Hi Igor,
i read your post ....
This is exactly the case with recent Jessie / systemd problem. I already spent few days and haven't made any progress :/ Next Jessie build will come without it by default.
and tried this:
http://without-systemd.org/wiki/index.php/How_to_remove_systemd_from_a_Debian_jessie/sid_installation
and afterwards upgraded from 4.2.0 via apt-get update && apt-get upgrade to 4.2.2
Boots && works like a charm ...
Regards,
A.