MacBook - ArchWiki

# MacBook

Related articles

- Installation guide
- Beginners' guide
- General recommendations
- MacBook4,2 (late 2008)
- MacBook5,2 (early-mid 2009)
- MacBookPro7,1
- MacBookPro8,1/8,2/8,3 (2011)
- MacBookPro9,2 (Mid-2012)
- MacBookPro10,x
- MacBookPro11,x
- iMac Aluminum
- Apple Fusion Drive

Installing Arch Linux on a MacBook (Air/Pro) is quite similar to installing it on any other computer. However, due to the specific hardware configuration on a MacBook, there are a few deviations and special considerations which warrant a separate guide. For more background information, please see the Installation guide, Beginners' guide and UEFI. This guide contains installation-instructions that can be used on any Apple computer whose hardware is supported by the Linux kernel. Please see 'related' pages (on the top right of this page) for model-specific tips and troubleshooting.

## Overview

Specifically, the procedure for installing Arch Linux on a MacBook is:

1. Update OS X: It always helps to start from a clean, backed up, and up-to-date install of OS X.
2. Partition: Resizing or deleting the OS X partition to create partitions for Arch Linux.
3. Setup bootloader: Making sure that the new partition is bootable.
4. Install Arch Linux: Actually installing Arch Linux.
5. Post-installation: MacBook-specific configuration.

## Updating OS X

Note: If you uninstalled OS X or want to reinstall it, do that first. Apple has great instructions.

In OS X, install every update (in the App Store). Reboot your computer, and then update again to make sure that you installed everything.

- If you plan to remove OS X completely, make backups of these files, which you will need in Linux for adjusting the color profile:

Note: It is advisable to keep OS X, because the firmware can only be updated using OS X.

    /Library/ColorSync/Profiles/Displays/<FILES HERE>

You will also need the following file for iSight functionality:

Note: This does not apply to devices using the FaceTime HD webcam (MacBookAir5,1/5,2/6,1/6,2), because the webcam is not yet supported by the Linux kernel.

    /System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns/AppleUSBVideoSupport.kext/Contents/MacOS/AppleUSBVideoSupport

- If you plan to dual boot and want to keep OS X, continue to #Partitions

## Partitions

The next step in the installation is to re-partition the hard drive. If OS X was installed using the typical procedure, then your drive should have a GPT format and the following partitions:

- EFI: a 200 MB partition at the beginning of the disk. It is often read as msdos or FAT by some partitioning tools and usually labeled #1.
- OS X: the (HFS+) partition that should take up all of the remaining disk space. Usually labeled #2.
- Recovery: A recovery partition (only for OS X 10.7+).

Note: If your hardware includes a Fusion Drive you might have a look at the Apple Fusion Drive page.

How to partition depends on how many operating systems you want install. The following options will be explained:

- Single boot: #Arch Linux only
- Dual boot: #OS X with Arch Linux (recommended so you can still return to OS X when needed)
- Triple boot: #OS X, Windows XP, and Arch Linux triple boot

### Arch Linux only

This situation is the easiest to deal with. Partitioning is the same as any other hardware that Arch Linux can be installed on.

The only special consideration is the MacBook firmware boot sound. To ensure that this sound is off: mute the volume in OS X before continuing further. The MacBook firmware relies on the value in OS X, if available. Note that if you choose to get rid of the OS X partition, there is no easy way to update your machine's firmware unless you use an external drive to boot OS X. You can boot in EFI mode (recommended) or bios-compatibility mode, if in doubt choose EFI.

#### Option 1: EFI (recommended)

- Run cgdisk (gptfdisk package).
- Create the necessary partitions.

Note:

- The swap partition is optional, on machines with a RAM of size 4GB or more, good performance can be expected without a swap partition. Also, a swap file can be created later, see Swap file. You'll need a swap partition/file if you expect to Hibernate your machine in future.
- For more information on partitioning, see Partitioning hard disks: General information.
- As of Aug 2014 refind-efi has a bug that does not allow to run `refind-install` if EFI partition is mounted to `/boot`. Other bootloaders (like gummiboot) have no such problem and thus there is no need to split `/boot/efi` from `/boot`.

Simple example (no LVM, crypto):

    partition  mountpoint  size    type  label
    /dev/sda1  /boot/efi   200MiB  vfat  EFI
    /dev/sda2  /boot       100MiB  ext2  boot
    /dev/sda3  -           adjust  swap  swap
    /dev/sda4  /           10GiB   ext4  root
    /dev/sda5  /home       remain. ext4  home

- Done, you can continue to #Installation

#### Option 2: BIOS-compatibility

- Boot installation medium and switch to a free tty.
- Run parted. The simplest way is to change the partition table to msdos and then partition as normal. GRUB is compatible with GPT.

- Create the necessary partitions.

- Done, you can continue to #Installation

### OS X with Arch Linux

The easiest way to partition your hard drive, so that OS X and Arch Linux will co-exist, is to use partitioning tools in OS X and then finish with Arch Linux tools.

Warning: It is highly recommended that this only be attempted after a clean install of OS X. Using these methods on a pre-existing system may have undesired results.

Procedure:

- In OS X, run Disk Utility.app (located in `/Applications/Utilities`)

- Select the drive to be partitioned in the left-hand column (not the partitions!). Click on the partition tab on the right.

- Select the volume to be resized in the Volume scheme.

- Decide how much space you wish to have for your OS X partition, and how much for Arch Linux. Remember that a typical installation of OS X requires around 15-20 GiB, depending on the number of software applications and files.

- Finally, in the size box, type the smaller size to which you want to resize your OS X partition, and click Apply. This will create a new partition out of the empty space. You will delete this partition later.

Note: If you wish to have a shared partition between OS X and Arch Linux, then additional steps will need to happen here. Please see #HFS partition sharing.

- If the above completed successfully, then you can continue. If not, then you may need to fix your partitions from within OS X first.

Note: If you have any problems, try using the gparted live CD (i.e. instead of using Disk Utility and/or cgdisk). It is capable of shrinking the OS X partition and creating Linux partitions ready for installation.

- Boot the Arch installation LiveCD or LiveUSB by holding down the alt key during boot. Follow one of the procedures below according to your choice of boot method.

#### Option 1: EFI

- Run cgdisk

- Delete the partition you made in Disk Utility.app and create the necessary partitions for Arch Linux. OS X likes to see a 128 MiB gap after partitions, so when you create the first partition after the last OS X-partition, type in +128M when cgdisk asks for the first sector for the partition. A simple example (no LVM, crypto):

Note:

- The swap partition is optional on machines with 4GB of RAM or more. A swap file can be created later.
- The easiest dual-boot option is to install rEFInd from inside OS X, to its root directory (default for install.sh). Following that, copy the driver folder from the installation tarball into the new rEFInd location, and uncomment the lines "scan_all_linux_kernels" and "also_scan_dirs" options in refind.conf. Configuration of boot options can then be done from a refind_linux.conf in Arch's /boot directory.
- If you want to be able to boot GRUB from the Apple boot loader, you can create a small hfs+ partition (for convenience, use OS X to format it in Disk Utility.app afterwards). Follow the GRUB EFI install procedure, and mount your `/boot/efi` directory to the hfs+ partition you created. Finally, finish up again in OS X by blessing the partition. This will set GRUB as the default boot option (holding alt at startup goes to the mac boot options screen still. See http://mjg59.dreamwidth.org/7468.html)
- OS X's EFI partition can be shared with Arch Linux, making the creation of an additional EFI partition dedicated to arch completely optional

Note: For more information on partitioning, see Partitioning

    partition  mountpoint  size       type  label
    /dev/sda1  /boot/efi   200MiB     vfat  EFI
    /dev/sda2  -           ?          hfs+  OS X
    /dev/sda3  -           ?          hfs+  Recovery
    /dev/sda4  -           100MiB     hfs+  Boot Arch Linux from the Apple boot loader (optional)
    /dev/sda5  /boot       100MiB     boot  boot
    /dev/sda6  -           ?          swap  swap (optional)
    /dev/sda7  /           10GiB      ext4  root
    /dev/sda8  /home       remaining  ext4  home

- Done, you can continue to #Installation

#### Option 2: BIOS-compatibility

- Run parted as root.

