Your message dated Tue, 24 Jun 2014 15:44:35 +0000 with message-id <e1wzstf-0001qm...@franck.debian.org> and subject line Bug#748355: fixed in systemd 204-11 has caused the Debian Bug report #748355, regarding Upgrading from sysvinit/wheezy to systemd-sysv/sid impossible due to loop to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 748355: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=748355 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
--- Begin Message ---Package: systemd-sysv Version: 204-10 Severity: serious Justification: triggers a debian-policy defined dpkg error (§7.4) X-Debbugs-CC: pkg-sysvinit-de...@lists.alioth.debian.org Hi *, I got a report (now…) that apt segfaults in a wheezy → sid upgrade. Debugging this leads to the following universe (hugely simplified): Package: sysvinit Version: 1 Essential: yes Package: sysvinit Version: 2 Pre-Depends: sysvinit-core | systemd-sysv Essential: yes Package: sysvinit-core Version: 2 Package: systemd-sysv Version: 2 Conflicts: sysvinit (<< 2) Breaks: sysvinit-core If we have sysvinit v1 installed and want to install systemd-sysv now we not only run into the previously mentioned segfault, but, if the segfault would not appear and dpkg actually executed we get: | Selecting previously unselected package systemd-sysv. | dpkg: considering deconfiguration of sysvinit, which would be broken by installation of systemd-sysv ... | dpkg: no, sysvinit is essential, will not deconfigure | it in order to enable installation of systemd-sysv | dpkg: error processing archive /tmp/tmp.W9nkJhRQvg/aptarchive/pool/systemd-sysv_2_amd64.deb (--unpack): | installing systemd-sysv would break existing software | Errors were encountered while processing: | /tmp/tmp.W9nkJhRQvg/aptarchive/pool/systemd-sysv_2_amd64.deb | E: Sub-process fakeroot returned an error code (1) The reason is "simple": Unpacking systemd-sysv is not possible before we have gotten right of sysvinit 1. The normal solution is to just upgrade it to version 2, but this requires us to first unpack systemd-sysv -> loop. The other solution is to temporary remove sysvinit 1 and reinstall it later on. Such a practice isn't allowed for essential packages. Debian policy §7.4 even explicitly defines that dpkg should error out if it is attempt, which is what you get at the moment (minus a segfault). Note that Breaks will not work either (same message). I see two probably good-enough solutions: 1. Downgrade Pre-Depends in sysvinit to a Depends Technical it isn't entirely correct as it would be allowed to have an unpacked sysvinit then, but not a working init system. In theory I assume this window of opportunity to be very small as APT treats Depends of a (pseudo-)essential package if at all possible as Pre-Depends and also tries to configure them as soon as possible. In practice it should mean that they are unpacked in the same dpkg call, so if you can write your maintainerscripts without requiring runlevel, shutdown and co this should work out. 2. Remove Conflicts: sysvinit (<< 2) from systemd-sysv It is only for the file replacement, right? (In which case Breaks would have equally (not) worked). dpkg is happy as long as it has Replaces, so we talk mostly about partial upgrades and downgrades here and while I tried to come up with a good scenario in which something would break, I failed to find one given that both seem to work with the binaries of the other at least somehow. (This 2nd solution is btw deployed in sysvinit-core, so just in case someone requests adding a Conflicts/Breaks here: be careful) I guess 'solution' 2 is preferable, so I report against systemd, but have CC'ed sysvinit maintainers. Feel free to disagree and reassign and/or invent another (better) solution. Best regards David Kalnischkies P.S.: Full-disclosure bla bla: At the moment a third solution would be for apt to temporary install sysvinit-core, to be able to install the new version of sysvinit, so that it in turn can remove sysvinit-core again and replace it with systemd-sysv. Yes, that would be insane and is not even close to be supportable as a scenario by apt …
