Thanks for all the suggestions. I will try read upgrade and upgrade.mysql a few more times.
I tried command rt-setup-database for upgrading MySQL database, but had following error. # /opt/rt3/sbin/rt-setup-database --dba root --prompt-for-dba-password --action upgrade In order to create or update your RT database, this script needs to connect to your mysql instance on localhost as root Please specify that user's database password below. If the user has no database password, just press return. Password: Working with: Type: mysql Host: localhost Name: rt3 User: rt_user DBA: root Enter RT version you're upgrading from: 3.2.3 Going to apply following upgrades: * 3.3.0 * 3.3.11 * 3.5.1 * 3.7.1 * 3.7.3 * 3.7.10 * 3.7.15 * 3.7.19 * 3.7.81 * 3.7.82 * 3.7.85 * 3.7.86 * 3.7.87 * 3.8.0 * 3.8.1 * 3.8.2 * 3.8.3 * 3.8.4 * 3.8.6 * 3.8.8 * 3.8.9 Enter RT version if you want to stop upgrade at some point, or leave it blank if you want apply above upgrades: IT'S VERY IMPORTANT TO BACK UP BEFORE THIS STEP Proceed [y/N]:y Processing 3.3.0 Now populating database schema. DBD::mysql::st execute failed: Duplicate column name 'ObjectType' at /wstore/www/rt3/sbin/../lib/RT/Handle.pm line 515. Do I really need to start from RT version 3.2.3? How do I find out certain columns are already in the database? Simon