- Delete the empty space partition and partition the space as you would for any other installation. Note that MBR is limited to 4 primary partitions (including the efi partition). That leaves 2 primary partitions for arch. One strategy is to have a system and home partition, and use a swap file (I have not tried to use logical partitions). Another is to dedicate one partition to a shared partition (see below).

- Next, create new filesystems on those partitions which need them, especially the partition which will contain /boot. If you are not sure how to do this using `mkfs.ext2` (or whatever), run `/arch/setup` and work through until you get to Prepare Hard Drive and use the "Manually configure block devices..." option, then exit the installer. This is necessary so that rEFIt will set the right partition type in the MBR in the next step (without an existing filesystem, it seems to ignore the partition type set by parted), without which GRUB will refuse to install to the right partition.

- At this point you should reboot your computer and have rEFIt fix the partition tables on your hard drive. (If you do not do this, you may have to reinstall GRUB later on in order to have your Mac recognize the Linux partition.) When you are into the rEFIt menu, select update partition table, then press Y. Reboot.

- Done, you can continue with #Installation.

### OS X, Windows XP, and Arch Linux triple boot

This may not work for everyone but it has been successfully tested on a MacBook from late 2009.

The easiest way to partition your hard drive, so that all these operating systems can co-exist, is to use disk utility in OS X, use the formatter on windows XP, install XP and then finish with Arch Linux tools.

Warning: It is highly recommended that this only be attempted after a clean install of OS X. Using these methods on a pre-existing system may have undesired results. At least back your stuff up with timemachine or clonezilla before you begin.

Procedure:

- In OS X, run Disk Utility (located in `/Applications/Utilities`).

- Select the drive to be partitioned in the left-hand column (not the partitions!). Click on the partition tab on the right.

- Select the volume to be resized in the volume scheme.

- Decide how much space you wish to have for your OS X partition, how much for XP, and how much for Arch Linux. Remember that a typical installation of OS X requires around 15-20 GiB, and XP about the same, depending on the number of software applications and files. Something like OS X 200Gb, XP 25Gb, Arch 25Gb should be fine.

- Put your decisions into action by pressing the + button and adding the new partitions, Label them as you like and make sure that your XP partition is the last one on the disk and is formatted for FAT32. It is probably best to have Arch formatted in HFS format as to not confuse you later, it will be reformatted anyway.

So in linux terms your partitions will be something like:

  - sda (disk)
  - sda1 (Mac boot partition - you cannot see this one in OS X)
  - sda2 (OS X install in HFS+)
  - sda3 (Arch install temporarly in HFS)
  - sda4 (XP install in FAT32)

- Finally, click apply. This will create a new partition out of the empty space.

Note: Using this method you may not be able to have a shared partition between OS X and Arch Linux, this is because the mac will only allow for 4 active partitions. You will however be able to mount a HFS partition in Arch for one workaround. There are other workarounds possible also.

- If the above completed successfully, you can continue. If not, then you may need to fix your partitions from within OS X first.

- You will not be needing boot camp this way, the program rEFIt is much more flexible (though not as flexible as GRUB). Download and install rEFIt [[1]]

- Go into a terminal in OS X and perform the following, this will enable the rEFIt boot manager.

    cd /efi/refit
    ./enable.sh

- Reboot to check the rEFIt is working, it should appear on boot. When it comes up go to the rEFIt partition manager and agree to the changes.

- Put your XP install CD and boot it with rEFIt - You may have to reboot a few times until it is recognized by the boot loader. Install XP and once it is installed use the OS X installation CD to get your drivers running nicely in XP.
  - Note: when installing XP make sure you select your XP partition and format it again inside the XP installer. If you do not reformat it will not work.

- Boot the Arch install CD, log in as root and run `# /arch/setup`.

- Follow the install as normal but note that you will have to tell that arch installer to mount sda3 as the root partition and format it as ext3, there will not be a /boot or swap partition so ignore those warnings.

- At this point, if you are dual booting, you should reboot your computer and have rEFIt fix the partition tables on your hard drive. (If you do not do this, you may have to reinstall GRUB later on in order to have your Mac recognize the Linux partition.) When you are into the rEFIt menu, select update partition table, then press Y.

    # reboot

- Done! You can continue to #Installation but make sure you read #Booting directly from GRUB for the stage "* (for booting with EFI) After the install boot loader stage, exit the installer and install GRUB."

## Setup bootloader

If you are going for an Arch Linux-only setup, installing the bootloader is no different than on any other machine: Install gummiboot, rEFInd or other bootloader of your choice.

If, on the other hand, you are dual/triple booting, then read on.

This article or section is out of date.

Reason: Section that describes bootloader setup for dual/triple boot should be revised and re-structured into more readable way (Discuss in Talk:MacBook#)

Tip: rEFIt is a popular bootloader for EFI-firmware computers (including Macs). It can be installed at any time during the installation. For instructions, please see #rEFIt.

### Installing GRUB to EFI partition directly

- If you would like to use GRUB as your main bootloader and use the "boot while holding the Alt/Option key" method to go back to OS X rather than using alternatives such as rEFIt (http://refit.sourceforge.net/, mentioned previously in #BIOS-compatibility and #OS X, Windows XP, and Arch Linux triple boot) then you must install grub to your Mac's already-existing EFI partition (see below).

Note: These instructions are known to work on a MacBook Pro (Early 2011). Please read the procedure carefully as well as the details following it.
Note: With a new MacBook Pro (Mid 2014), this procedure worked only after installing the efibootmgr package.

Procedure:

- Install grub

- Make a directory named `efi` in `/boot`

- Mount the already-existing EFI partition on your Mac to this `/boot/efi` directory

- Install GRUB to this directory

- Make a directory named `locale` in `/boot/grub`

- Copy `grub.mo` from `/usr/share/locale/en\@quot/LC_MESSAGES/` to `/boot/grub/locale`

- Generate a configuration for GRUB

- Done! GRUB will now start on reboot and you can boot into your newly installed Arch Linux.

- Remember to hold ALT/Option key while starting your computer if you want to boot back into OS X.

Details (quoted from GRUB_EFI_Examples#M5A97):

Finish the standard Arch install procedures, making sure that you install grub and partition your boot hard disk as GPT.

From GRUB#Install_to_UEFI_system_partition:

The UEFI system partition will need to be mounted at `/boot/efi/` for the GRUB install script to detect it:

    # mkdir -p /boot/efi
    # mount -t vfat /dev/sdXY /boot/efi

Where X is your boot hard disk and Y is the efi partition you created earlier.

Install GRUB UEFI application to and its modules to `/boot/grub/x86_64-efi` using:

    # modprobe dm-mod
    # grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=arch_grub --recheck --debug
    # mkdir -p /boot/grub/locale
    # cp /usr/share/locale/en\@quot/LC_MESSAGES/grub.mo /boot/grub/locale/en.mo

Generate a configuration for GRUB

    # grub-mkconfig -o /boot/grub/grub.cfg

### Using blessing

It is possible to boot directly from GRUB in EFI mode without using rEFIt through what is known as "blessing" after placing GRUB on a separate partition. These instructions are known to work on a MacBook7,1. It is advisable to host GRUB on either a FAT32 or HFS+ partition, but ext2 or ext3 may also work. GRUB's appleloader command does not currently work with the 7,1, but support can be added with the patch available here.

