I am trying to find a way to run my Macbook Air 2013-mid from the external media (usb) containing Persistent Ubuntu 16.06, see here for the creation of the stick:
- Fixing the EFI partition
- Update filesystem table
- Installing GRUB
but the problem is that I cannot run any live system on Macbook Air. I cannot get the SSD out without Apple service. The following is the process about how I would proceed after successfully managing to mount OS X SSD in any system.
Fixing the EFI partion in Macbook Air 2013-mid
The system has UEFI (some firmware here), but OSX expects EFI bootloader be formatted as HFS+ (see Fixnig the EFI partition here). Problem is that I cannot run live media in Macbook air and do
sudo add-apt-repository ppa:detly/mactel-utils
sudo apt-get update
sudo apt-get install mactel-boot hfsprogs gdisk grub-efi-amd64
mount % see the sd[]; here sd1
sudo umount /dev/sda1
sudo gdisk /dev/sda % delete VFAT, create HFS+
% delete EF00 partion there with `d`
% create HFS+ partion there with `n`
% enter filesystem option `AF00`
% write with `w`
% now you have unformatted HFS+ so format it with
sudo mkfs.hfsplus /dev/sda1 -v Ubuntu
Updating filesystem table
sudoedit /etc/fstab
sudo bash -c 'echo $(blkid -o export -s UUID /dev/sda1) /boot/efi auto defaults 0 0 >> /etc/fstab'
sudo mount /boot/efi % testing
Installing GRUB
sudo mkdir -p "/boot/efi/EFI/$(lsb_release -ds)/"
%% BUG in GRUB but two following lines can soon be omitted
sudo bash -c 'echo "This file is required for booting" > "/boot/efi/EFI/$(lsb_release -ds)/mach_kernel"'
sudo bash -c 'echo "This file is required for booting" > /boot/efi/mach_kernel'
sudo grub-install --target x86_64-efi --boot-directory=/boot --efi-directory=/boot/efi --bootloader-id="$(lsb_release -ds)"
sudo hfs-bless "/boot/efi/EFI/$(lsb_release -ds)/System/Library/CoreServices/boot.efi"
Boot as UEFI
To setup EFI boot in Mac, is described here about https://glandium.org/blog/?p=2830 in the same HD as your Mac installation. This setup is different from booting from the live Ubuntu. I have not managed to do this. TODO
This can be the solution to the problem, see the thread here about UBUNTU + MAC: PURE EFI BOOT.
How can you Mount OS X SSD in Live Ubuntu?
How can you Start Persistent Ubuntu 16.04 in Macbook?
