Downgrade a patch using YUM

To downgrade a patch on your TeamForge site using the YUM installer, you need to specify the TeamForge packages for the services enabled on the box and the list of CN-* packages that changed in that patch.

1. Stop TeamForge.
   • /etc/init.d/httpd stop
   • /etc/init.d/postgresql-9.0 stop
   • /etc/init.d/collabnet stop
2. Find the packages contained in the patch.

   For example, let's say you ran this command:

   • cat /opt/collabnet/teamforge/dist/conf/patches
   and got this result:

   118.1: CN-runtime,CN-jakarta-log4j,
   118.2: CN-quartz,CN-runtime,
   					

3. Run the downgrade command.

   To downgrade from patch level 1 to patch level 0 in the above example, here's the command:

   • yum downgrade teamforge teamforge-app teamforge-etl teamforge-scm teamforge-database TeamForge-installer CN-jakarta-log4j CN-runtime
   To downgrade from patch level 2 to patch level 1 in the example, here's the command:
   • yum downgrade teamforge teamforge-app teamforge-etl teamforge-scm teamforge-database TeamForge-installer CN-runtime CN-quartz
   Note: During the downgrade, the site-options.conf file is automatically backed up into /opt/collabnet/teamforge-installer//6.1.1.0/conf.
4. Recreate the runtime environment.
   • cd /opt/collabnet/teamforge-installer/6.1.1.0
   • ./install.sh -r -n -V -I -d /opt/collabnet/teamforge
5. Start TeamForge.
   • /etc/init.d/httpd start
   • /etc/init.d/postgresql-9.0 start
   • /etc/init.d/collabnet start
6. Verify that the patch was reverted.
   1. Log onto the site as a site administrator.
   2. On the Admin tab, click System Tools.
   3. Click Build Information and observe which patches are present.