After the GRUB install is in the desired location, the firmware needs to be instructed to boot from that location. This can be done from either an existing OS X install or an OS X install disk. The following command assumes that the GRUB install is in `/efi/grub` on an existing OS X partition:

     # bless --folder /efi/grub --file /efi/grub/grub.efi

### Compilation

Some models may need EFI_ARCH set to i386.

     bzr branch --revision -2 bzr://bzr.savannah.gnu.org/grub/trunk/grub grub
     cd grub
     ./autogen.sh
     patch -p1 < appleloader_macbook_7_1.patch
     export EFI_ARCH=x86_64
     ./configure --with-platform=efi --target=${EFI_ARCH} --program-prefix=""
     make
     cd grub-core
     ../grub-mkimage -O ${EFI_ARCH}-efi -d . -o grub.efi -p "" part_gpt part_msdos ntfs ntfscomp hfsplus fat ext2 normal chain boot configfile linux multiboot
     cp grub.efi *.mod *.lst yourinstalllocation

## Installation

Note: This section is only required if you want to have OS X installed along with Arch Linux. If not, follow the steps in the official install guide, then skip to #Post-installation.

- Boot from the Arch Linux install CD, from the latest Archboot iso (unofficial), or from a manually created bootable USB drive.

Note:

- On a MacBookPro7,1, I had an error booting the installation media Version 2012.12.01: "unable to handle kernel NULL pointer dereference at 0000000000000010" during pacpi_set_dmamode. To fix this problem, boot with the option: acpi=off. After chrooting, add MODULES="ata_generic" into /etc/mkinitcpio.conf and execute mkinitcpio -p linux, see: Installation Guide, 9 Configure the system.
- Some MacBook users report strange keyboard output such as long delays and character doubling. To fix this problem, boot with the following options: arch noapic irqpoll acpi=force

- Proceed through the installation as described in the Installation guide except in the following areas:
  - In the prepare hard drive stage, do only the set filesystem mountpoints step, taking care to assign the correct partitions. Partitions have already been created if you followed #Partition
  - (for booting with EFI) After the install boot loader stage, exit the installer and install GRUB.
  - (for booting with BIOS-compatibility) In the install boot loader stage, edit the menu.lst file and add reboot=pci to the end of the kernel lines, for example:

        kernel /vmlinuz26 root=/dev/sda5 ro reboot=pci

    This will allow your MacBook to reboot correctly from Arch.
  - (for booting with BIOS-compatibility) Also in the install boot loader stage, install GRUB on whatever partition that `/boot` is on.
    Warning: Do not install GRUB onto /dev/sda !!! Doing so is likely to lead to an unstable post-environment.
  - In the configure system stage, edit /etc/mkinitcpio.conf and add the usbinput hook to the HOOKS line somewhere after the autodetect hook. This will load the drivers for your keyboard in case you need to use it before Arch boots (e.g. entering a LUKS password or using the troubleshooting shell).

- When the install process is complete, reboot your computer.

- If using optical media, hold down the eject key as your MacBook starts, this should eject the Arch Linux install disk.

- If dual-booting OS X and Arch Linux, hold down the alt (option) key while the system boots to use the Mac bootloader to select which OS to boot.

## Post-installation

This article or section needs language, wiki syntax or style improvements.

Reason: Duplicated information, does not comply with Help:Style. (Discuss in Talk:MacBook#)

See General recommendations for system management directions and post-installation tutorials like setting up a graphical user interface, sound or a touchpad.

#### Video

Different MacBook models have different graphic cards.

To see which graphics card you have type:

    $ lspci | grep VGA

- If it returns a string containing intel you only need the xf86-video-intel driver. Intel-based MacBooks work out-of-the-box.

- If it returns nVidia, read NVIDIA.

- Otherwise if it returns ATI or AMD, read ATI.

##### NVIDIA note

Tip: MBP 6.2 - With the proprietary NVIDIA drivers, support for PureVideo HD is available for hardware video decoding.

For MacBooks with NVIDIA graphics, for the backlight to work properly you may need the nvidia-blAUR package.

Tip:

- If backlight control does not work after installing nvidia-bl, you should blacklist apple_bl kernel module.
- Alternatively, you can choose to use the pommed-lightAUR package. If you do so, you may wish to change the step settings in `/etc/pommed.conf.mactel` to something around 5000-10000 depending on how many levels of brightness you desire. The max brightness is around 80000, so take that into account.

##### MacBookPro5,5, NVIDIA and secondary display

As of January 1 2011, the latest NVIDIA drivers (290.10) might not work properly when a secondary display is used (tested with TwinView), NVIDIA's current long-live supported 275xx drivers seem to work fine. Install nvidia-275xxAUR and nvidia-utils-275xxAUR, and possibly lib32-nvidia-utils-275xxAUR if you are on x86_64 system and want 32-bits support.

MacBookPro5,5 has an NVIDIA 9400m graphics card. This problem might apply to other devices as well.

#### Touchpad

The touchpad should have basic functionality by default. A true multitouch driver which behaves very similarly to native OS X is included in the xf86-input-multitouch-gitAUR package. It supports 1, 2 and 3 finger gestures, including differentiation between horizontal and vertical 3 finger swipe. Additional details are available at the driver's project page.

xf86-input-multitouch-git does not support any sort of configuration without editing the driver's source. Some users are also experiencing issues with false clicks from palm touches. There is now a much more configurable fork available as xf86-input-mtrack-gitAUR. Configuration options are documented in the readme.

The following mtrack options work well on a MacBook7,1:

     Option "Thumbsize" "50"
     Option "ScrollDistance" "100"

Probably you need also to add:

     MatchDevicePath "/dev/input/event10"

To disable tap-to-click (that is, to press down to click) by default, add the following to your mtrack configuration section

       Option          "TapButton1" "0"
       Option          "TapButton2" "0"
       Option          "TapButton3" "0"

Natural scrolling: To configure natural two finger scrolling similar to OS X, refer to Touchpad Synaptics#Natural scrolling. If you are using GNOME, it will override these settings - in this case refer to GNOME#Natural_scrolling_touchpad.

If you are using xf86-input-mtrack-gitAUR, you can simply swap the scroll up and scroll down buttons (along with the scroll left and scroll right):

    /etc/X11/xorg.conf.d/10-mtrack.conf

      ...
      Option "ScrollUpButton" "5"
      Option "ScrollDownButton" "4"
      Option "ScrollLeftButton" "7"
      Option "ScrollRightButton" "6"
      ...

Special Note About Older Macbook Models (confirmed on MacBook2,1): On older Macbook models (pre-multitouch), the touchpad will not function properly until you install the xf86-input-synaptics package. Please see Touchpad Synaptics for more information on installing and configuring this package.

Note on MacBookPro5,5: I found it is much simpler to use the xf86-input-synaptics in Extra. Although it does not have much function as 3 finger swipe, this driver provides faster response. gpointing-device-settings also provides a simple GUI config. Below is a Xorg config file /etc/X11/xorgconfig.d/60-synaptics.conf for reference only.

