[virt-tools-list] How to resize a partition in a KVM image? (after the image is resized by "qemu-img resize")

[Eric Blake]

On 05/02/2014 11:10 PM, Peng Yu wrote:
> Hi,
> 
> A KVM guest had the following root partition.
> 
> Filesystem                    Size  Used Avail Use% Mounted on
> /dev/mapper/mintaka--vg-root  3.7G  3.3G  134M  97% /
> 
> After the guest was shutdown, I run "qemu-img resize" to resize the
> image. And I got the following.

Rather than using low-level 'qemu-img resize', I highly suggest that you
use the high-level 'virt-resize' from libguestfs.  It does a LOT more of
the necessary steps through the entire stack all in one operation
(larger underlying device, updated partition table, resized LVM
partitions, resized filesystems within the partitions, ...).

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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