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How can I repair grub? (How to get Ubuntu back after installing Windows?)
I installed Ubuntu 12.10 on a Lenovo Thinkpad from a bootable USB device. The automatic installation of Grub failed so I followed the instructions for manually installing Grub which works without errors. Now Grub doesn't load after restarting the laptop; there is only a menu where I can choose from which device I want to boot but there it stucks. At the moment I don't know if Grub is correctly installed or if the error is somewhere else.