Bug#922815: insserv FATAL while updating as mountkernfs has to be enabled to use service udev

[Dmitry Bogatov]

[2019-02-25 05:45] shirish शिरीष <shirishag75 at gmail.com>
> On 24/02/2019, Dmitry Bogatov <KAction at debian.org> wrote:
>
> <snipped>
>
> > Interesting, you seems somehow got mountkernfs.sh script removed from
> > runlevel S.
> >
> > Can you please invoke as root
> >
> > 	# update-rc.d mountkernfs.sh enable S
> >
> > and then retry your upgrade.
>
> When I try the command you shared, it says -
>
> root at debian:~# update-rc.d mountkernfs.sh enable S
> update-rc.d: error: cannot find a LSB script for mountkernfs.sh

Seems there is no /etc/init.d/mountkernfs.sh on your system.

Since your init system is systemd, I question, why do you need insserv
in first place. Do you have bin:initscripts installed?

My guess is that update-initramfs invokes insserv /if/ it is available,
and since you have insserv installed, but no initscripts, we get this
bug.

Adding initramfs-tools maintainer into loop. If my guess is correct,
this issue should be resolved on initramfs side, since making insserv
depending on initscripts is not nice to user.
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