[Mashiro]

Actually, I have no idea what the heck Debian developers are currently doing but so far pretty much any mirror lacks the "oldstable-updates" / "jessie-updates" folders and the "jessie-backports" folders. So about this sources there isn't much you can do other than comment out all lines that have jessie-backports, jessie-updates or oldstable-updates in them.

The sources.list should look like this after that:

Code: (Select All)

deb http://deb.debian.org/debian/ oldstable main contrib non-free
deb-src http://deb.debian.org/debian/ oldstable main contrib non-free

deb http://deb.debian.org/debian-security oldstable/updates main
deb-src http://deb.debian.org/debian-security oldstable/updates main

Run apt-get clean all after that and then do apt-get update. See if there are still any errors.

God knows what exactly is happening on the mirror servers that the "oldstable-updates" / "jessie-updates" and "jessie-backports" repos aren't available at the moment.