[libvirt-users] Resizing lvm fails with fedora20

[Michal Privoznik]

On 11.01.2015 02:57, Alex Regan wrote:
> Hi,
> I'm trying to resize a 15GB LVM root partition on a fedora20 server with
> a fedora20 guest and I'm having a problem. Is this supported on fedora20?
>
> I recall having a similar problem (maybe even exact same problem) all
> the way back in fedora16 or fedora17, but hoped/thought it would be
> fixed by now?
>
> # virt-df -h test1-011015.img
> Filesystem                          Size       Used  Available  Use%
> test1-011015.img:/dev/prop/boot  476M       109M       338M   23%
> test1-011015.img:/dev/prop/root   14G        10G       3.3G   72%
>
> # truncate -s 50G newimg
> # virt-resize test1-011015.img newimg --expand /dev/sda1 --LV-expand
> /dev/prop/root
> Examining test1-011015.img ...
> virt-resize: libguestfs error: lvm_set_filter: vgchange -ay:
> /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    WARNING: Failed to connect to lvmetad: No such file or directory.
> Falling back to internal scanning.
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    Couldn't find device with uuid uA2ju5-EElD-xgB3-EE7J-gJ55-UnkY-Vq2l6H.
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    /run/lvm/lvmetad.socket: connect failed: No such file or directory
>    Refusing activation of partial LV home. Use --partial to override.
>

I thought this has been already fixed:

https://bugzilla.redhat.com/show_bug.cgi?id=1016218

> What are my alternatives for resizing a root partition on LVM?

I guess updating lvm2. Seems like you won't be able to use pure vgchange 
and do thing by hand anyway.

Michal