This experience taught me a lot. I’ve learned more about how Linux works and how different files (fstab and mtab) affect the OS in different ways. I’m very comfortable with booting to various Linux recovery disks (over the last week I’ve used Helix, Fedora Core 5 and 6, Knoppix, and Knoppix STD) as resources. I also gained experience with some of the tools (fdisk, fsck) I had to use to get the OS to boot again.