Bug#834524: init-system-helpers: does not own /etc/rc?.d

[Josh Triplett]

On Wed, 17 Aug 2016 12:34:59 -0300 Felipe Sateler <fsateler at debian.org> wrote:
> On 17 August 2016 at 03:45, Ferenc Wágner <wferi at niif.hu> wrote:
> > Michael Biebl <biebl at debian.org> writes:
> >
> >> Am 16.08.2016 um 19:12 schrieb Ferenc Wágner:
> >>
> >>> Recently both my daemon packages started to exhibit this piuparts error:
> >>>
> >>> ERROR: FAIL: Package purging left files on system:
> >>>   /etc/rc2.d/         not owned
> >>>   /etc/rc3.d/         not owned
> >>>   /etc/rc4.d/         not owned
> >>>   /etc/rc5.d/         not owned
> >>>
> >>> I think this is the result of sysv-rc losing its Essential flag, which means
> >>> it isn't present in minimal chroots (like those used by piuparts) anymore.
> >>> On the other hand, init-system-helpers imported update-rc.d in version 1.25,
> >>> and I think /etc/rc?.d is created by update-rc.d (but never removed).  All
> >>> this results in piuparts failures in recently tested daemon packages.
> >>>
> >>> If the above analysis is correct, please fix this.
> >>
> >> Fix what exactly?
> >
> > The piuparts errors.  By taking ownership of the /etc/rc?.d symlink
> > directories.  (Removing them if they become empty is another option, but
> > does not sound a very good idea.)  Previously they were owned by
> > sysv-rc, which also provided update-rc.d, which used these directories.
> > When update-rc.d moved into init-system-helpers, /etc/rc?.d should've
> > followed along, but was forgotten, I guess.
> 
> Indeed. init-system-helpers even already did this for
> /etc/systemd/system. I have added the rc?.d directories to the list.
> 
> https://anonscm.debian.org/cgit/collab-maint/init-system-helpers.git/commit/?id=62e093e7949a25479cbc78d01903f76f49629059

This will cause the directories to continue to exist even when empty.

Ideally, these directories could become empty and disappear eventually,
on a system not running sysvinit.  What would it take for that to
happen?