     Section "InputClass"
           Identifier "touchpad catchall"
           Driver "synaptics"
           MatchIsTouchpad "on"
           MatchDevicePath "/dev/input/event*"
           Option "SHMConfig" "on"
           Option "TapButton1" "1"
           Option "TapButton2" "3"
           Option "TapButton3" "2"
           Option "PalmDetect" "on"
           Option "VertEdgeScroll" "off"
           Option "HorizEdgeScroll" "off"
           Option "CornerCoasting" "off"
           Option "EdgeMotionUseAlways" "off"
           Option "AreaLeftEdge" "10"
           Option "AreaRightEdge" "1270"
     EndSection

For some users, the two-finger right-click may not work correctly and trackpad may also become less responsive after these settings. For me, removing the 'AreaLeftEdge' and 'AreaRightEdge', solved that problem. OS X like MultiTouch Gestures currently broken due to newer synaptic drivers! For users looking to add more of OS X's multitouch gestures to Arch, xSwipe is a highly customisable, light weight perl script, which does just that. Once installed and configured (see xSwipe wiki on Github) I would recommend adding xSwipe as a start up item.

#### Keyboard

MacBook keyboards work by default. For swaping fn keys with Fx keys see Apple Keyboard.

To enable it you can map with right application like xbindkeys or through DE preferences; but another very good way, that we recommend, is to install the pommedAUR package.

    Edit the /etc/pommed.conf according to your hardware on MacBook, building
    it from /etc/pommed.conf.mac or /etc/pommed.conf.ppc example files.

Note that you can also run it without a configuration file, the defaults may work for you. Then enable and start pommed Systemd service.

    systemctl enable pommed
    systemctl start pommed

Tip: if you are using Gnome or KDE you can easily configure 3rd level functionality, multimedia key, etc. in Keyboard Preferences.
Note: See the Xorg input hotplugging page for other configuration information.

##### Keyboard Backlight

The keyboard backlight is controlled by `/sys/class/leds/smc::kbd_backlight`. Write the desired value to `brightness` in that directory.

You may also use kbdlightAUR to control keyboard backlight though scripts or by running it via sxhkd. It has the advantage of allowing keyboard light-level changes without being root.

###### NVIDIA note

If the brightness does not function correctly through pommed, make sure you have installed the nvidia-blAUR package and insert

    find . -name "*" -exec sed -i 's/mbp_backlight/nvidia_backlight/' '{}' \;

into the second line of the pommed PKGBUILD build() function and remake the package. From this forum post.

Another possible solution is to modify the pommed PKGBUILD build():

    find . -name "*" -exec sed -i 's/nvidia_backlight/apple_backlight/' '{}' \;

If the previous does not work try the following,

run nvidia-settings, edit the file '/etc/X11/xorg.conf' and add this line into the Device section:

    Option "RegistryDwords" "EnableBrightnessControl=1"

Save and reboot and check backlight buttons work. More information available at Ubuntu MacBookPro5,5

### Wi-Fi

Different MacBook models have different wireless cards.

You can easily check what card do your MacBook have by:

    # lspci | grep Network

- If you have an Atheros card, all should work out-of-the-box.

- If you have a Broadcom card, follow the Broadcom BCM4312 page.

- 5.0 and 6.0 generation MacBooks may have a BCM43xx, follow the instructions for the broadcom-wl driver on the Broadcom wireless page. The interfaces can swap during reboot so its best to define them in a udev rule (instructions on the Broadcom wireless page).

- 8.1 generation MacBooks have BCM4331, for which support is not present in either Linux (3.0 and 3.1) or the proprietary drivers by Broadcom. There is however preliminary support for it in Linux 3.2. To run the drivers on earlier kernels, you will need to use compat-drivers

Note: If your connection frequently drops, you may have to turn off Wi-Fi power management. If you are running pm-utils, you may override wireless power management by creating an executable file `/etc/pm/wireless` with the lines:

    #!/bin/sh
    iwconfig wlp2s0 power off

### Power management

Powerdown is a very simple to set up set of scripts what will maximize your battery duration. A MacBook Air 2013 with powerdown provides abour 11 hours of light usage with just powerdown installed. All the usual power management recomendations apply as well.

#### Suspend and Hibernate

Suspending (suspend to ram) and hibernating (suspend to disk) work fine out of the box:

       systemctl suspend

Issues were reported where the machine would "suspend immediately after resume" in certain conditions when suspending by closing the lid. This was solved by de-selecting the option "event_when_closed_battery" in gconf-editor → gnome-power-manager → actions).

See Suspend and hibernate for details on how to configure hibernation. Noticably, you'll need a swap partition or file (see the mentioned article for further instructions).

If after suspend laptop is woken up after few seconds, may help to disable all stuff in /proc/acpi/wakeup, exclude LID0:

    # echo XHC1 > /proc/acpi/wakeup
    $ cat /proc/acpi/wakeup
    Device	S-state	  Status   Sysfs node
    P0P2	  S3	*disabled
    EC	  S3	*disabled
    HDEF	  S3	*disabled  pci:0000:00:1b.0
    RP01	  S3	*disabled  pci:0000:00:1c.0
    RP02	  S3	*disabled  pci:0000:00:1c.1
    RP03	  S3	*disabled  pci:0000:00:1c.2
    ARPT	  S4	*disabled  pci:0000:03:00.0
    RP05	  S3	*disabled  pci:0000:00:1c.4
    RP06	  S3	*disabled  pci:0000:00:1c.5
    SPIT	  S3	*disabled
    XHC1	  S3	*disabled  pci:0000:00:14.0
    ADP1	  S3	*disabled
    LID0	  S3	*enabled

And for permanent disabling:

    $ cat /etc/udev/rules.d/90-xhc_sleep.rules

    # disable wake from S3 on XHC1
    SUBSYSTEM=="pci", KERNEL=="0000:00:14.0", ATTR{power/wakeup}="disabled"

### Light sensor

If you want to use the built in light sensor to automatically adjust screen and keyboard backlight brightness check out Lighter [2] (simple perl script, easy to fine-tune) and Lightum [3] (Requires Gnome or KDE but is older and more complete than Lighter).

### Sound

Tip: If using ALSA, the internal speaker might not be disabled when using the headphone jack. To solve this, enable "Auto-mute" using `alsamixer`

First of all follow ALSA wiki page, then if something does not work correctly, continue reading this part.

Edit your `/etc/modprobe.d/50-sound.conf` or `/etc/modprobe.d/modprobe.conf` appending this line:

    options snd_hda_intel model=intel-mac-auto

This should automatically specify the codec in your MacBook. Alternatively, for MacBookPro5,X, you can use:

    options snd_hda_intel model=mb5

(note that the jack output is controlled with "HP").

If you have an iMac8,1, you should instead use

    options snd-hda-intel model=mbp3 position_fix=2

You can try to specify other options, that depend on your hardware. All other possible settings are listed in Kernel Documentation, avaible online:

- ALSA-Configuration.txt
- HD-Audio.txt
- HD-Audio-Models.txt.}}

Then, reboot.

### Bluetooth

Bluetooth should work out-of-the box. See the article on Bluetooth to install and configure all software needed.

### Webcam

#### iSight

Note: Linux kernel from 2.6.26 includes the Linux UVC driver natively. MBP 6,2+ (Kernel ~2.6.37+) iSight works out of the box without the need to use firmware from OS X. Only use `isight-firmware-tools` if it doesn't work normally.

iSight webcams on MacBooks or pre 6,2 MacBook Pros (6,2 came out around 2010) require the Apple's proprietary firmware that cannot be redistributed. It must be extracted from OS X and loaded onto Arch.

You will need to install isight-firmware-toolsAUR to extract the firmware. This package also includes a udev rule and ELF binary that are necessary, even once you have extracted the firmware file into `/lib/firmware/isight.fw`, for the file to be loaded every time you boot your computer (namely `/etc/udev/rules.d/isight.rules` which uses `/usr/lib/udev/ift-load`).

Instructions:

First you need to get the firmware out of a particular file located on your OS X install. It is located in `/System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns/AppleUSBVideoSupport.kext/Contents/MacOS/AppleUSBVideoSupport`.

