What snapshot targets does your kernel contain? (run 'dmsetup targets' and check for a line starting 'snapshot-merge')
(Error messages got improved in later upstream releases.) Check your kernel message log for any related errors. Run the command with -vvvv for more detailed information about what's going wrong. Alasdair -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

