I have a hard drive which has failed and I am attempting to recover some files prior to replacing the HD. I made a bootable CD and was able to get Knoppix to load successfully. It recognized my HD (both partitions) and my USB external drive. I copied a couple of files over and it appeared to be working well. I had to stop and shut-down, however, after starting this process. Now when I load Knoppix again, it does not recognize the partitions as it did previously. It only shows the "c" drive. This drive will not mount or open. The message is something along the lines of not being able to recognize the file system and one is not designated.

Any idea if there are other options I can try to gain access to these files again?

Thanks.