reinstalling grub

vineet7kumar · 01-10-2006, 06:48 AM

my friend had successfully installed windows and fc3 . after that on installing directx9 in windows the system rebooted showing

grub>

prompt.
no OS can be loaded . i supos there is a problem now with grub . how to reinstall it now?
if there is some other problem what can it be?

thanx.v

marozsas · 01-10-2006, 07:29 AM

At the grub prompt type:
grub> find /boot/grub/stage1

the answer is something like this: (hdx,y) where x and y are numbers. write down theses numbers. You need to replace x and y in the following commands:
grub> root (hdx,y)
grub> setup (hdx)
grub> quit

now reboot your computer again. this time, if nothing else was corrupted, you will get the grub menu again.

regards

syg00 · 01-10-2006, 07:57 AM

I suspect that you'll need to adjust the instructions above to use "setup (hd0)", so grub can be rebuilt in the MBR of the boot disk.
If you use some other number for "x", you'll hit the MBR on the wrong disk.

The grub prompt indicates it's already there.