[libvirt-users] Re-sizing qcow2 images

[Hristo Deshev]

On 10/28/2012 04:43 AM, Chandana De Silva wrote:
> Hello All,
>
> I am using Centos 6.3 with libvirt 0.910 and qemu-kvm 0.12
>
> I had to resize a qcow2 disk, and came across several issues;
>
> I used this command to resize the image:
>
> sudo -i /usr/bin/qemu-img /var/lib/libvirt/images/mydisk.img resize
> +100G . The disk is attached using virtio.

For my resizes I use libguestfs's virt-resize [1] tool. It's been
working flawlessly so far -- it resizes both the image file/device and
partitions inside that image. I can't recommend it enough.

Best,
Hristo

[1] http://www.libguestfs.org/virt-resize.1.html