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Wikimedia Bugzilla Upgrade from 3.6.0 to 4.0

Note: This was tested on http://project2.wikimedia.org/bugzilla4 with the following software

Ubuntu 8.04.4
Mysql 5.0.51a
Apache2
Perl v5.8.8

Back up the database and the data directory in case anything goes wrong

Download and extract Bugzilla 4.0 .
Make the following Apache config changes

Apache Config Changes

Copy the following from the old Bugzilla installation

localconfig

data/

Checkout svn.wikimedia.org/svnroot/mediawiki/trunk/tools/bugzilla/bugzilla-4.0/skins/contrib/Wikimedia into skins/contrib/Wikimedia
Checkout svn.wikimedia.org/svnroot/mediawiki/trunk/tools/bugzilla/bugzilla-4.0/template/en/custom into template/en/custom
Checkout svn.wikimedia.org/svnroot/mediawiki/trunk/tools/bugzilla/bugzilla-4.0/extensions/Wikimedia into extensions/Wikimedia
Checkout svn.wikimedia.org/svnroot/mediawiki/trunk/tools/bugzilla/bugzilla-4.0/extensions/WeeklyReport into extensions/WeeklyReport
- ln -s extensions/WeeklyReport/component-report.cgi component-report.cgi
- ln -s extensions/WeeklyReport/weekly-bug-summary.cgi weekly-bug-summary.cgi
Run (this is where the database migration will happen so be sure you are ready):

perl checksetup.pl

After this Bugzilla should be up and running with the classic skin

Now change the following settings:
- Administration->Default Preferences->Bugzilla's general appearance (skin) = Wikimedia
- Administration->Default Preferences->Position of the Additional Comments box = After other comments