Repairing Grub?

[lglrgl]

I am currently dual booting linux with windows xp with each on a separate HD using Grub as the boot loader. Recently I have been experiening problems with grub loading. After booting the PC I receive the message "Grub loading stage 2" and after about 30 seconds the message "read error" appears.

Does anyone have any advice regarding how to approach this?

thanks

[moistmule]

the easiest way to repair GRUB is with a Knoppix CD, load knoppix and do the following: (assuming /dev/hda is the device and /dev/hda1 the first partition)

1. Open a Terminal
2.

 knoppix@box$ sudo mount -o dev,rw /dev/hda1

3.

 knoppix@box$ sudo chroot /mnt/hda1 grub-install /dev/hda

if that doesn't work, or if you can't chroot, come back and we'll try a different way

[lglrgl]

thanks moist,

I have been able to get the system to boot sporadically typically after 4 or 5 boots, but I'm sure this problem will become permanant really soon. If possible and if I can boot again I then plan to repair grub from the terminal after booting.

Will the sudo command that you provided work with any version of linux, I am currently using Fedora 5 which is installed on the slave hd which I think is hdb.

[moistmule]

sudo might work, depends on your setup. use this instead:

user@fedora$ su
Password: [enter password]

sudo is just a short cut to the above anyway.