Ubuntu
os-prober package

  1. Bug #887836
  2. Comment #18

Comment 18 for bug 887836

Revision history for this message
Vishal Rao (vishalrao) wrote :

As of Ubuntu Jammy , it appears the issue is os-prober not handling btrfs subvolumes other than the main ID 5 subvol... So if another OS is installed with /@ as root , it does not recognise it.

See https://aur.archlinux.org/cgit/aur.git/tree/os-prober-btrfsfix.patch?h=os-prober-btrfs for the Arch version of the patch (also attached)