Comment 2 for bug 1291058

The initial error is actually with the zoneminder package.

Preparing to replace zoneminder 1.25.0-1 (using .../zoneminder_1.25.0-1.1ubuntu1_i386.deb) ...^M
Stopping ZoneMinder: DBI connect('database=zm;host=localhost','zmuser',...) failed: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) at /usr/share/perl5/ZoneMinder/Config.pm line 89^M
Can't call method "prepare_cached" on an undefined value at /usr/share/perl5/ZoneMinder/Config.pm line 91.^M
BEGIN failed--compilation aborted at /usr/share/perl5/ZoneMinder/Config.pm line 100.^M
Compilation failed in require at /usr/share/perl5/ZoneMinder.pm line 33.^M
BEGIN failed--compilation aborted at /usr/share/perl5/ZoneMinder.pm line 33.^M
Compilation failed in require at /usr/bin/zmpkg.pl line 37.^M
BEGIN failed--compilation aborted at /usr/bin/zmpkg.pl line 37.^M
Zoneminder already stopped^M
^M
Aborting installation of zoneminder due to non-default symlinks in^M
/usr/share/zoneminder for the images and/or events directory, which could^M
result in loss of data. Please move your data in each of these directories to^M
/var/cache/zoneminder before installing zoneminder from the package.^M
dpkg: error processing /var/cache/apt/archives/zoneminder_1.25.0-1.1ubuntu1_i386.deb (--unpack):^M
 subprocess new pre-installation script returned error exit status 1^M
Starting ZoneMinder: DBI connect('database=zm;host=localhost','zmuser',...) failed: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) at /usr/share/perl5/ZoneMinder/Config.pm line 89^M
Can't call method "prepare_cached" on an undefined value at /usr/share/perl5/ZoneMinder/Config.pm line 91.^M
BEGIN failed--compilation aborted at /usr/share/perl5/ZoneMinder/Config.pm line 100.^M
Compilation failed in require at /usr/share/perl5/ZoneMinder.pm line 33.^M
BEGIN failed--compilation aborted at /usr/share/perl5/ZoneMinder.pm line 33.^M
Compilation failed in require at /usr/bin/zmpkg.pl line 37.^M
BEGIN failed--compilation aborted at /usr/bin/zmpkg.pl line 37.^M
failure^M
^M
invoke-rc.d: initscript zoneminder, action "start" failed.^M
invoke-rc.d: release upgrade in progress, error is not fatal^M

The already installed and configured bug (from dpkg) is well known and another duplicate is unnecessary, so I'm moving this to the zoneminder package.