Today, I tried an upgrade from the M3 beta to the latest GA release (on OS X 10.4).
After a couple aborted attempts at re-running zmsetup.pl post-upgrade (the service stop was failing) I was able to get everything ready to go. However, now when I try to start the services (zmcontrol start) I get:
Error: assertion '-x /opt/zimbra/mysql/bin/mysqld_safe' failed
Any ideas where I can look to get the system back up and running would be greatly appreciated!