Public bug reported: The kernel update from this morning (2007-Dec-21) changed GRUB's menu.lst in a very marginal but still very crucial way: it messed with my root= boot flag:
<cut> --- a/menu.lst 2007-12-22 00:22:19.729646249 +0100 +++ b/menu.lst 2007-12-22 00:22:07.728962370 +0100 @@ -129,13 +129,13 @@ title Ubuntu 7.10, kernel 2.6.22-14-generic root (hd0,1) -kernel /vmlinuz-2.6.22-14-generic root=UUID=926efc98-7e18-4599-9e26-71cbbdd853c7 ro quiet splash +kernel /vmlinuz-2.6.22-14-generic root=UUID=52bb200c-f962-40a9-9200-bc1ce963210b ro quiet splash initrd /initrd.img-2.6.22-14-generic quiet title Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode) root (hd0,1) -kernel /vmlinuz-2.6.22-14-generic root=UUID=926efc98-7e18-4599-9e26-71cbbdd853c7 ro single +kernel /vmlinuz-2.6.22-14-generic root=UUID=52bb200c-f962-40a9-9200-bc1ce963210b ro single initrd /initrd.img-2.6.22-14-generic title Ubuntu 7.10, memtest86+ </cut> My root partition's vol_id is 926efc98-7e18-4599-9e26-71cbbdd853c7, and this value was in menu.lst before the upgrade. After the upgrade, the value in menu.lst (for both the "normal" boot entry and the recovery mode) had changed to 52bb200c-f962-40a9-9200-bc1ce963210b. None of the partitions on this laptop has this vol_id; i can only guess, but maybe some partition on the test/packaging system for the kernel upgrade has a partition with this vol_id. I simply booted up using the Live CD, determined the correct(!) vol_id for my root partition, manually mounted the boot partition and changed /boot/grub/menu.lst accordingly. Now, everything is back to normal. I consider classifying this as a serious bug since it makes systems unbootable. ** Affects: linux-meta (Ubuntu) Importance: Undecided Status: New -- Kernel upgrade changes root= boot parameter to non-existing UUID https://bugs.launchpad.net/bugs/178015 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