Tip: The `AppleUSBVideoSupport` file from a OS X 10.6 (Snow Leopard) installation may not work properly. If possible, use the file from OS X 10.5 or earlier.

To mount the OS X drive if multi-booting:

    # sudo mkdir /media/OSX
    # sudo mount -t hfsplus /dev/sda2 /media/OSX

Then, install the isight-firmware-toolsAUR package.

Locate the `AppleUSBVideoSupport` file in the OS X directory listed above. Either copy it over to your Arch system (Any OS X installation should do, such as an iMac, not just one specific to your system) or, if multi-booting, mount the OS X drive and navigate to the directory. (On 10.7 (Lion) the directory is `/System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns/AppleUSBVideoSupport.kext/Contents/MacOS`.) In that directory you can go ahead and extract the driver:

    # ift-extract --apple-driver AppleUSBVideoSupport

When it's done, check that the firmware has been found:

    # ls /lib/firmware/isight.fw

Once successful, completely SHUTDOWN your Mac and start it back up again (to clear the hardware state of the webcam). Do not reboot.

It should be automatically loaded at boot; if it isn't you can load the uvcvideo module manually or load it at boot.

You can use many applications to test the webcam:

- MPlayer

    # mplayer tv:// -tv driver=v4l2:width=320:height=240:device=/dev/video0 -fps 30

- Cheese
- Skype
- Ekiga

A simple solution to take snapshots is:

    # mplayer tv:// -vf screenshot

and the pressing the s key to take a snapshot. Files are of the format `shot\d\d\d\d.png` and are reported in the standard output.

#### Facetime HD

The Facetime HD webcam (included on 2013 MBAs onwards) is no longer UVC device, and therefore, does not work out of the box. It is actually a PCIE device. While a bcwc_pcie driver is being developed, it will probably take some time before it is ready. See also Linux bug #71131 and Ubuntu bug #1276711.

### Temperature Sensors

For reading temperature just install lm_sensors. See the Lm sensors page for more information.

### Color Profile

We can use color profiles from OS X.

First, install the xcalibAUR package.

Second copy pre-saved color profiles placed in `/Library/ColorSync/Profiles/Displays/` on OS X partition to `~/colorprofiles/` for example.

There are color profile files agree with in MacBook models; select the right one:

- Color LCD-4271800.icc for MacBook Pro with CoreDuo CPU
- Color LCD-4271880.icc for MacBook with Core2Duo
- Color LCD-4271780.icc for MacBook (non-Pro) based on CoreDuo or Core2Duo.

Tip: Also OS X allows to save current color profile from Displays > Color section of the Mac OS System Preferences, in this case file is saved to `/Users/<username>/Library/ColorSync/Profiles`.

Finally you can activate it by running

    # xcalib ~/colorprofile.icc

Note: Previous command set the color profile only for the current session; this mean that you must run it every time you login in your system. For automating it you can execute the command by Autostart Application, concording with your DE (or add the command to your login manager's initialization script, e.g. /etc/gdm/Init/Default).

### Apple Remote

First, to correctly install and configure the lirc software that control IR see LIRC wiki.

Then make LIRC use `/dev/usb/hiddev0` (or `/dev/hiddev0`) by editing `/etc/conf.d/lircd`. Here is how mine look:

    #
    # Parameters for lirc daemon
    #
    LIRC_DEVICE="/dev/usb/hiddev0"
    LIRC_DRIVER="macmini"
    LIRC_EXTRAOPTS=""
    LIRC_CONFIGFILE="/etc/lirc/lircd.conf"

Use irrecord (available when installing lirc) to create a configuration file matching your remote control signals (alternatively, you can try to use the `lircd.conf` below):

    # irrecord -d /dev/usb/hiddev0 -H macmini output_conf_file

Start lircd and use irw to check if it works.

Example of an `/etc/lirc/lircd.conf`:

    begin remote

      name  lircd.conf.macbook
      bits            8
      eps            30
      aeps          100

      one             0     0
      zero            0     0
      pre_data_bits   24
      pre_data       0x87EEFD
      gap          211994
      toggle_bit_mask 0x87EEFD01

          begin codes
              Repeat                   0x01
              Menu                     0x03
              Play                     0x05
              Prev                     0x09
              Next                     0x06
              Up                       0x0A
              Down                     0x0C
          end codes

    end remote

### HFS partition sharing

First, install the hfsprogsAUR package.

we have to list our partitions. Use

    fdisk -l /dev/sda

example output:

    # fdisk -l /dev/sda
        Device  Boot     Start         End      Blocks   Id  Type
     /dev/sda1               1          26      204819   ee  GPT
     /dev/sda2              26       13602   109051903+  af  Unknown
     /dev/sda3   *       13602       14478     7031250   83  Linux
     /dev/sda4           14478       14594      932832+  82  Linux swap / Solaris

As we see, the "Unknown" partition is our OS X partition, which is located in `/dev/sda2`.

Create a "mac" folder in /media:

    # mkdir /media/mac

Add at the end of /etc/fstab this line:

    /dev/sda2    /media/mac     hfsplus auto,user,rw,exec   0 0

Mount it :

    mount /media/mac

and check it:

    ls /media/mac

### HFS+ Partitions

HFS+ partitions, now the default in OS X, are not fully supported by Linux and are mounted as read-only by default. In order to write to an HFS+ partition, it is necessary to disable journaling. This can be accomplished using the OS X Disk Utility. Refer to this Apple support page for more information.

### Home Sharing

UID Synchronization

#### In OS X

Note: It is strongly recommended that UID/GID manipulation be done immediately after a new user account is created, in OS X as well as in Arch Linux. If you installed OS X from scratch, then this operation is guaranteed to work after logging into your account for the first time.

##### Step 1: change UID and GID(s)

Pre-Leopard

1. Open NetInfo Manager located in the /Applications/Utilities folder.
2. If not done for you already, enable access to user account transactions by clicking on the closed lock at the bottom of the window, and entering your account password, or root password if you have created a root account.
3. Navigate to /users/<new user name> where <new user name> is the name of the account that will have read/write access to the folder that will be shared with the primary user in Arch.
4. Change the UID value to 1000 (the value used by default for first user created in Arch).
5. Also change the GID value to 1000 (the value used by default for user account creation in Arch).
6. Navigate to `/groups/<new user name>`, automatically saving the changes you have made so far.

Note: If you get an error message that the transaction is not allowed, log out and log back in.

Leopard

In Leopard, the NetInfo Manager application is not present. A different set of steps is required for UID synchronization:

1. Open System Preferences.
2. Click on Users & Groups.
3. Unlock the pane if not already done so.
4. Right-click on the desired user and select Advanced Options.
5. Write down the value of the User ID field, you will need it later on. Change both the UID and GID to match the UID and GID of the account wished to be shared with in Arch (1000 by default for the first user created in Arch).

##### Step 2: change "Home" permissions

1. Open up Terminal in the `/Applications/Utilities` folder.

1. Enter the following command to reclaim the permission settings of your home folder, replacing <your user name>, <your user group> and <your old UID> with the user name whose UID and GID values you just changed, the group name whose GID value you just changed and the old UID number, respectively.

    # find /User/<your user name> -user <your old UID> -exec chown <your user name>:<your user group> {} \;

#### In Arch

To synchronize your UID in Arch Linux, you are advised to perform this operation while creating a new user account. It is therefore recommended that you do this as soon as you install Arch Linux.

Now you must substitute Arch's home with OS X's home, by modify entries of `/etc/fstab`.

### Avoid long EFI wait before booting

If your MacBook spends 30 seconds with "white screen" before booting you need to tell the firmware where is the booting partition.

