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I am new with Linux and my laptop has Ubuntu 12.10 and Win7/64bit. Grub boot loader makes me choose which to boot at startup. I want to clean re-install of Win7 without changing configuration of GRUB and UBUNTU. Is it possible? If possible please how? Thanks.

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2 Answers 2

Here's the general outline:

Reinstalling Windows 7 Reinstate GRUB Mount the /boot partition Install the boot loader

Step One Re-install Win7.

Step Two Load up from your Ubuntu live CD, and then run these commands.

If you DO NOT have a separate /boot partition:

sudo mount /dev/DEVICENAME_FROM_STEP_ONE /mnt sudo rm -rf /boot # Careful here, make sure YOU ARE USING THE LIVE CD. I tried it, it works. sudo ln -s /mnt/boot /boot

If you have a SEPARATE /boot partition:

sudo mount /dev/DEVICENAME_FROM_STEP_ONE /boot

Step Four Then continue with those commands:

sudo apt-get update && sudo apt-get install grub-pc sudo grub-setup /dev/sda # NOTE THAT THERE IS NO DIGIT sudo umount /boot

And restart. It should work fine and boot both systems.

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install Grub Customizer and Boot Repair:

sudo add-apt-repository ppa:danielrichter2007/grub-customizer

sudo add-apt-repository ppa:yannubuntu/boot-repair

sudo apt-get update

sudo apt-get install grub-customizer boot-repair

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2  
I don't think this is of any help to the question here. The installation of Windows will simply overwrite Grub with a customizer installed or not. –  gertvdijk Jul 10 '13 at 13:10

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