I also had this issue. I recently installed Ubuntu 14.04.4 using LVM. /tmp was on its own logical volume.
I am using this computer as as LTSP server. When the client image is built it used the permissions of /tmp prior to being mounted drwxr-xr-x (755). /tmp should have a permission of drwxrwxrwt (1777) even if it gets mounted over. This wrong permission allowed the LTSP clients to boot but after a successful login, the client would never see the desktop but were sent back to the login screen. Changing the permissions of the client /tmp to 1777 fixed this issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/371236 Title: Underlying /tmp directory has wrong permissions when hidden by mount point To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/371236/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
