I have a similar problem on Raspberry Pi after update and upgrade, with this sources.list:
deb http://repo.volumio.org/apt/ jessie main contrib non-free rpi
deb http://mirrordirector.raspbian.org/raspbian/ jessie main non-free rpi
deb-src http://mirrordirector.raspbian.org/raspbian/ wheezy main non-free rpi
because I was trying to install the python md module. Now, the WI does not work any more.
I was also wondering about the entries referencing Jessie and Wheezy in sources.list. Is that intentional? Why?
Can you elaborate a bit more what happened with the update, and how it can be fixed? Configurations of nginx, mpd and php-fpm were mentioned, why haven’t the the configs not been saved by the update process?
Can the system be resurrected?
Thanks for the great work otherwise