1
How do you get the top level subvolid of a mounted btrfs? I want the actual subvolid that is mounted at this moment and not the default subvolid (which could be different.)
1
How do you get the top level subvolid of a mounted btrfs? I want the actual subvolid that is mounted at this moment and not the default subvolid (which could be different.)
0
Look at /proc/mounts
or the output of mount
, the subvolid is always listed in the mount options.
/dev/loop0 /mnt/btrfs btrfs rw,relatime,space_cache,subvolid=5,subvol=/ 0 0
^^^^^^^^^^