Re: [linux-lvm] LVM2-Snapshot

[Joe Thornber <thornber redhat com>]

On Wed, Mar 10, 2004 at 05:30:02PM +0100, Christoph Pleger wrote:
> Hello,
> 
> I have problems when I try to create a snapshot of a logical volume
> under LVM2 (Kernel 2.6.3). I get the following messages after using
> "lvcreate -s -l 227 -n snap /dev/vg1/lv1":
> 
> device_mapper ioctl cmd 9 failed: Invalid argument
> Couldn't load device 'vg1-snap'.
> Problem reactivating origin lv1
> 
> 
> How can I solve that?
> 
> Using google, I found that snapshots under LVM2 and Kernel 2.6 generally
> do not work. I hope that that is no longer true, is it? 

The snapshot target isn't in vanilla 2.6 yet, use my udm (unstable dm)
tree if you want that functionality.

http://people.sistina.com/~thornber/dm/

I _hope_ to submit this to lkml within the next month.

- Joe