Originally Posted by mlnutt
So basically you have NO IDEA.
This is not easy to guess. You can't say that ur computer was hacked or something untill u get access to ur log files.
15 days back, my computer was cracked as I could see the ssh login attempts, password change messages, new user additions, etc.
In ur case, it might be anything, a power failure, file curruption, system malfunction. etc etc.
We are not magicians my friend, just a bunch of linux users like u r. Yes, maybe we can help u after u post some more details.