Re: A Plumber???s Wish List for Linux

2011-10-10 Thread David Sterba
On Fri, Oct 07, 2011 at 04:21:37PM +0100, Hugo Mills wrote: > On Fri, Oct 07, 2011 at 02:46:23PM +0200, Kay Sievers wrote: > > On Fri, Oct 7, 2011 at 12:38, Alan Cox wrote: > > > On Fri, 7 Oct 2011 12:28:46 +0200 Kay Sievers > > > wrote: > > > > > >> What do you mean would be ugly? > > > > > > I

Re: A Plumber???s Wish List for Linux

2011-10-10 Thread Theodore Tso
On Oct 10, 2011, at 7:18 AM, David Sterba wrote: > "Resetting the UUID on btrfs isn't a quick-and-easy thing - you have to > walk the entire tree and change every object. We've got a bad-hack in > meego that uses btrfs-debug-tree and changes the UUID while it runs > the entire tree, but it's ugly

Re: A Plumber???s Wish List for Linux

2011-10-12 Thread Dave Chinner
On Mon, Oct 10, 2011 at 09:09:37AM -0400, Theodore Tso wrote: > > On Oct 10, 2011, at 7:18 AM, David Sterba wrote: > > > "Resetting the UUID on btrfs isn't a quick-and-easy thing - you > > have to walk the entire tree and change every object. We've got > > a bad-hack in meego that uses btrfs-debu

Re: A Plumber???s Wish List for Linux

2011-10-14 Thread Ted Ts'o
On Thu, Oct 13, 2011 at 11:28:39AM +1100, Dave Chinner wrote: > Yup. xfs_admin already provides an interface for offline > modification of the UUID for XFS filesytems. I.e. clone the > filesytem using xfs_copy, then run xfs_admin -U generate to > generate a new uuid in the cloned copy before you m