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--- Begin Message ---Source: systemd Source-Version: 204-11 We believe that the bug you reported is fixed in the latest version of systemd, which is due to be installed in the Debian FTP archive. A summary of the changes between this version and the previous one is attached. Thank you for reporting the bug, which will now be closed. If you have further comments please address them to 748...@bugs.debian.org, and the maintainer will reopen the bug report if appropriate. Debian distribution maintenance software pp. Michael Biebl <bi...@debian.org> (supplier of updated systemd package) (This message was generated automatically at their request; if you believe that there is a problem with it please contact the archive administrators by mailing ftpmas...@ftp-master.debian.org) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Format: 1.8 Date: Tue, 24 Jun 2014 17:03:43 +0200 Source: systemd Binary: systemd systemd-sysv libpam-systemd libsystemd-login0 libsystemd-login-dev libsystemd-daemon0 libsystemd-daemon-dev libsystemd-journal0 libsystemd-journal-dev libsystemd-id128-0 libsystemd-id128-dev udev libudev1 libudev-dev udev-udeb libudev1-udeb libgudev-1.0-0 gir1.2-gudev-1.0 libgudev-1.0-dev python-systemd systemd-dbg Architecture: source amd64 Version: 204-11 Distribution: unstable Urgency: medium Maintainer: Debian systemd Maintainers <pkg-systemd-maintain...@lists.alioth.debian.org> Changed-By: Michael Biebl <bi...@debian.org> Description: gir1.2-gudev-1.0 - libgudev-1.0 introspection data libgudev-1.0-0 - GObject-based wrapper library for libudev libgudev-1.0-dev - libgudev-1.0 development files libpam-systemd - system and service manager - PAM module libsystemd-daemon-dev - systemd utility library - development files libsystemd-daemon0 - systemd utility library libsystemd-id128-0 - systemd 128 bit ID utility library libsystemd-id128-dev - systemd 128 bit ID utility library - development files libsystemd-journal-dev - systemd journal utility library - development files libsystemd-journal0 - systemd journal utility library libsystemd-login-dev - systemd login utility library - development files libsystemd-login0 - systemd login utility library libudev-dev - libudev development files libudev1 - libudev shared library libudev1-udeb - libudev shared library (udeb) python-systemd - python bindings for systemd systemd - system and service manager systemd-dbg - system and service manager (debug symbols) systemd-sysv - system and service manager - SysV links udev - /dev/ and hotplug management daemon udev-udeb - /dev/ and hotplug management daemon (udeb) Closes: 739113 746351 747741 748355 751472 751589 Changes: systemd (204-11) unstable; urgency=medium . [ Martin Pitt ] * Explain patch management in debian/README.source. (Closes: #739113) * Replace "Always probe cpu support drivers" patch with cherry-picked upstream fix which is more general. * Advertise hibernation only if there's enough free swap. Patches backported from current upstream. (LP: #1313522) * Fix typo in sg loading rule to make it actually work. . [ Michael Biebl ] * Make no-patch-numbers the default for gbp-pq. * Cherry-pick upstream fix to properly handle multiline syslog messages. (Closes: #746351) * Cherry-pick upstream fix for libudev which fixes a memleak in parent_add_child(). * Drop "-b debian" from Vcs-Git since we use the master branch for packaging now. * Drop Conflicts: sysvinit (<< 2.88dsf-44~) from systemd-sysv since this breaks dist-upgrades from wheezy when switching from sysvinit to systemd-sysv as default init. While downgrading the Pre-Depends in sysvinit would have been an alternative, dropping the Conflicts and only keeping the Replaces was deemed the lesser evil. (Closes: #748355) * Use Conflicts instead of Breaks against sysvinit-core. This avoids /sbin/init going missing when switching from systemd-sysv to sysvinit. While at it, add a Replaces: upstart. (Closes: #751589) * Make the SysV compat tools try both /run/initctl and /dev/initctl. This makes them usable under sysvinit as PID 1 without requiring any symlinks. * Various ifupdown integration fixes - Use DefaultDependencies=no in ifup@.service so the service can be started as early as possible. - Create the ifupdown runtime directory in ifup@.service as we can no longer rely on the networking service to do that for us. - Don't stop ifup@.service on shutdown but let the networking service take care of stopping all hotplugged interfaces. - Only start ifup@.service for interfaces configured as allow-hotplug. . [ Michael Stapelberg ] * Clarify that “systemd” does not influence init whereas “systemd-sysv” does (Closes: #747741) . [ Ansgar Burchardt ] * Don't use "set +e; set +u" unconditionally in the lsb init-functions hook as this might change the behaviour of existing SysV init scripts. 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