Re: lvm and snapshot?

[Dave Alden <alden math ohio-state edu>]

Hi,

On Fri, Mar 18, 2005 at 10:42:01PM +0000, Stephen Gardner wrote:
> On Fri, 18 Mar 2005, Dave Alden wrote:
> 
> > Am I missing something -- does lvm2 under rhel not support snapshots?
> 
> Dave,
> 	RHEL4 / LVM2 does support snapshotting. I have successfully used 
> commands similar to
> 
> lvm lvcreate -L 500M -s -n snap-data /dev/VolGroup01/LogVol00
> [ or just lvcreate in LVM1 syntax ]

Hmm, any ideas what I might be missing:

# lvm lvcreate -L 500M -s -n snap-data /dev/vg0/lv0
  snapshot: Required device-mapper target(s) not detected in your kernel
  lvcreate: Create a logical volume

[...]

Help?

...thnx,
...dave