Comment 3 for bug 69542

and here is /var/log/dist-upgrade/term.log

however I should note that i'm not so much worried that it the file got corrupted(shit happens), but that the update manager failed to notice or correct the corruption.

apt-get wouldn't work either, but at least it told me there was something wrong...

I'm not attaching the actual available file, but from what I could see with a quick less, there was a huge chunk of binary data in the middle. I might be able to find the backup I made of it if you need it?