[ovirt-users] Can't upload disk image in oVirt 4.0

Hello, I am trying to upload a RAW disk image via web GUI. After a few seconds, it enters state "paused by system". I downloaded the certificate: https://engine-fqdn/ovirt-engine/services/pki-resource?resource=ca-certif... and installed it in browser (tried Firefox and Chrome), but it didn't help. My questions are: 1. What can I do to debug the problem, as there are no error messages nor entries in system log? 2. Is there an alternative way to import a disk image? Thanks, Nikša