Boot OS X, if do not have it installed, you can use the install DVD (select language, then click Utilities->Terminal), or another MacBook with OS X (connect the two computers via firewire or thunderbolt, start the other MacBook keeping pressed T, boot your MacBook keeping pressed Options).

Either way, once you got a OS X terminal running on your MacBook you need to execute, as root, a different command if the boot partition is EFI or it is not:

    # bless --device /dev/disk0s1 --setBoot            # if the booting partition is EFI

or

    # bless --device /dev/disk0s1 --setBoot --legacy   # if the booting partition is not EFI

(given that if your GRUB or EFI is on sda1, /dev/disk1s2 if it is on sdb2, etc). See also https://bbs.archlinux.org/viewtopic.php?pid=833215 and https://support.apple.com/kb/HT1533 .

### Mute startup chime

If you forgot to mute before installing, you can still mute again if you have a OS X install disk. Boot from it, select language, then click Utilities > Terminal, and enter

    # /usr/sbin/nvram SystemAudioVolume=%01

(or whatever volume you want).

### kworker using high CPU

Sometime with the addition of Yosemite, some users found that kworker CPU usage will spike, as disccused here. This is sometimes the result of runaway ACPI interrupts.

To check and see, you can count the number of recent ACPI interrupts and see if any of them are out of control.

       grep . -r /sys/firmware/acpi/interrupts/

If you see that one particular interrupt is out of control (possibly GPE66), i.e., registering hundreds of thousands of lines, you can try disabling it (replace XX with the runaway interrupt):

       echo "disable" > /sys/firmware/acpi/interrupts/gpeXX

Disabling random ACPI interrupts could cause all kinds of problems, so do this at your own risk. If this fixes the problem, there is discussion about how to make a systemd service that automatically disables an interrupt at every boot here.

## rEFIt

Note:

- You probably want to have a look at rEFInd, which is some type of successor of rEFIt.
- This is not a requirement. It only gives you a menu to choose between OS X and Arch Linux upon every boot.

For more see, rEFIt myths.

In OS X, download the ".dmg" from rEFIt Homepage and install it.

Note: If you have already partitioned your hard disk in preparation for the Arch installation, rEFIt may not be enabled by default. You will have to run the "enable.sh" script installed in /efi/refit/.

Open up Terminal and enter:

    cd /efi/refit;
    ./enable.sh

### Problems with rEFIt

If you experience problems after the install of Arch or rEFIt, especially is the right OS is not showing up to boot to or if it dumps you at a GRUB prompt stuck like the following:

    GRUB>_

Then have a look at this link:

http://mac.linux.be/content/problems-refit-and-grub-after-installation

It can give you a basic idea on how to boot off the Arch live cd, mount the problem Arch install, chroot, use gptsync, and reinstall GRUB. This is probably for more advanced users who can translate the commands from a debian system to an Arch system and also apply it to the partitions on their machine. Be careful not to install GRUB in the wrong spot.

If you need a copy of gptsync you can wget it from here: http://packages.debian.org/sid/gptsync or try these, for 64 bit:

wget http://ftp.us.debian.org/debian/pool/main/r/refit/gptsync_0.14-2_amd64.deb

and for i386:

    wget http://ftp.us.debian.org/debian/pool/main/r/refit/gptsync_0.14-2_i386.deb

since they are .deb packages you will need the program deb2targzAUR.

#### Mavericks upgrade breaks Arch boot option

For some multi-boot users who utilize a separate Linux boot partition, the OS X Mavericks upgrade may overwrite the boot partition with Apple's own recovery boot filesystem. This breaks the Arch Linux boot option in rEFIt/rEFInd. The best way to proceed in this situation is to abandon a separate boot partition and use the EFI system partition (ESP) to install the bootloader of your choice. It is also recommended that you use rEFInd instead of rEFIt as development on the latter has halted.

Assuming grub2 as the bootloader:

Use the Arch LiveCD to boot to a shell and chroot to your broken Arch Linux environment.

Mount the ESP on /boot.

Edit the fstab and remove the old boot partition and make ESP the new boot partition. Now mount the ESP as the new /boot parition.

    # mount -a

Reinstall linux.

Create a new initramfs and vmlinuz in /boot.

    # mkinitcpio -p linux

Install grub.

    # grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=grub --recheck --debug

Create a new grub.cfg file.

    # grub-mkconfig -o /boot/EFI/grub/grub.cfg

Make sure that grub.cfg is in the same directory as grubx64.efi.

Generate a new refind_linux.conf file in /boot simply by running mkrlconf.sh which comes with rEFInd.

Exit the chroot environment.

Reboot. You should see a new entry for Arch Linux in rEFInd and it should boot to your Arch Linux installation.

## Model-specific information

### MacBook

#### Mid 2007 13" - Version 2,1

Note: I used the 201212 ISO image.

Since older Macbooks have a 32bit EFI running, the usual installation image is not recognized. You need to either remove the UEFI support from the disc (Unified_Extensible_Firmware_Interface#Remove_UEFI_boot_support_from_ISO) or build a 32bit EFI version of the disc. The paragraphs below will take the first path to success, booting into BIOS mode and its pitfalls. For a try the other way round, read Unified_Extensible_Firmware_Interface#Create_UEFI_bootable_USB_from_ISO first.

First prepare your harddisc according to your wishes. In this scenario it was a "Linux only" approach with

    /dev/sda1 HFS+ AF00 200M -> EFI boot system on Apple HFS+ partition
    /dev/sda2 ext4 8300 147G -> arch system
    /dev/sda3 swap 8200 1G   -> swap

The hfsprogsAUR package contains the tools to handle HFS/HFS+ filesystems. The rEFInd bootloader recognizes it on its own. Usually the partition for the EFI bootloader is a FAT32 (vfat) partition. In this case I tried rEFIt first, which apparently needs the HFS+ filesystem to work, and kept it at that.

The mount points are:

    /dev/sda2 -> /
    /dev/sda1 -> /boot/EFI

The bootloader in use was rEFInd instead of rEFIt. To install it, the rEFInd homepage provides a good guide. Usually it is simply done by copying rEFInd:

    cp -vr /usr/share/refind/drivers_ia32 /boot/EFI/refind/
    cp -vr /usr/share/refind/tools_ia32 /boot/EFI/refind/
    cp -vr /usr/share/refind/fonts /boot/EFI/refind/
    cp -vr /usr/share/refind/icons /boot/EFI/refind/
    cp -v /usr/share/refind/refind_ia32.efi /boot/EFI/refind/
    cp -v /usr/share/refind/refind.conf-sample /boot/EFI/refind/refind.conf
    cp -v /usr/share/refind/refind_linux.conf-sample /boot/refind_linux.conf

Note: I'm using the 32bit version of Arch and refind, since the EFI of the old MacBooks is 32bit. I'm not sure about 32bit rEFInd booting a 64bit Arch...

The pitfall here is, that the system bootet in BIOS compatibility mode and not in EFI mode. You cannot therefore use `efibootmgr`, because the EFI variables (even with 'modprobe efivars') are not available. While installing the system get mactel-bootAUR. The `hfs-bless` utility comes in handy, when blessing the EFI bootloader. This is done by calling:

    hfs-bless /boot/EFI/refind/refind_ia32.efi

Since the Linux kernel does come with EFI stub enabled, it seems a good idea to run it through a bootloader first. Especially if it runs not out of the box. But using rEFInd makes GRUB (or any other bootloader) obsolete, because of that.

Note: In the refind_linux.conf you add any kernel option you may want as long as you use the EFI stub of your kernel. In refind.conf you adjust your needs for the bootloader itself, like menu entries. If you use them (menu entries), rEFInd should not look for these EFI stub kernels itself, so blacklist the directories used in here, like `/boot/`.

