i had the same problem , and commenting out the DISPLAY variable and adding the -X to the delayed mount script solved the problem
-- Local devices don't work because an X11 authentication problem https://bugs.launchpad.net/bugs/160420 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs