Upgrading from 5.0.5 to 5.0.6 and for some reason the upgrade just stops when it comes to starting mysql...

I also noticed some errors when the install verifies the message store..

Do you want to verify message store database integrity? [Y]
Verifying integrity of message store databases. This may take a while.
/opt/zimbra/mysql/bin/mysqlcheck: Got error: 1045: Access denied for user 'root'@'localhost' (using password: YES) when trying to connect
Generating report
No errors found
command failed