Not running out of the box is unfortunately the initial stage for the kernel. Since we installed it in BIOS mode, two modules are missing to grant access to the root partition while booting. Hence the 'initfsram-linux.img' can not be found/loaded. Adding the following modules to your 'MODULES' line in `/etc/mkinitcpio.conf` solved this (original post).

    /etc/mkinitcpio.conf

    MODULES="ahci sd_mod"

Rebuild your kernel image:

    mkinitcpio -p linux

The bootloader rEFInd can scan kernels even out of the '/boot/...' directory and assumes an efi kernel even without the extension '.efi'. If you do not want to try out special kernels, this should work without the hassle to copy each kernel after building to some spot special.

If you happen to get multiple entries for one boot image, it often results of a previous installation of a bootloader within the MBR. To remove that, try the following - taken from the original post. This is valid for GPT partitioned discs, so please check your environment and save your MBR first.

    # dd if=/dev/zero of=/dev/sda bs=440 count=1

### MacBook Pro with Retina display

#### Early 2015 13"/15" - Version 12,x/11,4+

##### Wireless

The `brcmfmac` driver is working (with some issues) out of the box as of 2015-05-02.

- 5GHz is not working.
- There seems to be an issue which might lead to a kernel oops. See this post for further information and a patch which seems to fix the problem.

For Network controller BCM43602 14e4:43ba "Broadcom Corporation Device 43ba (rev 01)", on MacBookPro12,1 (output of "sudo dmidecode -s system-product-name"):

- you need kernel version 3.17+ See this driver page for details.
- the kernel oops / freeze appeared - This patch does fix (as far as I could test) the problem that appeared when running multiple (in my case 6) concurrent downloads. This patch is included in kernel 4.0.5 :)
- But there is another problem : Even with the patch applied I ran in another kernel (version 4.0.4) freeze triggered by the brcmfmac kernel module ! - See this new bug report.

##### Bluetooth

Bluetooth is not working at all.

    # hcitool dev
    Devices:

##### Keyboard & Touchpad

Haptic feedback works out of the box due to how the touchpad device works. (Kernel 4.1.4 and lower)

As of 4.2-rc5 the touchpad and keyboard are working. You can install this kernel version using the linux-mainlineAUR package.

See this kernel bugzilla for more details and the relevant patches for earlier kernels.

##### Graphics

For Dual Graphics see this section on the 11,3 For 8086:162b "Intel Corporation Broadwell-U Integrated Graphics (rev 09)" intel Iris 6100, on MacBookPro12,1 (output of "sudo dmidecode -s system-product-name"):

- acpi_backlight=vendor with kernel 4.0.4 as kernel parameter is necessary to help fixing fn+brightness not working in X because of a ghost acpi_video0 brightness control. See this bug report, and the working patch, confirmed with kernel 4.0.4, that fixes the problem (so no acpi_backlight=vendor or video.* parameter necessary anymore to get working brightness controls).
- i915.enable_ips=0 is necessary with kernel 4.0.4, as there is an issue on my MacBookPro12,1 (output of "sudo dmidecode -s system-product-name") that makes the ips - intermediate pixel storage (primarily a power saving feature) cause /flickering/ when mode switching (to tty console).
- i915.lvds_downclock=1 ("Use panel (LVDS/eDP) downclocking for power savings"), sounds good, but will do nothing (because the MacBook has an eDP panel! there's a new auto-downclock for edp in recent kernels and it's enabled by default if available :), so don't use - recommendation from irc #intel-gfx)
- intel_iommu=igfx_off if you have GPU HANG: ecode 8:0:0x85dffffb, in X [1737] blah-blah in dmesg and GPU hangs all the time during OpenGL operations.

##### US International Keyboard & Trackpad

This patch was needed in kernel 4.0.1 to make the touchpad 2-finger click (aka right click) or 3-finger click (aka middle click) work.

The keyboard should be a an ISO layout, as according to this article the international (ISO) version has a key more (between the left-shift and the "z" key), which is the case. And the kernel patch was necessary on a 4.0.1 kernel to add the usb identifiers needed to make the FN keys work.

##### Apple Thunderbolt 2 Gigabit Ethernet Dongle

on MacBookPro12,1 (output of "sudo dmidecode -s system-product-name") there is a bug (in kernel 4.0.4) in that the dongle gets recognized on boot-up and works just fine, but is not hotpluggable, so when unplugged it does not get recognized / work at all when replugged. See the following kernel bug report: https://bugzilla.kernel.org/show_bug.cgi?id=100191

#### 2012 - 2014 models

- MacBookPro11,x (Late 2013—Mid 2014)
- MacBookPro10,x (Mid 2012—Early 2013)

### MacBook Air

#### Early 2014 11" - Version 6,1

This is almost the same as the 2013 version, where the only known difference is a slightly faster processor. The version numbers have not been changed since the 2013 version.

It works excellently after following the instructions for the MBA 2013 13" here and in the forum thread. Bluetooth, which has been reported not working for some people with the 2013 version, works without trouble for the 2014 version, although it should be excactly the same.

Note: Unless you have a local repository on a USB disk, you need a USB to ethernet adaptor or a USB wireless adaptor supported natively by the kernel to easily install Arch Linux, since you have to install the broadcom-wl-dkmsAUR package to make the internal wireless adaptor work.

Unresolved issues:

     - There is no driver for the webcam yet.
     - rEFInd uses 30 seconds to start booting. Using the bless trick stops rEFInd from loading, and it has to be re-installed.

#### Mid 2013 13" - Version 6,2

Dedicated forum thread

##### Installing and booting

Booting from a normal 2013.6 USB key works fine, but I could not seem to get either GRUB or Syslinux working.

I was able to boot by first installing Arch Linux following the MacBook guide at the wiki (having a separate FAT32 /boot partition). Skip the bootloader installation.

Installing rEFInd from OS X (important!) and installing the EFI stub loader made me able to boot fine.

Dedicated thread.

Note: Installing rEFInd from Linux (or from OS X, but to the esp) also works fine

##### Arch Only Installation

This method works without rEFInd and uses grub to boot EFI. Partition as follows:

     /dev/sda1 200M Microsoft basic data
     /dev/sda2 256M Linux filesystem
     /dev/sda3 4G Linux swap
     /dev/sda4 108.6G Linux filesystem

sda1 can also be a HFS+ partition for EFI. This example chooses to use FAT32 (vfat). Although swap is optional, it is required for hibernation. Instead of sda4 for root and home, an alternative partition scheme would be to make sda4 as root and sda5 as home.

Format and mount:

     mkfs.vfat -F 32 /dev/sda1
     mkfs.ext2 /dev/sda2
     mkswap /dev/sda3
     swapon /dev/sda3
     mkfs.ext4 /dev/sda4

     mount /dev/sda4 /mnt
     mkdir /mnt/boot
     mount/dev/sda2 /mnt/boot
     mkdir /mnt/boot/efi
     mount /dev/sda1 /mnt/boot/efi

Finish the installation according to the Beginner's Guide and skip anything after the bootloader. After you have generated your initramfs and set root passwd follow below to setup grub:

     pacman -S grub efibootmgr
     mount -t efivarfs efivarfs /sys/firmware/efi/efivars
     grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=grub --recheck --debug
     grub-mkconfig -o /boot/efi/EFI/grub/grub.cfg
     cp /boot/efi/EFI/grub/grub.cfg /boot/grub/grub.cfg
     cp /boot/efi/EFI/grub/grubx64.efi /boot/efi/EFI/boot/bootx64.efi}}

Now you can exit/unmount/reboot:

     exit
     umount -R /mnt
     reboot

##### Stability problems

Note: Passing `libata.force=1:noncq` to the kernel parameters solves the problem.

