How would I go about running fsck manually on a cobalt raq4i? I've had a user report his uploaded files are being corrupted. I did a "locate fsck" and it didn't come up with anything. Any ideas?

e2fsck is the command you want, but make sure the system is in single-user mode (or the filesystem you're checking is otherwise mounted read-only or not mounted at all) before you run it. Don't *ever* run fsck on a filesystem that is mounted read/write.