Hi everyone! (I use kernel 3.7.1 and mason/btrfs-progs.git head + the receive lchown patch [1]. Is there a more up to date btrfs-progs repo for send/receive enthusiasts?) What I'm trying is basically: # Transfer a snapshot of my old system from a backup to the new system btrfs send /mnt/bak/.snap | btrfs receive / # OK # Merge the old system's files with the new system's files btrfs subvolume snapshot /.snap /.snap-merge # OK mkdir /.snap-merge/.old # OK mv /.snap-merge/* /.snap-merge/.old # OK cp -a --reflink /* /.snap-merge # OK btrfs subvolume snapshot -r /.snap-merge /.snap-merge-done # OK # Incrementally transfer the merged files back to the backup drive btrfs send -p /.snap /.snap-merge-done | btrfs receive -p /mnt/bak The last step fails due to the changed direction of the transfer. "ERROR: could not find parent subvolume". It seems like btrfs receive cannot find the parent/clone source because it is searching for its UUID only by looking through the /mnt/bak snapshots' received_uuid fields. Is there a way for me to directly change the received_uuid of /mnt/bak/.snap to make it identical to the UUID of /.snap? This looks like the easiest way if I only need to do it once. [1] https://patchwork.kernel.org/patch/1606091/ -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