This is the big worry for me. Every now and then my system hangs for a brief moment and everything involving net or disk access just hangs there for a while and then it seems to work. So far it only seems to happen when I run something disk- or CPU-intensive. Also had an occassion when I could not start X and just got this repeating all over my screen:

    ata1.00: failed command: WRITE FPDMA QUEUED
    ata1.00: cmd 61/08:f0:10:8c:c2/00:00:0b:00:00/40 tag 30 ncq 4096 out
    res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
    ata1.00: status: { DRDY }

On the next attempt it worked fine. I did SMART short and long tests on my disk and they returned fine:

smartctl -a

There are some messages in my boot that indicate this could be disk and/or ACPI related.

These are with 2013-06 ISO, 3.9.7-1 2013 x86_64 kernel.

journalctl -b Seems to only work with the headphone jack, not with the speakers.

dmesg

##### Marvell ATA suspend bugs

If you have 2013 MacBook Air with a Marvell 128 gig drive, you might get the following ata errors instead after pm-suspend/resumes:

    ata1: exception Emask 0x10 SAct 0x0 SErr 0x10000 action 0xe frozen
    ata1: irq_stat 0x00400000, PHY RDY changed
    ata1: SError: { PHYRdyChg }
    ata1: hard resetting link
    ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
    ata1.00: unexpected _GTF length (8)
    ata1.00: unexpected _GTF length (8)
    ata1.00: configured for UDMA/33
    ata1: EH complete

Try what Patrick and Tejun figured out on the linux bug. I followed what Patrick describes with sata_alpm, and I haven't seen the issue since.

##### Suspend/Resume

Brightness is either 0% or 100% after resuming from suspend. Until the kernel is fixed, use patjak's fix by installing mba6x_bl-dkmsAUR. Patjak's github is at [4].

##### WiFi

WiFi does not work out of the box. Install broadcom-wl-dkmsAUR to connect to a network.

##### Touchpad

Since 3.10.3 kernel touchpad works perfectly with xf86-input-synaptics.

##### Audio

As of Linux 3.12, sound works out of the box. If you do not get sound with only alsa-utils, you may need to create a /etc/asound.conf with below entries:

     defaults.pcm.card 1
     defaults.pcm.device 0
     defaults.ctl.card 1

#### Mid 2012 13" — version 5,2

Kernel panics using default boot media under arch kernel 3.5. Adding `intremap=off` fixes this. Additionally, there are problems loading the `applesmc` module (meaning the temperature sensors, fan, and keyboard backlight do not work). These problems are fixed in the linux 3.6-rc4 mainline kernel (I have tested).

#### Mid 2012 11.5" — Version 5,1

If you have issues with waking from sleep while in X11 such as a black screen or showing the console with a frozen mouse cursor then remove xf86-input-synaptics and install mtrack-gitAUR. This fixed errors such as

     (EE) [dix] bcm5974: unable to find touch point 0

and backtraces that causes X11 to crash. This might apply to Version 5,2 assuming they use the same trackpad.

##### Installing using the Archboot 2012.06 image

Several people have reported problems installing Arch Linux on the MBA version 5,2 (See problems booting Arch Linux on a MacBook Air Mid 2012). A common problem is that the screen is not detected and therefore goes black when the installer boots. To fix this problem one has to select the normal install (Not the LTS) during boot and press tab to edit the boot flags. Then add noapic flag to the boot line. This should fix the screen going black. Install the system as you normally would. It may help later in the configuration process if the support packages are installed already at this stage.

When the install has finished again add the noapic flag to the GRUB boot line (if you use GRUB) and also add i915.diescreaming=1 (or perhaps i915.die). This should keep the screen from going black when booting the new system. After you enter the system the wireless driver should be loaded. If you installed the support packages during installation you should have the wifi-menu command. Run it and select the network you want to use. One could also use wpa_supplicant but wifi-menu is quite fast to use at this stage. Now you are ready to upgrade the system. As of writing there have been a lot of changes to Arch Linux since the 2012.06 image of Archboot was released (filesystem and glibc). Therefore the upgrade process can be a bit difficult. The current solution has sucessfully upgraded a standart archboot version to a up-to-date version as of October 2012 and this step should be obsolete in future releases of archboot.

First ignore the new "big" changes to Arch Linux,

     pacman -Suy --ignore glibc,libarchive,curl,filesystem

If this only upgrades pacman then run the command again. Remember to make sure that pacman is ignoring the packages you do not want upgraded now. Otherwise you may break the system and have to reinstall! Now upgrade to the new filesystem,

    pacman -S filesystem --force

As described in Glibc upgrade guide there may be conflicts with installed packages that require the /lib directory. Follow the guide and remove any packages that use /lib. The stock 3.4.2 kernel from Archboot should be on this list so first upgrade this,

    pacman -S linux

This may give some errors saying that the system may not boot because of missing modules. Ignore this warning for now. The stock install may also contain gcc in the /lib directory so also remove this if needed and any other packages that have conflicts. Now Glibc should be the only package in /lib so run the system upgrade and accept all changes,

    pacman -Su

Finally reinstall the kernel so that it can find the correct modules.

Now this command should not give any errors like last time. You can also reinstall gcc at this point. After a rebooted the system should startup and the new kernel should have fixed the problem with the screen going black. If want to boot Xorg then you may need to remove the i915.diescreaming=1 line from GRUB. If not then attach a external screen and try to fix the problem that way. Some people have reported commands that may help on the forum.

#### Mid 2011 — version 4,x

Works out-of-the-box since kernel 3.2. It is recommended to use Archboot, install GRUB and use EFI.

#### Early 2008 — version 1,1

Everything works out of the box though you will need b43-fwcutter (or simply b43-firmwareAUR) for the wireless adapter to work.

Since this model has only one USB port, you may find it easiest to install Arch with a powered USB hub. Plug a USB network adapter (wireless or ethernet adapter to plug into a USB port) and your Arch installation media into the USB hub.

If you can't get any result by scanning wireless network after boot, unload modules `b43` and `ssb` and load them again:

       rmmod ssb
       rmmod b43
       modprobe b43

There is a good chance you will find what's wrong with DMA from the dmesg log.

Even if you can scan wireless networks after reloading the modules, it's still possible that you will only be able to connect to some networks, but not all of them. According to a more detailed discussion here: http://crunchbang.org/forums/viewtopic.php?id=17368, adding `pio=1,qos=0` options to the b43 module can solve this problem.

I tested this for a 13' MacBookAir1,1 with a BCM4321 chipset, and it works.

## See also

- MacBook Air
  - Macbook Air Early 2014 — dabase.com
  - Installing Archlinux on Macbook Air 2013 — Frank Shin
  - Arch Linux Installation with OS X on Macbook Air (Dual Boot) — Pankaj Kumar
  - Arch Linux – MacBook Air 2013 — Ryan Gehrig
  - Installing Linux on a Macbook Air (4,2) — Nico Schottelius
  - Arch linux single, pure efi boot on the macbook air3,1/3,2 — DIMENSION9
- MacBook Pro
  - http://www.netsoc.tcd.ie/~theorie/interblag/2010/01/30/installing-arch-linux-on-a-mac-pro/
  - http://allanmcrae.com/2010/04/installing-arch-on-a-macbook-pro-5-5/
  - http://allanmcrae.com/2012/04/installing-arch-on-a-macbook-pro-8-1/
  - http://linux-junky.blogspot.com/2011/08/triple-boot-archlinux-windows-7-and-mac.html

Category:

- Apple