Weird Lock-Up

[Matt King]

So this morning I woke up and went to check mail, and couldn't get to my 
server.  Pinged it, was alive; ssh'd in, still got a login prompt. 
Logged in, and got:

-bash: /etc/profile: Device not configured

And the connection was closed.

I rebooted the machine and it came back to normal, but this concerns me. 
  Could be it a disk problem?  Memory problem?  Anyone else have this 
issue before?

Thanks!

Matt King
magnet | internet
http://www.magnetinternet.com