Macbook Air Mid 2011 - Stuck in Grub Prompt

Hi Archers,
I am trying to install Arch on an Mid 2011 Macbook Air. So far it looks ok, I am following the Wiki and this guide. The bootloader stuff is confusing me a little. I do not want to replace the bootloader from OSx, so I do not use rEFInd, right? I want to use the "Press alt while booting"-method, so does the above guide.
First problem:
While generating the standalone "boot.efi" file the "-C" option is not recognized.
grub-mkstandalone -o boot.efi -d usr/lib/grub/x86_64-efi -O x86_64-efi -C xz boot/grub/grub.cfg
It complains that -C is not a valid parameter, so I just skipped it.
After deleting the boot partition in OSx and creating the directories and files and copying the boot.efi file I am able to boot from this partition. Problem #2: After booting the partition I am stuck in a Grub prompt. It recognizes HD0 and 1 and after fiddling around with
ls (hd0)
ls (hd1)
ls (hd0,4)
It always complains about an unrecognized partition type.
Any help appreciated. Will I get it working in this state?
Booting from USB and installing the base system worked like a charm, I have a feeling I nearly got it but the bootloader stuff is just plain confusing.
Thanks in advance.
Last edited by Urfaust (2014-01-29 18:55:29)

Ok, I cannot find another guide which uses the OSx Bootloader. I installed rEFInd, reformated /boot with mkfs.ext2, chrooted to the base system and:
# pacman -S grub-efi-x86_64
# mkdir -p /boot/efi
# mount -t vfat /dev/sda1 /boot/efi
# 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
The boot partition is recognized in rEFind, if I choose to boot from it Grub is firing up, I can see 2 menu entries (normal and fallback) after choosing the first I get:
error: no such device: someUID
Loading Linux core repo kernel ...
error: no such partition
Loading initial ramdiks ...
unaligned pointer 0x22
Aborted. Press any key to exit
Why won't Grub find the partition?
Last edited by Urfaust (2014-01-30 16:14:39)

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