GRUB- error: no such partition grub rescue>

[mg283633]

Before I start you should know that I am completely new to ubuntu. I have windows 7 installed on my computer as well as ubuntu 9.10. I recently deleted the ubuntu to make room on my computer for some HD movies that I was planning on burning. I am planning to reinstall ubuntu once I'm done with these movies. Since uninstalling ubuntu i am no longer able to boot my windows 7 or do anything on my computer. Now when I try to start my computer the only message that I get is:
GRUB loading.
error: no such partition
grub rescue>
My computer is stuck at this point. I need help getting my computer working again. I want to keep the GRUB loader because I planning on reinstalling ubuntu. If anyone can help me it would b greatly appreciated.

[leef]

can you boot into windows by entering the following commands?

grub> rootnoverify (hd0,0)
grub> makeactive
grub> chainloader +1
grub> boot

[mg283633]

I tried this and when I try to use the command rootnoverify (hd0,0) it produces the response of unknown command. Is there anything else that I can try?

[drs305]

When you deleted the Ubuntu partition you deleted the configuration files necessary for Grub 2 to boot. But Grub 2 is what is on your MBR and controlling your computer's boot process.

You need to restore your Windows bootloader. You can reinstall Grub 2 when you reinstall Ubuntu.

If that is an acceptable solution, this guide will show you how to do it:

How to restore the Ubuntu/XP/Vista/7 bootloader (Updated for Ubuntu 9.10)

[leef]

It might be different in grub2 instead of rootnoverify (hd0,0), try "set root=(hd0,0)" sorry about that, maybe if that doesn't get it maybe try repairing windows with the windows installation media and then worry about reinstall grub when ubuntu is reinstalled?

[mg283633]

thank you very much it worked like a charm

[julio prada]

I tried this and when I try to use the command rootnoverify (hd0,0) it produces the response of unknown command. Is there anything else that I can try?

I get the same error, looks like this problem is frustrating a lot of people and there is not a guide for non experts.
I reinstalled Ubuntu 9.10 3 times and I get the same problem.
I never get the grub> prompt, only the grub rescue> prompt.
Then I get unknown command with everything I type.
During Ubuntu installation there are "advanced options" but I have not been able to find a help about, not even on the entire Ubuntu site.
I followed the "How to restore the Ubuntu/XP/Vista/7 bootloader (Updated for Ubuntu 9.10)" but still does not work.
SORRY I made a mistake, IT WORKS NOW!!!!
Too bad!

[Prince Valiant]

I'd love to follow the advice of this thread, but I'm using a netbook with no access to a disk drive. Any suggestions? I've got a flash drive with Ubuntu 9.10 installed in lieu of a live CD.

Thanks!

-Val

[meierfra.]

I've got a flash drive with Ubuntu 9.10 installed in lieu of a live CD.

Open a terminal in ubuntu and run

sudo apt-get install lilo

(Ignore the message you will get. Just hit enter).

Then

sudo lilo -M /dev/sda mbr

Here /dev/sda has to be the device name of your internal hard drive. It is almost certainly /dev/sda, but you should double check with "sudo fdisk -lu"

[Prince Valiant]

Sorry I didn't explain further, but I can't boot from the flash drive, 'cause I think I removed Grub when I deleted partitions. However, I've fixed the problem for now by installing Ubuntu 9.04 (that's what I had at the moment) onto the flash drive, including Grub.

That enabled me to boot from the flash drive and access Grub; from there I can boot into Windows or the flash drive Ubuntu. It's a good workaround until I can fix the problem more permanently.

I don't think I'll need any more help here!

-Val