Interestingly, there's a still open upgrade bug from Debian 7 (with systemd) to Debian 8 which hangs the upgrade process, that similarly involves udev update.

Interestingly, there's a still open upgrade bug from Debian 7 (with systemd) to Debian 8 which hangs the upgrade process, that similarly involves udev update. * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774153 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774153 * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737825 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737825