Install HA on old laptop without UEFI

Configuration
30

@dbrand666 BTW you don’t even need to create a new partition. I’ve used the EFI boot partition (/dev/sda1) to install GRUB files there on APU2, worked like a charm.

  • Boot APU into some Linux live USB (I’ve used SysrescueCD)
  • dd the HAOS image to APU’s internal SSD (or from where you boot it), /dev/sda in my case
    xzcat haos_generic-x86-64-9.4.img.xz | dd of=/dev/sda bs=1m
  • Mount /dev/sda1 (EFI boot partition) to /mnt
    mount /dev/sda1 /mnt
  • grub-install --boot-directory=/mnt/boot --force /dev/sda

Then just create a /mnt/boot/grub/grub.cfg with the following content:

set root=(hd0,gpt1)
configfile (hd0,gpt1)/efi/boot/grub.cfg
  • Unmount /mnt, take bootable USB out and reboot
  • Done, HAOS booting
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