Quote:
Originally Posted by Klug 
rsyncing the /opt/zimbra is not enough, you're missing other stuffs (zimbra user, crontab, etc).
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Klug is exactly right.
You want to rsync the folder to a remote location. Then install Zimbra (the version you have rsynced). Set it all up EXACTLY how your backup is, then stop zcs (this is VERY IMPORTANT, make sure EVERTHING is stopped0
Replace the Zimbra folder with your backup, and do a reinstall, and indicate that it's the upgrade.
rsync -av /opt/zimbra (other location)