On Fri, Dec 13, 2013 at 11:31:47AM -0500, Gene Czarcinski wrote: > On 12/13/2013 11:07 AM, Gene Czarcinski wrote: > >I have hunted high and low for the information but, if it is out there, > >it is well hidden. > > > >What I want to do: I want to relocate (move) a subvolume from one BTRFS > >volume to a different BTRFS volume. > > > >I have seen the writeup for incremental backup which takes a snapshot, > >and then using btrfs-send and btrfs-receive to create a copy on a > >different volume. That works fine except the btrfs-receive set the new > >copy to be readonly. > > > >What I want to do is to use that new subvolume read/write. The only way > >I have figured out to do this is to create another snapshot on the new > >volume which is NOT readonly. I believe that means I need to keep both > >of these subvolumes around. > > As soon as I sent this I believe I found the answer. > > I was sort of right about creating the new read-write (NOT readonly) > snapshot. After it is created simply delete the one which was created by > btrfs-receive.
ATM, this is the way to do it. There's an ioctl to toggle the RO/RW status of a subvolume, so it could save you one snapshot, but there's not tool support to do that. I hope this will be possible with the upcomming 'per-object properties' feature. david -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
