I reinstalled kernel 3.2.0-31-generic-pae and changed the boot options as described on the wiki.
The first thing to note is that when I edit the boot options, the system boots up successfully most of the time (it seems to boot successfully more often than if I just leave grub to run without interruption, but maybe that is just down to luck when I tried both methods a number of times this morning). As per the wiki, is removed the quiet, splash, and vt.handoff options, and set gfxmode to text. Having done this, on an occasion when the problem reoccurred, the screen just went blank (and stayed that way) immediately after pressing Ctrl+x from the grub edit options menu. So I was unable to see any error messages. I retried booting with acpi=off (as suggested in the Wiki) in addition to the other changes. This time I got screensfull of messages, and, eventually (after about 50s) got dropped into an Initramfs shell. The final screen of messages showed some errors, as shown in the attached screenshot. Whether these are related to the original problem, or just due to me turning off acpi, I don't know. ** Attachment added: "20121002_115055.jpg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058969/+attachment/3364649/+files/20121002_115055.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1058969 Title: Kernel 3.2.0-31 fails to boot from grub To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1058969/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
