Re: [Xen-users] Zero LVM

[Thomas Ronner <thomas@xxxxxxxxxx>]

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




Regards,
Thomas

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