Partition layout

  • sda1: Existing EFI boot Partition
  • sda2: Existing OSX installation
  • sda3: Existing Recovery partition
  • sda4: New /boot partition
  • sda5: New encrypted lvm partition for swap and /

Detailed guide

I followed this guide ➡

General links

These pages were also helpful:

General steps

  1. Unencrypt (if not already) OSX partition to resize and make space for Ubuntu.
  2. Download Ubuntu image: and make bootable usb disk.
  3. Boot usb disk and choose ‘Try Ubuntu’ option.
  4. Create an ext2 /boot partition (~512M should be plenty) and an ext4 partition to hold the lvm partition.
  5. Create encrypted luks partition with LV’s for Ubuntu installation / and encrypted swap (at least size of RAM, slightly bigger for hibernation -
  6. Unmount any mounted partitions that will be used in the install.
  7. Run the installer manually specifying the /boot partition in step 4 and the LV’s created for / and swap in step 5, without rebooting or installing a bootloader, and exit installer.
  8. Set up a UEFI bootloader. There are lots of ways to do this. I use systemd-boot, which works fine. Ubuntu mounts the EFI partition (sda1) at /boot/EFI.



bootctl install --path=/boot/efi
efibootmgr -c -d /dev/sda1 -p 1 -l EFI/systemd/systemd-bootx64.efi -L "Linux Boot Manager"

Grub EFI

apt install grub-efi
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=grub
grub-mkconfig -o /boot/grub/grub.cfg


sudo apt-add-repository ppa:rodsmith/refind
sudo apt update
sudo apt install refind

Notes, fixes and tweaks

Hardware revision

sudo dmidecode -s system-product-name


Fix wifi

Alternative wifi firmware (wrong drivers for my mac, but might work on yours)

sudo apt remove --purge bcmwl-kernel-source
sudo apt install firmware-b43-installer

Change keyboard fn key behaviour

Fn keys by default, fn+ for multimedia keys:

echo 2 | sudo tee /sys/module/hid_apple/parameters/fnmode

Swap cmd and alt keys:

echo 1 | sudo tee /sys/module/hid_apple/parameters/swap_opt_cmd

Clone repo at and install:


Put options in /etc/modprobe.d/hid_apple.conf

options hid-apple iso_layout=1
options hid_apple fnmode=2
options hid_apple swap_opt_cmd=0
options hid_apple swap_fn_leftctrl=1
options hid_apple ejectcd_as_delete=0
sudo update-initramfs -u -k all

Fix usb at boot

echo XHC1 > /proc/acpi/wakeup

Fix Suspend issue

Recompile patched kernel source

Kernel patch here:

sudo apt-get build-dep linux-image-$(uname -r)
fakeroot debian/rules clean
DEB_BUILD_OPTIONS=parallel=2 fakeroot debian/rules binary-headers binary-generic

More info,x#Suspend

Backlight issues

LightDM dpi