Re: Borked up multiboot system

How you booted before is irrelevant.

You need to:
Verify that you only have one bootable drive (fdisk -l /dev/yada).
Verify that your BIOS is set to boot from that bootable drive.

Boot with a CD, GRML is good, but Supergrub will bail you out of most
situations.
Not all... :)
There are pretty comprehensive GRUB instructions at:
http://www.linuxfromscratch.org/lfs/view/stable/chapter08/grub.html

Run:
grub
root (hd0,0) (assuming first HD)
setup (hd0)

MAKE SURE THAT THE STAGES WERE FOUND!

Verify that /boot/grub/menu.lst matches what you just did.
Pray.
Sacrifice a goat.
BOOT!
Enjoy...    :)
ET 

Steve Phariss writes:

> First my current set up (WAY too many disks with diffrent OS's)
>
> Sata1: Old install of windows 7 blew away with a reload.
> Sata2: Ubuntu 9.04
> Sata3: XP/Ubuntu 8
> Sata4: Centos
>
> What happened is that I re-installed Windows 7 on a working dual-boot
> system, Of course it blew away my working grub boot loader as expected. I
> made the mistake of not documenting where I installed grub.
>
> I would like to restore dual boot (and access to ubuntu 9.04), but when I
> tried with the Ubuntu live disk, I could not find the correct boot loader
> location. If need be I can reload ubuntu, but there are some things on the
> ubuntu 9.04 disk I would like to keep so I would have to back them up. (not
> a problem so much, just a pain.)
>
> I am able to access all the hard drives/partitions.
>
> Steve Phariss
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