Cannot uninstall upstart and install systemd-sysv

sysvinit's dependency updates are contained in my pending merge in http://people.canonical.com/~pitti/tmp/sysvinit-merge/

This bug was fixed in the package plymouth - 0.9.0-0ubuntu3

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plymouth (0.9.0-0ubuntu3) utopic; urgency=medium

  * Convert versioned upstart dependency into a versioned Breaks. We ship
    systemd units too now, and this avoids a hard upstart dependency even
    in minimal debootstraps/chroots. (LP: #1351306)
 -- Martin Pitt <email address hidden> Fri, 01 Aug 2014 15:12:37 +0200

At the moment we'd want to support for people to install systemd-sysv, and easily revert back to upstart.

Ideally, systemd-sysv would not conflict with upstart, instead it would dpkg divert /sbin/init to /sbin/init.upstart and install /sbin/init which is systemd. That way people can still boot into upstart with init=/sbin/init.upstart and trivially revert back by removing systemd-sysv package.

Wrt. runlevel, telinit, shutdown, poweroff, halt: i think we want upstart equivalent to be aware of systemd. Such that, if system was booted with systemd, one can use invoke upstart commands which will send the request off to e.g. systemctl,

Similarly, we probably want to continue to provide "start/stop/restart/reload" commands that also call into systemctl if appropriate.

This bug was fixed in the package avahi - 0.6.31-4ubuntu3

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avahi (0.6.31-4ubuntu3) utopic; urgency=medium

  * Drop upstart dependency. We ship init scripts for sysv, upstart, and
    systemd now. (LP: #1351306)
 -- Martin Pitt <email address hidden> Fri, 01 Aug 2014 15:16:40 +0200

This bug was fixed in the package dbus - 1.6.18-0ubuntu10

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dbus (1.6.18-0ubuntu10) utopic; urgency=medium

  * Drop upstart dependency. We ship init scripts for sysv, upstart, and
    systemd now. (LP: #1351306)
 -- Martin Pitt <email address hidden> Fri, 01 Aug 2014 15:19:20 +0200

On Fri, Aug 01, 2014 at 02:13:18PM -0000, Dimitri John Ledkov wrote:
> At the moment we'd want to support for people to install systemd-sysv,
> and easily revert back to upstart.

> Ideally, systemd-sysv would not conflict with upstart, instead it would
> dpkg divert /sbin/init to /sbin/init.upstart and install /sbin/init
> which is systemd. That way people can still boot into upstart with
> init=/sbin/init.upstart and trivially revert back by removing systemd-
> sysv package.

Diversions are a bad scene; almost no one gets their handling right on
removal. They shouldn't be in maintainer scripts at all, they should be
declarative within dpkg, and it's messy because they're not.

So while diverting init isn't quite as bad as diverting, say, /bin/sh or
libc.so.6, I think a solution that *doesn't* require diversions, but can
instead use conflicts, is better.

This bug was fixed in the package friendly-recovery - 0.2.26

---------------
friendly-recovery (0.2.26) utopic; urgency=medium

  * Drop /usr/share/recovery-mode symlink and transition, this happened in
    oneiric already.
  * Move from cdbs to dh to simplify/modernize build system.
  * Update to copyright format 1.0.
  * Bump Standards-Version to 3.9.5.
  * lib/recovery-mode/options/dpkg: Fix ubuntu-release-upgrader mode again:
    Update to Python 3, and fix --datadir.
  * When running under systemd, call its "remount-fs" service for remounting
    r/w instead of mountall.
  * Add systemd unit, hooking into local-fs-pre.target. This is based on
    emergency.target, but watches out for "recovery" on the kernel command
    line, similar to upstart. (LP: #1351316) Add alternative "systemd-sysv"
    dependency (LP: #1351306)
 -- Martin Pitt <email address hidden> Mon, 04 Aug 2014 12:42:25 +0200

Upstart uploaded, will need to go through NEW.

This bug was fixed in the package upstart - 1.13.1-0ubuntu3

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upstart (1.13.1-0ubuntu3) utopic; urgency=medium

  * Split upstart package into upstart & upstart-bin. (LP: #1351306)
 -- Dimitri John Ledkov <email address hidden> Wed, 06 Aug 2014 13:07:24 +0100

systemd-sysv is now installable in utopic-proposed in a (rather minimal) schroot. However, I suppose before britney will allow the promotion to utopic/universe we'd need to fix *all* dependencies to upstart, and I'm not sure that we actually want to yet..

