I am getting the exact same message on an HP laptop I am trying to setup
with dualboot WinXP + lucid.
Fixed it by chrooting from the ubuntu cd to the ubuntu installation and running
grub-update; grub-install /dev/sda.
However the problem returned after booting windows once (and installing
servicepack3).
Quick guide to get ubuntu back up (thus answering the "question"):
Boot live cd environment ("test ubuntu").
$ sudo mount /dev/sda2 /mnt (If ubuntu is installed on
second (2) partition of first harddrive (a).
You will have to adapt this to your hard drive layout. )
$ sudo mount --bind /dev /mnt/dev
$ sudo mount --bind /sys /mnt/sys
$ sudo mount --bind /proc /mnt/proc
$ sudo chroot /mnt
(now you are in your ubuntu installation)
$ sudo grub-update
$ sudo grub-install /dev/sda
(check that these two commands ran without any angry complaints)
$ logout
(you are back to the live-cd environment)
$ sudo reboot
--
Dual boot not working unable to boot !! Plz help
https://bugs.launchpad.net/bugs/579759
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