Re: Can't upgrade gcc-3.3 (Device or resource busy)
Well, a little googling (Debian "device or resource busy" upgrade)
turned up http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=204600 .
The submitter never responded to inquiries for further information, so
it was closed without being resolved. One of the suggested checks was
for disk failure, so...have you checked the output of dmesg? It could
be as simple as your hard drive is about to go completely belly-up.
Michael A. Marsh