Ubuntu – Dual Boot 10.10 and 11.04 can’t boot into 10.10 after an update

10.10bootgrub2

I've been dual booting my system with Ubuntu 10.10 (Maverick Meerkat) and 11.04 (Natty Narwhal) but today after an update, I can't boot into 10.10, there's only option to boot into 11.04 and Grub also looks a bit different.

Before this update, I used to see first option for 11.04 and an other option called /dev/sda1 for 10.10 but now there is a new option called Previous Linux Versions, but when I Enter into that menu, there is no option to boot into 10.10 all the options take me to 11.04 now it looks like this…
enter image description here

And when I click on Previous Linux Versions…enter image description here

Best Answer

First mount the partition on which 10.10 is installed. You can do this by clicking the on the partition in nautilus sidebar.

Once mounted, run this command in the terminal

sudo update-grub2
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