Re: [Libguestfs] missing btrfs subvol support

On Fri, Oct 10, Richard W.M. Jones wrote:

We use Augeas to parse the /etc/fstab btrfs entries, see src/inspect-fs-unix.c: check_fstab:

https://github.com/libguestfs/libguestfs/blob/master/src/inspect-fs-unix.c#L...

And we then pass the subvol back to the mount command in daemon/mount.c (which doesn't alter it).

https://github.com/libguestfs/libguestfs/blob/master/daemon/mount.c#L154

Something between add_fstab_entry and the actual mount call removes the '@/'. My debug() shows: add_fstab_entry(1048): fstab: mountable=btrfsvol:/dev/sda2/@/var/spool mountpoint=/var/spool libguestfs: check_for_filesystem_on: btrfsvol:/dev/sda2/var/spool (btrfs) So 'fs->fstab[].mountable' gets tweaked somewhere. Olaf