There are patches elsewhere in the mailing list to allow one to mount a broken-due-to-transid-mismatch filesystem readonly, which should work in this case.
Regarding your backup regimen, consider using rsync instead of dd: after the initial backup, rsync can update the existing backup _much_ more quickly, making it practical to do a backup every night, or even multiple times a day. dd also has the downside of potentially _really_ confusing btrfs if it ever sees the backup and the original at the same time. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
