On Wed, 2017-12-27 at 08:30 +0100, J. Fahrner wrote:
> Am 2017-12-27 07:57, schrieb Ralph Ronnquist:
> > Probably you have the dangling link /etc/rcS.d/S11udev-finish (or
> > similar), which would be a remnant from the udev package, and it
> > should have been removed when udev was removed.
> >
> > Possibly there is also a dangling /etc/rcS.d/S02udev.
> >
> > It's unclear to me why it gets left, but I had them too.
>
> Thank you very much! That solved it! Now my bootlog is clean :-)
> Strange: that only happend on 1 of my 3 upgraded systems.

I think your problem is that udev 232-25+deb9u1 (or earlier) is
replaced with the transitional package 1:3.2.2+devuan2.10 and eudev
3.2.2-9 when upgrading. When udev is replaced old config files are not
removed. Doing a dpkg --purge udev removes /etc/init.d/udev but does
unfortunately not purge the dangling symlink: /etc/rcS.d/S02udev. You
have to remove that one manually.
The new file and symlink on my system is:
/etc/init.d/eudev
/etc/rcS.d/S04eudev -> ../init.d/eudev