This bug was fixed in the package sysvinit - 2.88dsf-41ubuntu17

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sysvinit (2.88dsf-41ubuntu17) utopic; urgency=medium

  * Drop initscript dependencies to upstart and mountall. Debian's SysV init
    boot scripts are back, and both upstart and systemd now provide jobs/units
    which "shadow" the SysV init.d scripts. This allows installing
    systemd-sysv instead of upstart. (LP: #1351306)
 -- Martin Pitt <email address hidden> Thu, 07 Aug 2014 10:39:25 +0200

Right,
yesterday when systemd (208-7ubuntu4) and sysvinit (2.88dsf-41ubuntu17) were published in Utopic pocket release,
  I upgraded my setup.
After that I installed systemd-sysv and purged upstart, upstart-bin, ureadahead and libjson0.
I am using systemd booting and it works just fine (with no upstart installed).

Harry, I didn't dare to try that yet, but good to know :-)

Sorry, this doesn't actually affect unity-lens-applications, this is just a transitive dep.

This bug was fixed in the package hockeypuck - 1.0~rel20140413+7a1892a~trusty.1

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hockeypuck (1.0~rel20140413+7a1892a~trusty.1) utopic; urgency=medium

  * Drop unnecessary upstart recommends, the package has an init.d script as
    well which is supported by all init systems. (LP: #1351306)
 -- Martin Pitt <email address hidden> Wed, 03 Sep 2014 09:44:14 +0200

This bug was fixed in the package dovecot - 1:2.2.9-1ubuntu5

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dovecot (1:2.2.9-1ubuntu5) utopic; urgency=medium

  * No-change rebuild against current debhelper to drop unnecessary upstart
    dependency. (LP: #1351306)
 -- Martin Pitt <email address hidden> Wed, 03 Sep 2014 09:50:41 +0200

This bug was fixed in the package unity - 7.3.1+14.10.20140904-0ubuntu1

---------------
unity (7.3.1+14.10.20140904-0ubuntu1) utopic; urgency=low

  [ Martin Pitt ]
  * Adjust upstart dependency to upstart-bin. (LP: #1351306)

  [ Brandon Schaefer ]
  * When Show Desktop is active, it will set the tooltip icon as
    "Restore Windows". This is per workspace. So each time show_destop
    bool is updated in PluginAdapter, the Show Desktop icon will update
    its tooltip if needed. (LP: #1237132)
  * Use CONFIG instead of CACHE to store the first_run.stamp

  [ Stephen M. Webb ]
  * update the unity manpage (LP: #1059275)

  [ Andrea Azzarone ]
  * Share lockscreen password entry between screens. (LP: #1308540)

  [ Marco Trevisan (Treviño) ]
  * IconRenderer: draw count texture at proper scaling, built by
    LauncherIcon (LP: #1353070)
  * LauncherIcon: make the Icon count width depending on the text value
    width (LP: #796527)
  * Lockscreen: scale the UI elements based on current monitor scaling
    (LP: #1292218)
  * SwitcherView: set progress on icon render args (LP: #1361679)
  * SearchBar, ActionButtons, IconRenderer: include the font scaling
    when scaling textual items
 -- Ubuntu daily release <email address hidden> Thu, 04 Sep 2014 22:12:54 +0000

This bug was fixed in the package pay-service - 2.0.0+14.10.20140916-0ubuntu1

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pay-service (2.0.0+14.10.20140916-0ubuntu1) utopic; urgency=low

  [ Martin Pitt ]
  * Adjust upstart dependency to upstart-bin. (LP: #1351306)
 -- Ubuntu daily release <email address hidden> Tue, 16 Sep 2014 18:31:43 +0000

This bug was fixed in the package ubuntu-app-launch - 0.4+14.10.20140925-0ubuntu1

---------------
ubuntu-app-launch (0.4+14.10.20140925-0ubuntu1) utopic; urgency=low

  [ Martin Pitt ]
  * Upstart dep updated to trunk

  [ Ted Gould ]
  * Upstart dep updated to trunk
  * Add handling for X-Ubuntu-SymbolicIcon in desktop hook (LP:
    #1365408)

  [ CI bot ]
  * Adjust upstart recommends to upstart-bin (LP: #1351306)
 -- Ubuntu daily release <email address hidden> Thu, 25 Sep 2014 14:43:28 +0000