Noticed this after I migrated a KVM container which was using LVM, on Ubunt14.04 LTS for the host node, /etc/lvm/lvm.conf needs the following modified to prevent the host OS from freaking out
Code
# By default we accept every block device:
filter = [ "a/sda/", "r/.*/" ]
This node only has a /dev/sda block device, but edit as needed if you have more than a single block device