Hello, I can't upgrade to 4.2.6 it doesn't have the base layer and I have to "lvremove /dev/onn/ovirt-node-ng-4.2.6.1-0.20180913.0+1" In imgbased.log I get 2018-09-13 13:55:45,106 [ERROR] (MainThread) Failed to migrate etc Traceback (most recent call last): File "/tmp/tmp.NqH2wp0Zty/usr/lib/python2.7/site-packages/imgbased/plugins/osupdater.py", line 118, in on_new_layer check_nist_layout(imgbase, new_lv) File "/tmp/tmp.NqH2wp0Zty/usr/lib/python2.7/site-packages/imgbased/plugins/osupdater.py", line 209, in check_nist_layout v.create(t, paths[t]["size"], paths[t]["attach"]) File "/tmp/tmp.NqH2wp0Zty/usr/lib/python2.7/site-packages/imgbased/volume.py", line 48, in create "Path is already a volume: %s" % where AssertionError: Path is already a volume: /var/log Regards, Paul S.