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Install Archlinux on Mac mini 2,1

Note : on the mac mini 2,1 only grub seems to work for booting linux 64bit sys with UEFI 32bit, systemd-boot is apprently not working on UEFI 32 bit.

On the usb live you can start sshd to connect just:

  • setup a root password
  • enter export TERM=vt100 to have full functional keyboard
  • launch dhcpcd to have an internet connection

You have to build bootia32.efi with grub and place it in /efi/boot, grub will generate a grub.efi so you have to renameit to bootia32.efi

Prepare Archlinux livs USB stick

Create partition

Just create the partitions for ARchlinux as usual, nothing specific, here hence the mac EFI partition will be mount in the /boot part of arch.

Copy iso image

Grab the last archlinux iso image, and modify it with the great tool provide by Matt Gadient. You can find this tool and process to excute it on his page : https://mattgadient.com/linux-dvd-images-and-how-to-for-32-bit-efi-macs-late-2006-models/

Install and configure grub

Mount efi partition in /tmp/ESD and install grub on it : sudo grub-install --target=i386-efi --removable --boot-directory=/tmp/ESD/boot/ --efi-directory=/tmp/ESD

Add to /mnt/ESD/efi/boot/grub.cfg :

    insmod part_gpt
    insmod part_msdos
    insmod fat

    insmod all_video

    insmod font

    if loadfont "${prefix}/fonts/unicode.pf2" ; then
        insmod gfxterm
        set gfxmode="1024x768x32;auto"
        terminal_input console
        terminal_output gfxterm
    fi

    menuentry "Arch Linux archiso x86_64 UEFI USB" {
        set gfxpayload=keep
        search --no-floppy --set=root --label ARCH_YYYYMM
        linux /arch/boot/x86_64/vmlinuz archisobasedir=arch archisolabel=ARCH_YYYYMM add_efi_memmap
        initrd /arch/boot/intel_ucode.img /arch/boot/x86_64/archiso.img
    }

Rename /mnt/ESD/efi/boot/grub.efi to /mnt/ESD/efi/boot/bootia32.efi

Refer to this guide (part Booting 64-bit kernel on 32-bit UEFI) to get things work : https://wiki.archlinux.org/index.php/Unified_Extensible_Firmware_Interface#UEFI_bootable_media

Install Archlinux with live USB stick created

Boot to your USB archlinux, and pacstrap Archlinux. Final step is to install grub in the EFI mac partition that you will have mount on /boot/efi.

Proceed with those commands :

  • grub-install --target=i386-efi --efi-directory=/boot/efi --bootloader-id=BOOT --recheck --debug
  • grub-mkconfig -o /boot/grub/grub.cfg

Refer to this more detailed guide here : https://wiki.archlinux.org/index.php/Mac#Post-installation (Installing GRUB to EFI partition)