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I have installed Ubuntu linux 12.04 on sda10, and grub2 in sda5 . Actually I had a legacy grub installed in MBR, I want to load Ubuntu linux from the old grub. How could I do this?

This question arise, because before I installed Ubuntu linux 12, I already have a grub installed in my pc, and working well with three other OS, after I installed Ubuntu linux 12 with grub in MBR, I can't load other system. So I have to install Ubuntu Linux grub in non-MBR, and want to find a way to load it from the old grub.


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