[Pkg-sysvinit-devel] Bug#742822: Bug#713135: startpar-bridge causes rc to hang with a variety of job types and situations

[Steve Langasek]

On Sun, Mar 30, 2014 at 10:40:47PM +0200, Petter Reinholdtsen wrote:
> [Steve Langasek]
> > In unstable, this has been moved to the 'startpar' package.  It's also
> > apparently been renamed, without discussion with me, to
> > 'startpar-injector'...

> Yeah, to make sure the startpar package do not have to conflict with
> sysvinit-utils.

Why is Breaks/Replaces not sufficient here, which is the normal policy way
of moving files from one package to another?

> See
> <URL: http://lists.alioth.debian.org/pipermail/pkg-sysvinit-devel/2014-February/007399.html >
> for the email where I ask for feedback on the approach.

Well, you asked for feedback on splitting startpar out into a separate
package, which I have no opinion on; I do have opinions on unnecessary
renames of files, though :/

> > Petter, please revert this change of the startpar-bridge name.
> > Upstart systems absolutely *must not* have two versions of the
> > startpar bridge job installed on the system at the same time, this
> > will cause busy loops between the two!

> Hm, my plan is to remove the /etc/init/startpar-bridge.conf during
> upgrades to a sysvinit-utils package depending on startpar (see the
> package in experimental).  Will this not work?  Something in
> particular I need to adjust to keep upstart working in the process?  I
> believed it would be enough to depend on startpar and remove the
> /etc/init/startpar-bridge.conf file during upgrade.

If /etc/init/startpar-bridge.conf is removed, then it will "work"; but the
rename looks entirely unnecessary, and it makes the upgrade more complicated
(== added maintainer script handling) and leaves a window during the upgrade
when /etc/init will be in a bad state.  A simple Replaces: would be atomic
and ensure sane boot behavior even if the system powered off mid-upgrade.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
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