[linux-lvm] how to enlarge a logical volume that is a virtual disk of a virtual machine that uses lvm too?

Bryn M. Reeves bmr at redhat.com
Mon Mar 9 12:05:36 UTC 2009

Alex Brett wrote:
> I'm not sure if you could do it online or not (I can't see any
> reason why not, but there may be issues), but you should just be
> able to resize the LV (lvresize) in dom0 (obviously make sure you
> enlarge it, not shrink it), then do a pvresize in the VM to enlarge
> the PV to use all

Depending on the type of device and whether it is partitioned or not
it may not be possible to have the guest recognise the new size of the
device without a reboot.


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