It's a known problem that a received subvolume would lose its UUID after
switching to RW. Thus it can lead to later receive problems for
snapshotting and cloning.
In that case, we just output a simple error message like:
ERROR: cannot find parent subvolume
Or
ERROR: clone: did not find source subvol
Normally we need to use "btrfs receive --dump" to know what the missing
subvolume UUID is, which would take extra work.
This patch would:
- Add extra subvolume UUID to the output
- Unify the error messages to the same format
Now the error messages would look like:
ERROR: snapshot: cannot find parent subvolume 1b4e28ba-2fa1-11d2-883f-b9a761bde3fb
ERROR: clone: cannot find source subvolume 1b4e28ba-2fa1-11d2-883f-b9a761bde3fb
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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