removing grub from a specific partition

venky80 · 2008-10-16 20:43:18

I have vista in /dev/sda1 and arch on /dev/sda3

my vista boot loader wiped my grub from MBR so when i did the following in grub pompt

grub> find /boot/grub/stage1
(hd0,2)
grub> root (hd0,2)
grub> setup (hd0,2) this was a mistake coz i wanted setup (hd0)

how can i delete grub from my /dev/sda3 and instead have it in my MBR

Thanks

fukawi2 · 2008-10-16 21:35:13

This *should* do it. Of course, it may completely screw it.

dd if=/dev/zero of=/dev/sda2 bs=446 count=1

Last edited by fukawi2 (2008-10-16 21:35:26)

venky80 · 2008-10-16 21:44:15

well that does not help can someone confirm is it will not screw my root partition?

fukawi2 · 2008-10-16 21:57:55

That's just a standard disclaimer

If you want a bit of a safe-guard, make a backup of the bytes you're overwriting first to a USB key or another partition:

dd if=/dev/sda2 of=/mnt/usb-key bs=446 count=1

Then if it does screw things up, restore that part of the disk with:

dd if=/mnt/usb-key of=/dev/sda2 bs=446 count=1

Arch Linux