Ok, thanks.

On Thu, 10 Oct 2019 at 05:51, Launchpad Bug Tracker <
<email address hidden>> wrote:

> This bug was fixed in the package systemd - 237-3ubuntu10.31
>
> ---------------
> systemd (237-3ubuntu10.31) bionic; urgency=medium
>
>   [ Dimitri John Ledkov ]
>   * Add conflicts with upstart and systemd-shim. (LP: #1773859)
>   * d/p/debian/UBUNTU-units-disable-journald-watchdog.patch
>     - units: Disable journald Watchdog (LP: #1773148)
>   * d/p/cryptsetup-add-support-for-sector-size-option-8881.patch
>     - cryptsetup: add support for sector-size= option (LP: #1776626)
>   * d/p/systemctl-correctly-proceed-to-immediate-shutdown-if-sche.patch
>     - systemctl: correctly proceed to immediate shutdown if scheduling
> fails
>       (LP: #1670291)
>   * d/p/networkd-add-support-to-configure-IPv6-MTU-8664.patch
>     - networkd: add support to set IPv6MTUBytes (LP: #1671951)
>
>  -- Balint Reczey <email address hidden>  Mon, 30 Sep 2019 17:23:17 +0200
>
> ** Changed in: systemd (Ubuntu Bionic)
>        Status: Fix Committed => Fix Released
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1773859
>
> Title:
>   upgrades to 18.04 fail
>
> Status in systemd package in Ubuntu:
>   Fix Released
> Status in systemd-shim package in Ubuntu:
>   Won't Fix
> Status in systemd source package in Bionic:
>   Fix Released
> Status in systemd-shim source package in Bionic:
>   Won't Fix
> Status in systemd source package in Cosmic:
>   Fix Released
> Status in systemd-shim source package in Cosmic:
>   Won't Fix
>
> Bug description:
>   [Impact]
>
>    * Some systems fail to upgrade due to conflicts between systemd and
>   the (now removed from the archive) systemd-shim / upstart.
>
>    * Instead of trying to work out what's the problem in ordering /
>   removal of diverts, ensure that systemd is never unpacked whilst
>   systemd-shim/upstart are still on disk. Thus declare conflicts against
>   systemd-shim/upstart packages in systemd package.
>
>   [Test Case]
>
>    * monitor drop-off of upgrades with below reported problem
>
>    * Check that it is possible to upgrade to bionic's libpam-systemd
>   from xenial with systemd-shim installed on xenial, ie.
>
>   lxc launch ubuntu-daily:xenial test-shim-upgrade
>   lxc exec test-shim-upgrade
>   apt update
>   apt install systemd-shim
>   wget
> https://deb.debian.org/debian/pool/main/s/systemd-shim/systemd-shim_10-3_amd64.deb
>   apt install ./systemd-shim_10-3_amd64.deb
>   sed 's/xenial/bionic/' -i /etc/apt/sources.list
>   apt update
>   apt install systemd
>
>   this currently passes, however, systemd-shim remains installed. It
>   should be removed instead. Apt install systemd should have lines like
>   this:
>
>   The following packages will be REMOVED:
>     systemd-shim
>   ...
>   Removing 'diversion of
> /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service to
> /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.systemd
> by systemd-shim'
>   ...
>
>
>   [Regression Potential]
>
>    * systemd-shim/upstart are both removed and not supported in bionic,
>   thus forcing their removal via conflicts should bring the system into
>   an expected state.
>
>   [Other Info]
>
>    * original bug report
>
>   $ sudo apt upgrade
>   Reading package lists... Done
>   Building dependency tree
>   Reading state information... Done
>   Calculating upgrade... Done
>   The following packages will be REMOVED:
>     systemd-shim
>   0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
>   1 not fully installed or removed.
>   After this operation, 71.7 kB disk space will be freed.
>   Do you want to continue? [Y/n] y
>   (Reading database ... 632222 files and directories currently installed.)
>   Removing systemd-shim (9-1bzr4ubuntu1) ...
>   Removing 'diversion of
> /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service to
> /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.systemd
> by systemd-shim'
>   dpkg-divert: error: rename involves overwriting
> '/usr/share/dbus-1/system-services/org.freedesktop.systemd1.service' with
>     different file
> '/usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.systemd',
> not allowed
>   dpkg: error processing package systemd-shim (--remove):
>    subprocess installed post-removal script returned error exit status 2
>   Errors were encountered while processing:
>    systemd-shim
>   E: Sub-process /usr/bin/dpkg returned an error code (1)
>
>   Commenting out the dpkg-divert in systemd-shim's postrm solved this
>   for me and I was about to continue the upgrade.
>
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