Public bug reported:
Bug report
update-grub not reading UUID's properly
Grub2
xubuntu 12.04
garry@welland-precise-xfce:~$ lsb_release -rd
Description: Ubuntu 12.04 LTS
Release: 12.04
grub2 1.99-21ubuntu3.1
What happened?
1) I did a partimage backup of xbunutu 12.04 off sdc1, then restored that
backup to sdc7.
2) I changed sdc7's UUID from ~~~~898 to ~~~~000
3) Back in sdc1, and in another OS on sda7, I used both yannubutu-boot-repair
and (update-grub + grub-install).
4) I couldn't boot my new sdc7. (actually booted, but to repair menu, which I
couldn't understand.)
5) On both other OS's grub.cfg kept reading as follows (note last 3 chars of
UUID) :-
search --no-floppy --fs-uuid --set=root 9d6412d7-0277-4b1e-b56e-76eb9fb7e000
linux /boot/vmlinuz-3.2.0-23-generic
root=UUID=9d6412d7-0277-4b1e-b56e-76eb9fb7e898 ro quiet splash $vt_handoff
5) When I edited the starting grub menu to make linux~~~~898 ->
linux~~~000, and update-grub + grub-install, sdc7 booted ok. From there
I update-grub + grub-install again, all is OK now.
I struggle with bash, but I suspect /etc/grub.d/10_linux line 124
linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro
${args}
is the culprit.
garrytr...@gmail.com
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1012025
Title:
update-grub not reading UUID's properly
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