Downgrading GRUB [ Ubuntu 10.04 ]

Open a terminal:

Make backup copies of the main GRUB 2 folders & files. (Optional)

sudo cp /etc/default/grub /etc/default/grub.old
sudo cp -R /etc/grub.d /etc/grub.d.old
sudo cp -R /boot/grub /boot/grub.old

Remove GRUB 2

sudo apt-get purge grub2 grub-pc


The system will be unbootable until another bootloader is installed.
Once the packages are removed, many files will still remain in ‘/boot/grub’

Install GRUB 0.97

sudo apt-get install grub

With grub installed, the user must still create the menu.lst and stage1/stage2 files by running the following two commands.

sudo update-grub


Generates menu.lst ; Tab to “Yes” when prompted.

sudo grub-install /dev/sdX


Choose the correct device (sda, sdb, etc), normally the one on which Ubuntu is installed.

Creates the stage1 & stage2 files in /boot/grub and writes to the MBR.

Run this command to keep it from upgrading automatically:

echo "grub hold" | sudo dpkg --set-selections

Reboot


ref: http://ubuntuforums.org/showthread.php?t=1298932

9 comments:

  1. Why on earth would one downgrade?

    ReplyDelete

  2. for example , i know commands and configurations related to GRUB 1 , without looking into any documents . But i don't know anything about Grub 2 . If something wrong happens with grub2 , i will be very difficult for me , unless i master grub2 .......

    ReplyDelete

  3. For triple (3) booting - Windows 7, Mac OS X 10.6.4 and Ubuntu 10.04 using Chameleon bootloader. It needs grub to work, not grub2.

    ReplyDelete

  4. or just having a truecrypted windows system partition. grub2 renders it unboatable therefore I'd go with thegood old grub :)

    ReplyDelete

  5. Hi Alesky,
    Some poorly-designed Windows software writes to the area between the MBR and first partition, where the GRUB 2 core image resides, making the system unbootable. GRUB 1 also uses this area for stage1.5, but much less of it and is (apparently) not as susceptible to this over-writing. See http://www.chiark.greenend.org.uk/ucgi/~cjwatson/blosxom/debian/2010-08-28-windows-applications-making-grub2-unbootable.html for more information.

    Greg

    ReplyDelete

  6. Thanks!
    Grub2 absolutely sucks - hard to script and it's still in Beta (WTH?). Yay, GRUB!

    ReplyDelete

  7. Thanks! Downgrading was very useful. I am having lots of problems with Grub2

    ReplyDelete

  8. Because not everyone is a rocket scientist with hours to spend figuring out a cryptic and confusing system in order to make their multi-boot system work again. I figured out grub, it works for me, so I want it back. Just imagine if the designers of cars replaced all the steering wheels with something new every few years that required some fairly intense but brief training to learn how to operate. At what point do people say, "yes, the steering wheel works. We'll go with that" in the computing world? It's a waste of millions of hours of human capital to have to relearn something every few years that doesn't really need changing.

    ReplyDelete

  9. Thanks!
    just upgraded back to grub and it works fine, again.:)
    However, I find the worst thing about "grub2" is, that its files and directories are still named 'grub'...let's produce more package-conflicts and confusions.:(

    ReplyDelete

Subscribe to: Post Comments (Atom)