In Linux we call the entire device a drive, which can have several partitions on it. Calling partitions drives as well is confusing Windows parlance....
In principle that line should work. You have to make sure the mount point exists before mounting the partition, in other words, create the directory...
Entering the bios: When you switch on the computer you can hit a key to enter the bios. Usually it says which key on a screen with the manufacturer's...
As you are still using 11.10 I assume you don't need the bleeding edge software. I suggest you install 12.04, which has long term support, saves you...
Try Boot-Repair. You'll need to create either a boot-repair disk or an ubuntu live disk. That last one is good to have anyway, because it can be used...