I try to install zimbra 7 on ubuntu 10.04 with database mysql.
In installation process i found eror like this

Could not open required defaults file: /opt/zimbra/conf/my.cnf
Fatal error in defaults handling. Program aborted
/opt/zimbra/mysql/bin/mysqlcheck: Got error: 2002: Can't connect to local MySQL server through socket '/opt/zimbra/db/mysql.sock' (2) when trying to connect
No errors found
command failed
but installation progress continued.What caused that eror ?
in installation prgrress continued, will are there problem on zimbra later ?

how to solve these..? help me please