update-grub produces grub.cfg that fails to boot linux

[keepitsimpleengr]

I run three Linux systems (and two windows systems) on one computer.

When running 12.04 Xubuntu, update-grub fails to produce one of the Linux menu entries because os-prober (1.51) fails to find it.

When running 10.04 LTS, update-grub produces all menu entries because os-prober (1.38) finds all installed os but not a working menu entry for one because it tries to use the wrong disk for the Linux system. This is clear because it is trying to boot a Windows system and chokes on NTFS file system.

The computer's BIOS will place the disk with the distribution at different places, I have seen /dev/sda, /dev/sdc, and /dev/sdg.

Because of this I use UUIDs so there is no confusion. I have verified that the problematic UUID is correct, so apparently grub is ignoring this and using the "set root='(hd~,~)' "

grub version 1.98-1ubuntu13

boot-info at http://paste.ubuntu.com/1101977/

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: grub-pc 1.98-1ubuntu13
ProcVersionSignature: Ubuntu 2.6.32-41.91-generic 2.6.32.59+drm33.24
Uname: Linux 2.6.32-41-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Fri Jul 20 09:22:41 2012
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: grub2

[keepitsimpleengr (keepitsimpleengineer)]

Workaround found: Installed grub2 on the Arch Linux system, all works well.

[dino99 (9d9)]

That version is no more supported; and backport is not expected as its not a 'security' problem