Re: [Xen-users] Zero LVM

[Jonathan Tripathy <jonnyt@xxxxxxxxxxx>]

On 06/12/10 16:39, Thomas Ronner wrote:
> Hi Jonathan,
>
> On 12/6/10 5:24 PM, Jonathan Tripathy wrote:
> > Hi Everyone,
> >
> > When providing Xen guests to cutomers, it is important to make sure 
> > that the LVM LV is "zeroed" before use. What is the correct syntax to 
> > do this?
> > I've tried:
> >
> > dd if=/dev/zero of=/dev/vg0/lvname
> >
> > however this seems to go on forever (unless my test machine is just 
> > slow!)
> > Any ideas?
> That command will use a default block size of 512 bytes which takes, 
> indeed, forever. Try:
> dd if=/dev/zero of=/dev/vg0/lvname bs=1M
Thanks for that!

I'm now getting No space left on device. I'm guessing I have to use a 
count parameter. What value would I set it at?
Thanks

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