I'm not totally sure if this helps, but try an aptitude update, then the upgrade. On 11/22/2010 10:50 AM, Chuck Hallenbeck wrote: > Can someone please explain this error? I have the following line in my > /etc/apt/sources.list: > > deb-src http://ftp.us.debian.org/debian/ squeeze main > > and when I do an aptitude full-upgrade, I get this error message: > > E: Release file expired, ignoring > http://ftp.us.debian.org/debian/dists/squeeze/Release (invalid since 1d > 20h 51min 30s) > > I haven't made any changes in the sources.list for many months, the > error just began occuring over the weekend. > > Thanks, > > Chuck > -- Thanks, Ty