I am wondering whether Grub2 has any btrfs support for multiple root
subvolumes. It appears it might be able to handle writing a grub.cfg
that would reboot into the current root partition if the partition is
btrfs (though, not sure).
The grub-mkconfig code seems confused by btrfs:
1) It assumes a device has a single filesystem
2) It steps through devices, then maps device to mount point
3) 30_os-prober has some code for btrfs from os-prober output, but I
don't see where os-prober will generate such entries
It would be nice if it would be able to generate a grub.cfg that could
boot into any subvolume that was bootable:
1) Recognize btrfs filesystem
2) Temp mount subvol=. if not already mounted
3) Run os-detector on each subvol
Does this not work?
--
-Justin
[email protected]
