[linux-lvm] pvmove wont work

AJ Lewis alewis at redhat.com
Mon Aug 30 15:46:45 UTC 2004

On Sat, Aug 28, 2004 at 10:34:25PM +0100, Rupert Hair wrote:
> Quoting Andreas Dahlgren <andreas.dahlgren at home.se>:
> > Just upgraded to and got much less errors but pvmove still wont
> > work.
> > # pvmove -t /dev/hdc
> >   Test mode: Metadata will NOT be updated.
> >   mirror: Required device-mapper target(s) not detected in your kernel
> >
> > anyone knows why this wont work?
> Hi Andreas,
> I think I posted exactly the same quiestion to the list some time ago.  The
> answer is that you need the Device Mapper Mirror Target compiled into (or as a
> module in) your kernel.  You will need to get the "unstable" patches from the
> following URL:
> http://sources.redhat.com/dm/patches.html
> Feel free to mail me if you need any more info on this.

Erm...the mirror target is available in now I believe - you just need
to make sure it's enabled in your .config when you compile your kernel.  I
believe the dm-mirror target is all that's required for pvmove.

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