I had this same problem, and after doing some research I was able to fix it on my system.
After the error message I would be at a command prompt in a maintenance mode. Before I could write to fstab I had to run this command: mount -o remount,rw / After that, edit /etc/fstab and comment out the line with that starts with devpts. Hope this works for everyone else. -- Mount of root filesystem failed https://bugs.launchpad.net/bugs/468450 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs