The first error that I see on error log is

Setting local config zimbra_java_home to /opt/zimbra/java
*** Running as zimbra user: /opt/zimbra/bin/zmlocalconfig -f -e zimbra_java_home='/opt/zimbra/java'
Java HotSpot(TM) Client VM warning: Can't detect initial thread stack location - find_vma failed


then further down is
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checking isEnabled zimbra-store
zimbra-store is enabled
Global config attribute retrieved from ldap: zimbraSpamIsSpamAccount=Error: executing: /opt/zimbra/bin/zmlocalconfig -q -m export
Global config attribute retrieved from ldap: zimbraSpamIsNotSpamAccount=Error: executing: /opt/zimbra/bin/zmlocalconfig -q -m export
Global config attribute retrieved from ldap: zimbraNotebookAccount=Error: executing: /opt/zimbra/bin/zmlocalconfig -q -m export
checking isEnabled zimbra-mta
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This on FC5 with using this zcs-4.5.6_GA_1044.FC5.tgz or this
zcs-NETWORK-4.5.6_GA_1044.RHEL4.tgz

Can someone has an idea