Bug#1056391: update-rc.d: DPKG_ROOT support for sysvinit

[Johannes Schauer Marin Rodrigues]

Package: init-system-helpers
Version: 1.65.2
Severity: normal
Tags: patch
User: debian-dpkg at lists.debian.org
Usertags: dpkg-root-support

Hi,

when trying to create a Hurd chroot using chrootless mode with DPKG_ROOT we
noticed that update-rc.d incorrectly handles sysvinit. The patch in this merge
request fixes the problem:

https://salsa.debian.org/debian/init-system-helpers/-/merge_requests/27

This time (in contrast to #983421) the patch is quite a bit more manageable and
it should be easy to see that if the $dpkg_root variable is the empty string
(the normal case) the behaviour is unchanged.

Maybe the check for insserv package versions before 2014 can be removed from
create_sequence()?

Thanks!

cheers, josch