[CentOS] Resizing a Xen DomU disk image
Alain Spineux
aspineux at gmail.com
Wed Dec 19 18:48:53 UTC 2007
On Dec 19, 2007 7:26 PM, Matthew Lind <mlind at nhctc.edu> wrote:
> Hello Mailing List!
>
> A quick question. Has anyone gotten a resize (in my case grown) a Xen
> DomU disk image?
>
> Here is the procedure I have followed:
>
> 1. Install a DomU using virt-install
> Customize xvda to be all one partition ext3
> 2. On Dom0:
> dd if=/dev/zero bs=1G count=1 >> <my_disk_image>
> ll -h (Image is now 1GB larger)
> xm create <DomU>
> On DomU:
> df -h (Size has not changed)
> shutdown -h now
> On Dom0:
e2fsck works only on device, but yuo can creat a loop device using losetup
someting like
losetup -f <my_disk_image>
now you can mount, e2fsck or resize /dev/loop0
> e2fsck -f <my_disk_image> (Errors Bad Magic...)
> resize2fs -f <my_disk_image> (Errors Bad Magic...)
then delete the loop device
losetup -d /dev/loop0
regards
> xm create <DomU>
> On DomU:
> df -h (Still reports old size)
>
> I am assuming that because resize2fs didn't run that the DomU doesn't
> know about the additional space.
>
> Thanks in advance!
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>
--
Alain Spineux
aspineux gmail com
May the sources be with you
More information about the CentOS
mailing list