Grub rescue - error: unknown filesystem
I was previously using Win7 and had two partitions on my hard disk. After learning about Ubuntu I decide to remove Windows and install Ubuntu 11.10 instead. All my important files and documents are stored in my second partition. After successful installation, during restart I get the error :
error: unknown filesystem grub rescue>
Please help me to resolve the problem, and note that I don't want dual boot my machine.