Upgrade from Lucid to Precise results in broken grub configuration
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
update-manager (Ubuntu) |
Confirmed
|
Low
|
Unassigned |
Bug Description
Performed update-manager -d upgrade from lucid VM to precise. On completion, rebooted, and rather than Precise, I'm confronted with a
grub>
prompt.
Attempted recovery by setting root and loading config, but get "unknown command hwmatch" when it tries to load the grub.cfg.
Manually loading vmlinuz and initrd after setting root only gets me as far as a busybox prompt.
Obviously I can't get to the point where I can run ubuntu-bug in that VM, so my ability to get logs is currently limited.
I'm still attempting recovery of the VM, as it's blocking further Ubuntu One upgrade testing that I'm engaged in. I'll add further information if/as I find it.
---
ApportVersion: 1.94.1-0ubuntu1
Architecture: amd64
DistroRelease: Ubuntu 12.04
GsettingsChanges:
com.ubuntu.
com.ubuntu.
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
Package: update-manager 1:0.156.7
PackageArchitec
ProcEnviron:
TERM=xterm
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSign
Tags: precise dist-upgrade
Uname: Linux 3.2.0-18-generic x86_64
UpgradeStatus: Upgraded to precise on 2012-03-07 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
grub reinstall from live CD image seems to have worked. I'm not sure what forensics would be useful here...