I have a laptop on which I had Windows 7 installed on. Later I installed Ubuntu 11.10 on a new partition (sda7).
Somehow it magically moved to sda6 and the grub loader freaked out. Then I booted with my live cd of Ubuntu and downloaded ubuntus own boot-repair and ran the recomended program. When I now restarted I could boot into Ubuntu but not Windows, it just says: unknown filesystem grub>
Edit I trind to run the Ubuntu live cd and install it and I no longer get the option where it asks if I want to install Ubuntu alongside Windows. It says that no other operativesystem wap found. But if I mount C and My other partitions, all files is still there.
More info here http://paste.ubuntu.com/716521/
EDIT2 I managed to get my computer to recognize Windows 7 again and I updated grub via boot-repair and there it is on the boot menu. Now the only problem is that when I trying too boot it, it says: "Unknow filesystem" and then the grub resque thing.
Am I on the right path?