No bootable partition after Ubuntu install

[Dotan Cohen]

On 05/04/2008, Doctor Who <whodoctor at gmail.com> wrote:
> I have installed Ubuntu 8.04 beta from CD onto one hard drive (sda) on
>  machine with 3.total (including sdb and sdc).  I have other OSs
>  installed on this machine and use the graphical boot loader GAG to
>  launch each.  With each OS install, I have the installer put the boot
>  loader on the root partition of that install rather than the MBR.
>
>  This has worked fine until now.  With Ubuntu, it appears that when I
>  do the advanced options of the installer (step 7 of 7) and I tell it
>  to put the boot loader on /dev/sda1 it is not being respected as
>  Ubuntu will not boot with GAG pointing to this partition and the
>  partition is not being shown as bootable (No asterisk in the 'Boot'
>  column of 'fdisk -l' output).
>
>  My question is:  How do I make that partition bootable at this point.
>  It's not so much re-installing GRUB as launching GRUB and running
>  'find /boot/grub/menu.lst' of 'find /boot/grub/stage1' shows that
>  those cannot be found for /dev/sda1.  They *are* seen for my other OS
>  installs.
>
>  The drive is partitioned as /dev/sda1 as / (10GB), /dev/sda2 as /tmp/
>  (2GB), /dev/sda3 as swap (2GB), and /dev/sda4 as /home (460 GB).
>
>  Thanks for any assistance with this.

Make sure that BIOS is configured to boot from the drive with the boot loader.

Dotan Cohen

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