Created attachment 1085144 [details] engine log Description of problem: Tried adding an NFS storage domain with the following mount options: sync,rw,no_subtree_check,all_squash,anonuid=36,anongid=36 Version-Release number of selected component (if applicable): rhevm-3.6.0-0.18.el6.noarch How reproducible: 100% Steps to Reproduce: 1. Navigate to Storage tab 2. Click on New Domain button 3. Input Export Path, Name 4. Under Custom Connection Parameters > Additional mount options, input: sync,rw,no_subtree_check,all_squash,anonuid=36,anongid=36 5. Click OK Actual results: Operation Canceled window pops up with message: Error while executing action Add Storage Connection: Problem while trying to mount target Expected results: NFS Domain is successfully created Additional info: Works if mount options are only: sync,rw Attached log