Monday, July 9, 2007

~ Recovering Ubuntu after Windows

This guide tells u how to recover ur Ubuntu OS if ur GRUB is lost by installing Windows aftr u install Ubuntu.

To be more explanative, this guide helps to solve u the following scenario.

  • you hav windows, u installed Ubuntu aftr tht, then u faced some problems with windows, so u re-installed windows. hmm in such a case, ur GRUB will be overwritten by the new windows boot-loader and u can only boot to windows.
OR ....
  • you have ubuntu alredy installed, now u installed windows on ur system. in such a case also, u can only boot to windows, aftr completing the windows installation.

now u want to restore ur Ubuntu, so tht u can bring back ur dual-boot setup again.

Do dis,....

Boot frm ur Ubuntu CD. You will reach the Ubuntu desktop. Open terminal. Typ in the commands following the ">"

> sudo -i
> grub
> find /boot/grub/stage1

now NOTE wats coming as output. THIS IS IMPORTANT.

for me, it came as (hd0,3). so i am continuing with tht output. replace (hd0,3) with the output u got in ur system.

> root (hd0,3)
> setup (hd0) <------- HERE GIVE (hd0) no matter wat u got as output.
> quit

Restart... DONE !

2 comments:

Manish said...

You first need to mount the / partition and chroot in to it, before doing all these things...

Anoop C Jacob said...

no need 2 do it manually, cuz its automatically done when u boot up frm the Live cd...

so ONLY the above mentioned steps are necessary :)