Use DiskFile to allow testing missing dependencies as non-root.
Use DiskFile to allow testing missing dependencies as non-root.

The part of the test that requires root is guarded appropriately.

vojtechtrefny/blivet,rvykydal/blivet,jkonecny12/blivet,rvykydal/blivet,vojtechtrefny/blivet,jkonecny12/blivet