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Re: [Xen-users] Wrong size on a domU partition


  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "Fajar A. Nugraha" <list@xxxxxxxxx>
  • Date: Sun, 20 Mar 2011 13:51:59 +0700
  • Delivery-date: Sat, 19 Mar 2011 23:52:55 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

On Sun, Mar 20, 2011 at 5:55 AM, Simon Hobson <linux@xxxxxxxxxxxxxxxx> wrote:
>> > I create the file with this command
>>>
>>> dd if=/dev/zero of=/xen/domains/SRV03/opt-disk.img bs=1024k seek=30720
>>>  count=30720

> The command should be :
> dd if=/dev/zero of=/xen/domains/SRV03/opt-disk.img bs=1024k seek=30719
> count=1
>
> This will seek to 1M under 30G (( 30 * 1024 ) - 1 ), and then write 1M of
> zeros.

... or simply

dd if=/dev/zero of=/xen/domains/SRV03/opt-disk.img bs=1024k seek=30720 count=0

that way no actual write needs to occur, but you get the same result.

-- 
Fajar

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