I can confirm this bug for Kubuntu. Like the bug reporter the upgrade was performed without any errors or warnings shown. After reboot, a grub rescue prompt was shown:
error: file not found. grub rescue> _ Luckily, I already have a usb rescue disc handy. A simple grub-install command solves the error. All my grub menu entries are restored and the system boots properly again. I have experienced this error at least the last 4 times I upgraded my kubuntu installation. I upgraded 2 weeks ago from oneiric to precise, and last week from precise to quantal. Harddisk configuration /dev/sda is a Maxtor drive on an addon pci card using a silicon image 3531 serial ata controller /dev/sdb is a Samsung drive on an onboard Nvidia mcp51 serial ata controller output of df $ df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sdb9 19198676 17279464 943956 95% / udev 1528136 4 1528132 1% /dev tmpfs 616484 908 615576 1% /run none 5120 0 5120 0% /run/lock none 1541204 80 1541124 1% /run/shm none 102400 0 102400 0% /run/user /dev/sda3 243056000 220903612 22152388 91% /home /dev/sdb8 960504 88060 823652 10% /boot /dev/sdb5 10231392 6068784 4162608 60% /media/personal Now that I look at this it strikes me as strange that my root and boot dirs are on /dev/sdb, which is on the motherboard sata controller. Could it be that the ubuntu-release-upgrader installs grub on the wrong drive? output of some more stuff /dev/disk/by-path$ ll total 0 lrwxrwxrwx 1 root root 9 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0 -> ../../sdb lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0-part1 -> ../../sdb1 lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0-part2 -> ../../sdb2 lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0-part3 -> ../../sdb3 lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0-part5 -> ../../sdb5 lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0-part6 -> ../../sdb6 lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0-part7 -> ../../sdb7 lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0-part8 -> ../../sdb8 lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:00:0e.0-scsi-0:0:0:0-part9 -> ../../sdb9 lrwxrwxrwx 1 root root 9 nov 15 17:17 pci-0000:01:00.0-scsi-0:0:0:0 -> ../../sda lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:01:00.0-scsi-0:0:0:0-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 nov 15 17:17 pci-0000:01:00.0-scsi-0:0:0:0-part3 -> ../../sda3 $ lspci <snip> 00:0e.0 IDE interface: NVIDIA Corporation MCP51 Serial ATA Controller (rev a1) 00:0f.0 IDE interface: NVIDIA Corporation MCP51 Serial ATA Controller (rev a1) <snip> 01:00.0 Mass storage controller: Silicon Image, Inc. SiI 3531 [SATALink/SATARaid] Serial ATA Controller (rev 01) <snip> I added the files present in /var/log/dist-upgrade from the last upgrade as requested by https://wiki.ubuntu.com/DebuggingUpdateManager. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1059231 Title: do-release-upgrade fails to configure properly Grub from Precise to Quantal. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1059231/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
