Error when upgrading from 3.1 -> 3.1.1

I've just tried to upgrade my Zimbra installation from 3.1 to 3.1.1 and it failed with the following errors:

Do you wish to upgrade? [Y] y

Select the packages to install
Upgrading zimbra-core
Upgrading zimbra-ldap
Upgrading zimbra-logger
Upgrading zimbra-mta
Upgrading zimbra-snmp
Upgrading zimbra-store
Upgrading zimbra-apache
Upgrading zimbra-spell

Installing:
zimbra-core
zimbra-ldap
zimbra-logger
zimbra-mta
zimbra-snmp
zimbra-store
zimbra-apache
zimbra-spell

The system will be modified. Continue? [N] y

Shutting down zimbra mail

Backing up ldap


Removing existing packages

zimbra-ldap...done
zimbra-logger...done
zimbra-mta...done
zimbra-snmp...done
zimbra-store...done
zimbra-spell...done
zimbra-apache...done
zimbra-core...done

Removing deployed webapp directories
Installing packages

zimbra-core..../util/modules/packages.sh: line 102: [: GA: integer expression expected
zimbra-core......zimbra-core-3.1.1_GA_394.RHEL4-20060505121349.i386.rpm...FAILED
###ERROR###

zimbra-core-3.1.1_GA_394.RHEL4-20060505121349.i386.rpm installation failed

Installation cancelled

Unfortunately, now I can't start the server at all and it now prompts me for a password which I don't know... does anybody know I get back to a working server?

Did you take a backup of the /opt/zimbra directory first? If you did then restore that and try installing the version of zimbra you had installed. If you didn't take a backup then do it now and try installing the previous version of zimbra. Have a search of the forums, there's several posts about restoring your system.

Thanks Bill... I realised that upgrade script was failing to remove the zimbra-core and zimbra-mta RPM's. Once I did a rpm -e --nodeps etc. it seemed to continue... I will make a copy of /opt/zimbra though!

Cheers

John