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I have Windows XP, Windows 7, and several Linux distros installed on different partitions. I would like to replace my main Linux installation (an earlier version of Ubuntu) with a newer one. This installation manages the boot menu (Grub2) for the other systems.

How do I do that without losing the ability to boot into Windows and other operating systems?

The GRUB does need to be replaced with a newer version... I am trying to figure out how to do that without destroying my computer.

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Just install the newer version of Ubuntu and install Grub into the MBR of the first hard drive. This is the default behavior.

If there is a problem, let us know or use boot repair

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