dpkg fatal error unable to open files list file Stale NFS file handle
This morning when attempting to upgrade (aptitude update; followed by aptitude safe-upgrade) my system I started receiving the following error:
Preconfiguring packages ...
(Reading database ... dpkg: unrecoverable fatal error, aborting:
unable to open files list file for package `apache2-doc': Stale NFS file handle
E: Sub-process /usr/bin/dpkg returned an error code (2)
A package failed to install. Trying to recover:
It doesn't seem to matter what repository I use or what particular package that I attempt to upgrade (all or just a single package). (In particular, apache2-doc is not even a package being upgraded, although it is installed on the system.) I have rebooted, run apt-get clean, run apt-get check, etc. to no avail.
I am running a standard Debian (5.0.2/Lenny) desktop PC and am not running any NFS processes, client or server.
Are there any Debian experts out there that can give me a clue?