[Pkg-sysvinit-devel] Bug#781766: sysvinit should depend on initscripts for a functional /lib/sysvinit/init

[Michael Biebl]

Am 06.05.2015 um 01:38 schrieb josh at joshtriplett.org:
> On Tue, May 05, 2015 at 07:24:41PM +0200, Michael Biebl wrote:

>> d/ insserv needs to be fixed to not barf if the facilities provided by
>> the initscripts package are not around and handle this gracefully (by
>> simply ignoring them).
> 
> Didn't know about that one, but that sounds reasonable.  However,
> insserv only makes sense on sysvinit systems, and those systems should
> have initscripts, so that might be another path to fixing the problem.

Not quite. For packages which only ship a sysv init script, we need
insserv to setup the symlinks in /etc/rc?.d/
systemd determines the enabled state of sysv init scripts by checking
the symlinks in those directories.
If you only ship a sysv init script but no symlinks, systemd would
consider the service disabled.

>> e/ /lib/init/vars.sh: This shell library is sourced by quite a few init
>> scripts (261 according to codesearch) to get some basic SysV settings.
>> I'm a bit unsure what to do about this one. I bet, most of them don't
>> actually use the variables set by vars.sh, so they could simply drop
>> this include. That said, moving it into another package is probably the
>> simplest option. sysv-rc looks like a possible candidate.
> 
> The few packages using the settings from /etc/default/rcS and similar
> via vars.sh should be fixed to obtain them directly.  The only thing
> needed by the majority of shell scripts is VERBOSE, and I would suggest
> moving that logic into init-functions, since all scripts should be
> sourcing that already.

I assume most packages only use vars.sh for the VERBOSE flag, indeed.
I also think, it's pretty ugly that this isn't handled internally in the
lsb_* logging functions but having this implementation detail pulled
into every init scripts and littered with stuff like
  [ "$VERBOSE" = no ] || log_action_end_msg bla

That said, as it stands today, 261 packages *do* source
/lib/init/vars.sh. That's quite a bit of work to get all those packages
updated to not use vars.sh. Work, that is probably better spent on
providing native service files.


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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