When I have inserted a device recorded with a GuixSD image in my Late
2009 iMac (EFI, not UEFI) during boot, the computer gets stuck in a
loop and doesn't respond. I believe this is due to a lack of, or
duplication, of UUIDs (not to be confused with PARTUUIDs) on some
partitions, as manually assigning them allows my computer to properly
detect the attached devices and boot from the GuixSD one (although not
successfully).
> udisksctl loop-setup -rf guix-system-install-1.0.1.x86_64-linux.iso
Mapped file guix-system-install-1.0.1.x86_64-linux.iso as /dev/loop0.
> sudo blkid -o list | grep ^/dev/loop0 | cut -d" " -f1 | sort
/dev/loop0
/dev/loop0p1
/dev/loop0p2
/dev/loop0p3
/dev/loop0p4
> sudo blkid -s UUID | grep ^/dev/loop0
/dev/loop0: UUID="1970-01-01-19-49-46-83"
/dev/loop0p2: UUID="C920-B8AE"
