Linux -- Grub error

[JinLien]

I replaced my PS on the Ubuntu box after it died over night. And now it wouldn't boot. I get the Error 1.5 with screen print number 99 99 99 99 99 99 99 99 99 over and over again.

Should I reinstall over top of the old hdd or try to repair grub?

thanks

 

[drag]

Go ahead and try to repare grub.

You can do this from a Knoppix cdrom... I like running from a chroot'd environment. Make sure that your using a newer version of knoppix.

sudo su -
or su
to root. You may have to setup a password for root, not sure.

Lets assume that your ubunut partition is found on /dev/hda1


You'll want to run fsck on any partitions you want to mount, just in case there is damage.
fsck /dev/hda1

next mount the grub partition. Knoppix tries to detect and setup mount points automaticly so you can use those.
So it would be something like
mount /mnt/hda1

Then cd into it..
cd /mnt/hda1

Now you can mount the nessicary items.. (going from memory, so I may miss out on something)
mount -t proc proc ./proc
mount -t sysfs sys ./sys
mount -o bind /KNOPPIX/dev ./dev

and then chroot to it...
chroot ./ su -

And then that should be everything. You should be able to mess around with grub and run grub-install and such as if you were running that operating system.

After your finished, make sure to umount everything you've mounted and reboot. Hopefully that gets it.

 

[JohnBernstein]

Have a look at:

http://linux.coconia.net/addingXP.htm

It may help.

 

[JohnBernstein]

Don't let the addingXP.htm fool you.
It is really an article about Grub.