Archinstall unmounts the ESP before the Omarchy finalizer runs, leaving /boot empty in the target chroot. Mount it so Limine setup can access the generated configuration and EFI artifacts.
The installed ESP uses root-only masks while finalization runs as the target user. Mount it temporarily with fmask=0022,dmask=0022 and verify the target user can traverse /boot; the installed fstab remains unchanged.
Remove the fallback shell from the installer invocation so finalizer errors propagate instead of reporting a completed installation and rebooting a partially configured system.
David Heinemeier Hansson
7e830d6a28