[Bug 1573952] Re: Graphical update from 15.10->16.04 failed with apparent window manager crash

[Brian Murray]

@BCB - that issue is not related to the one in this report and you
should open a new bug report.

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Title:
  Graphical update from 15.10->16.04 failed with apparent window manager
  crash

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  This may be related to bug #1555237, although that is marked as "fix
  released"

  I was prompted to upgrade from 15.10 to 16.04 last night, by the
  graphical updater. It disabled my PPAs, downloaded the packages and
  began the install. When I looked again later, I had a dialog box
  giving information on the networking changes in LXC, but the window
  manager decorations had gone, unity sidebar was gone, top bar was
  gone, screen and windows unresponsive to mouse clicks and alt-tab not
  working. There was no way to switch to the dialog box to continue the
  update.

  Running "ps aux | grep update" gave:

  neil      3473  0.1  0.0   4476   688 ?        SN   16:52   0:13 /bin/sh -c /usr/bin/pkexec /usr/bin/do-release-upgrade --frontend=DistUpgradeViewGtk3
  root      5556  1.3  1.7 638124 144824 ?       SNl  16:59   1:53 /usr/bin/python3 /tmp/ubuntu-release-upgrader-31my8tm6/xenial --mode=server --frontend=DistUpgradeViewGtk3
  root      6290  5.4  1.3 634492 108848 pts/5   SNs+ 18:18   3:18 /usr/bin/python3 /tmp/ubuntu-release-upgrader-31my8tm6/xenial --mode=server --frontend=DistUpgradeViewGtk3
  root     15461  0.0  0.2  66592 17348 pts/14   SN+  18:35   0:00 /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/tmp.ci/preinst upgrade 0.20-0ubuntu4.1
  root     15478  0.0  0.0   4508  1708 pts/14   SN+  18:35   0:00 /bin/sh /var/lib/dpkg/tmp.ci/preinst upgrade 0.20-0ubuntu4.1
  root     15490  0.0  0.0  24676  3332 pts/14   SN+  18:35   0:00 whiptail --backtitle Package configuration --title Configuring lxd --output-fd 11 --nocancel --msgbox lxcbr0 is being replaced by lxdbr0  With this package upgrade LXD is moving away from the LXC provided  lxcbr0 bridge and moving to its own lxdbr0 bridge.  The reason for this switch is:  - Drop the dependency on the old LXC (lxc1) package.  - Only run the bridge when LXD is running.  - Don't hardcode a subnet which may be used by the user.   Important differences between lxcbr0 and lxdbr0:  - The lxdbr0 bridge DOES NOT come with ANY configured IPv4 or IPv6  subnet.  - The bridge provides basic HTTP connectivity out of the box by way of    a tiny HTTP PROXY server running on an IPv6 link-local address.  - The user IS EXPECTED to configure the bridge to use an UNUSED subnet    on their network.   To configure lxdbr0 to your liking, please run: dpkg-reconfigure -p  medium lxd  To stay on the old lxcbr0 bridge, make sure you have the "lxc1" package  installed, then select the "use an existing bridge" option. --scrolltext 20 77
  neil     18178  0.0  0.0  18368   504 tty4     S+   19:18   0:00 grep upgrade

  I killed PID 15490, which allowed the install process to continue, but
  without any graphical progress box. I had to monitor the upgrade
  process in "top" and manually reboot when all the likely upgrade
  processes were finished.

  On rebooting into 16.04 and logging in, I had to reset compiz with
  "dconf reset -f /org/compiz/ && setsid unity" to bring back my sidebar
  and window decorations.

  ******
  There have been a couple of similar bugs mentioned which may be similar. See https://www.gamingonlinux.com/forum/topic/2086/page=1 and the transcript from user "xenialdenial" on http://irclogs.ubuntu.com/2016/04/23/%23ubuntu.txt
  ******

  My system -
  15.10 amd64 on a bcache'd ext4 partition (installed de novo) with an attempted upgrade to 16.04 using standard graphical updater when prompted. Using proprietary nvidia drivers from the ubuntu repos. My post-upgrade /etc/apt/sources.list.d/ contains the following PPAs/repos:
  google-chrome.list
  google-chrome.list.distUpgrade
  google-chrome.list.save
  njmcphail-ubuntu-ag-dead-fork-wily.list
  njmcphail-ubuntu-ag-dead-fork-wily.list.distUpgrade
  njmcphail-ubuntu-ag-dead-fork-wily.list.save
  syncthing-release.list
  syncthing-release.list.distUpgrade
  syncthing-release.list.save
  ubuntu-sdk-team-ubuntu-ppa-wily.list
  ubuntu-sdk-team-ubuntu-ppa-wily.list.distUpgrade
  ubuntu-sdk-team-ubuntu-ppa-wily.list.save
  ubuntu-sdk-team-ubuntu-tools-development-wily.list
  ubuntu-sdk-team-ubuntu-tools-development-wily.list.distUpgrade
  ubuntu-sdk-team-ubuntu-tools-development-wily.list.save

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