It's looking like the change I made for bug 436936 might be the culprit, but I am unable to recreate this issue at present.
Please could follow the steps below to run Upstart in debug mode: 1. Hold down SHIFT key before the splash screen appears (this will then display the grub menu). 2. Type, "e" to edit the default kernel command-line. 3. Use the arrow keys to go to the end of the line which starts "linux /boot/vmlinuz ...". 4. Press END key (or use arrows) to go to end of the line. 5. Add a space followed by "--debug" (note the two dashes). 6. Press CONTROL+x to boot with this modified kernel command line. This will tell upstart to log debug info to /var/log/syslog. So, once you can login, please run this: grep init: /var/log/syslog |gzip -9 > /tmp/bug-735805-syslog.txt.gz And then attach that file to this bug. It would also be useful if you could also attach a copy of your udev log: gzip -9 -c /var/log/udev > /tmp/bug-735805-udev.txt.gz Thanks in advance. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/735805 Title: GDM fails to start -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
