Public bug reported:
I was running "do-release-upgrade -d" to get from 10.04 to 12.04.
Partway through, screen (running as byobu) disappeared. I can see that
the upgrade is still running and trying to ask me questions I can't
answer because I can't reconnect to the screen session.
Expected Result: upgrade runs inside screen and completes
Actual Result: screen crashes making the currently-running upgrade inaccessible
to user
<snip earlier upgrade log>
Installing new version of config file /etc/byobu/socketdir ...
Setting up fakeroot (1.18.2-1) ...
Setting up dctrl-tools (2.18ubuntu1) ...
Setting up diffstat (1.54-1) ...
Setting up distro-info-data (0.8ubuntu0.1) ...
Setting up distro-info (0.8.2) ...
Setting up python-distro-info (0.8.2) ...
-----------------------------------------------------------------------------
0*&$ shell 1@$ shell 2@$ shell 3-@$ shell 4@$ shell 5@$ shell
maco Menu:<F9>
U
2012-06-01 22:56:17
Error: Cannot find master process to attach to!
maco@lucid:~$
maco@lucid:~$
maco@lucid:~$ screen -r
There is a screen on:
3498.pts-0.lucid (04/09/2012 09:21:02 AM) (Dead ???)
Remove dead screens with 'screen -wipe'.
There is no screen to be resumed.
maco@lucid:~$ ps -ef | grep upgrade
maco 9969 17012 0 23:35 pts/6 00:00:00 grep --color=auto upgrade
root 26066 1 0 18:50 ? 00:00:00 SCREEN -e \0\0 -L -c screenrc
-S ubuntu-release-upgrade-screen-window /tmp/tmphNKbs8/precise --mode=server
--frontend=DistUpgradeViewText
root 28183 28167 0 22:56 pts/9 00:00:00 whiptail --backtitle Package
configuration --title Configuring postgresql-common --output-fd 11 --nocancel
--msgbox Obsolete major version 8.4??The PostgreSQL version 8.4 is obsolete,
but the server or client ?packages are still installed. Please install the
latest packages ?(postgresql-9.1 and postgresql-client-9.1) and upgrade the
existing ?clusters with pg_upgradecluster (see manpage).??Please be aware that
the installation of postgresql-9.1 will ?automatically create a default cluster
9.1/main. If you want to ?upgrade the 8.4/main cluster, you need to remove the
already existing?9.1 cluster (pg_dropcluster --stop 9.1 main, see manpage for
?details).??The old server and client packages are no longer supported. After
the?existing clusters are upgraded, the postgresql-8.4 and
?postgresql-client-8.4 packages should be removed.??Please see
/usr/share/doc/postgresql-common/README.Debian.gz for ?details. 25 74
** Affects: screen (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1007658
Title:
Screen crashed during do-release-upgrade, won't resume
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