Grub Not Working

[madscientist300]

Hi. i re installed windows and now grub isnt working. i dot know how to reinstall the bootloader. i forgot to make a recovey disk. I tried starting my computer on knoppix (this is were im typing this message) but i try the grub-install command and it doesnt work it says "cannot create directory /boot/grub: read only file system". when i chroot to the partition that has redhat 9 on it and try it. i get an error message that says " /dev/hda7 does not have a corresponding BIOS drive" Help anyone??

[variant]

you need to mount /boot before you can read it properly do that then run:

grub

[Nerderello]

read the tutorial section on recovering from what you have done.
It's in the GRUB howto section that I wrote.

have fun

Nerderello

[nomar]

My advice:

boot to knoppix and create a grub floppy like so:

Creating a GRUB boot floppy

To create a GRUB boot floppy, you need to take the files `stage1' and `stage2' from the image directory, and write them to the first and the second block of the floppy disk, respectively.

Caution: This procedure will destroy any data currently stored on the floppy.

On a UNIX-like operating system, that is done with the following commands:



# cd /usr/share/grub/i386-pc
# dd if=stage1 of=/dev/fd0 bs=512 count=1
1+0 records in
1+0 records out
# dd if=stage2 of=/dev/fd0 bs=512 seek=1
153+1 records in
153+1 records out
#

Boot from the floppy, this will bring you to a grub command line.

at the command line example:

#root $BOOT PARTITION
#configfile /grub/grub.conf

Replace $BOOT PARTITION with your boot partition e.g. (hd0,3)

This should allow you to boot into redhat.

Once you have done this re-install grub to your mbr and all should be well.

GRUB how to can be found at http://www.mcc.ac.uk/grub/grub_toc.html#SEC_Contents

Good luck, and keep the grub floppy for any future problems - leaning how to manipulate the GRUB command line is a usefull skill.

nomar.