Uninstall 11.04 from 10.04

[gustokonyan]

Hi,

I originally have ubuntu 10.04 installed. Then I installed Ubuntu 11.04 "alongside 10.04" (usb installer). Now i want to uninstall 11.04.

They say just remove the 11.04 partition. But i think that might cause a problem because when I boot my laptop, it uses the 11.04 boot loader. I am afraid that if i remove the 11.04 partition, i will have no boot loader at all?? I want to be sure..

How do I go around this?


Thanks ..

[Basher101]

By default GRUB is written to your /dev/sda (your hard disk, or to be more percise your MBR), not your partiton (/dev/sda1 or /dev/sda2). So removing the partition would only leave the entry in GRUB. When you deleted the partition and rebooted into 10.04, simply run the command in the terminal

sudo update-grub

to remove the entry. Post your outcome if it worked

[gustokonyan]

Hi, thank you. That makes sense. I will try this as soon as I get back home..

I only assumed that my 11.04 boot loader would persist because, when I tried to change my boot settings using start-up manager on my 10.04, nothing happened. I edited grub config files on it, updated, restarted, nothing happened too.

But when I tried start-up manager on 11.04, it worked.

.. so i assumed they have separate boot loaders, and 11.04's boot loader is the one being used? I will highly appreciate if anyone can clarify more on this.

I am a new ubuntu fan

[Basher101]

Yes, 11.04 uses Grub 2 version 1.99

[gustokonyan]

Yes, 11.04 uses Grub 2 version 1.99

Uhmm ok. So, is it still safe to just remove the 11.04 partition despite of this? I want to be extra sure hehe, i can't afford to lose my 10.04.

[Basher101]

even if you SHOULD be able to manage (somehow...) to delete grub as well, put in the live cd...you can restore grub with only a few commands, there are many step by step threads on how to do this

[gustokonyan]

even if you SHOULD be able to manage (somehow...) to delete grub as well, put in the live cd...you can restore grub with only a few commands, there are many step by step threads on how to do this

Great! but i do not have a live cd. I used the usb installer. I assume it can do the same job?

[Basher101]

Its still a Live CD. You just use other media (like a DVD instead of a CD) and in your case its a USB

[gustokonyan]

Its still a Live CD. You just use other media (like a DVD instead of a CD) and in your case its a USB

Thank you Basher101!

[Basher101]

Thanks appreciated