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This bug was started by an automated bug reporting thing.  I'm not 100%
sure what happened, as this was during an upgrade from Gutsy to Hardy
and a lot was going on.

At some point during the upgrade, a dialog box popped up asking what I
wanted to do about dovecot.conf.  I chose to view the differences and
determined that I wanted to do a manual merge.  After hitting Next, it
took me back to the list of options.  Since there is no "manually merge
the files" option, I chose "start a new shell to examine the situation".
It dropped me into a root shell inside the embedded terminal in the
distribution upgrade application with no instructions (nothing like
"Edit /tmp/dovecot.conf.new to your liking, then exit the shell.").  Not
knowing what I should do, I hit Ctrl-D to log out of the shell.  At this
point, both the distribution upgrade application and debconf were
frozen.  The distribution upgrade application was still redrawing when
something would obscure the window and then move away, but debconf did
not redraw.

I got to a terminal, did 'ps -ef' and looked around for what might be
happening.  This is what I remember seeing, which could be wrong:  The
distribution upgrade application had a child process:  debconf.  The
debconf process had its own child process:  ucf.  The ucf process said
"<defunct>" next to it in the 'ps -ef' output.  I tried 'sudo kill -9
<pid_of_defunct_ucf>' but nothing happened.  I then killed the debconf
process and the upgrade app sprang back to life saying that something
had exited with an error.  I hit OK and the upgrade continued as if no
problem had occurred.

At the very end of the upgrade, an automated bug reporting thing popped
up.  Actually, three bug reporting dialog boxes popped up:  one for
dovecot ("package dovecot-common 1:1.0.10-1ubuntu5 failed to
install/upgrade: "), one for update-manager ("package update-manager
1:0.87.24 failed to install/upgrade: ErrorMessage: SystemError in
cache.commit(): E:Sub-process /usr/bin/dpkg returned an error code
(1)"), and one for nautilus ("nautilus crashed with SIGSEGV").  After
clicking "report" for all three, I got the following message in a dialog
box:  "Could not install the upgrades.  The upgrade aborts now.  Your
system could be in an unusable state.  A recovery will run now (dpkg
--configure -a)."  I hit OK and the distribution upgrade app closed.

ProblemType: Package
Architecture: i386
Date: Wed Apr 23 22:54:38 2008
DistroRelease: Ubuntu 8.04
ErrorMessage:
 ErrorMessage: subprocess post-installation script returned error exit status 
143
NonfreeKernelModules: openafs nvidia
Package: dovecot-common 1:1.0.10-1ubuntu5
PackageArchitecture: i386
SourcePackage: dovecot
Title: package dovecot-common 1:1.0.10-1ubuntu5 failed to install/upgrade: 
Uname: Linux 2.6.22-14-generic i686

** Affects: dovecot (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: apport-package
-- 
Selecting "start a new shell to examine..." then closing the shell caused 
update to freeze
https://bugs.edge.launchpad.net/bugs/221269
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