Quote:
Originally Posted by brained  You want to migrate first, then upgrade. - Install the exact same 4.0.4 on the new server
- Rsync the /opt/zimbra over from the old
- Re-run the 4.0.4 install script on the new server
- Start up the 4.0.4 on the new server and make sure it's running properly (LDAP, MySql, message store, etc) Really make sure - you don't want to try to upgrade a broken system
- Shut Zimbra down and then -
- Then run the install script for 4.5.6
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Brained is 100% correct on the Open Source edition
Some of us (brained included) have assisted in many open source migrations. Forgive us for thinking that's what you have
john