We don't really expect /var/log/udev to be a directory (nothing in Ubuntu creates it like that), but we should of course not fail the upgrade due to that. I committed a simple fix to http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/commit/?h=ubuntu-xenial&id=d133b04 .
This is only relevant for xenial, this transitional code will be dropped entirely in yakkety.
We don't really expect /var/log/udev to be a directory (nothing in Ubuntu creates it like that), but we should of course not fail the upgrade due to that. I committed a simple fix to http:// anonscm. debian. org/cgit/ pkg-systemd/ systemd. git/commit/ ?h=ubuntu- xenial& id=d133b04 .
This is only relevant for xenial, this transitional code will be dropped entirely in yakkety.