I think that is only necessary for UEFI installations. I was able to do this earlier with extlinux[1]. This mentions a stackexchange question that suggests btrf

I think that is only necessary for UEFI installations. I was able to do this earlier with extlinux[1]. This mentions a stackexchange question that suggests btrfs installations are possible in the same fashion[2]. [1] curl https://wiki.archlinux.org/title/Syslinux https://wiki.archlinux.org/title/Syslinux | grep partitionless [2] https://unix.stackexchange.com/questions/103501/boot-partiotionless-disk-with-syslinux https://unix.stackexchange.com/questions/103501/boot-partiot...