I have postfix and dovecot installed on CentOS 6 (linode) along with MySQL. The table and user is already set up, postfix installed fine, but dovecot gives me this error in the mail log:

Warning: Killed with signal 15 (by pid=9415 uid=0 code=kill)

The next few lines say this:

Apr  7 16:13:35 dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled)
Apr  7 16:13:35 dovecot: config: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf
Apr  7 16:13:35 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:1: protocols=pop3s is no longer supported. to disable non-ssl pop3, use service pop3-login { inet_listener pop3 { p$
Apr  7 16:13:35 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:5: ssl_cert_file has been replaced by ssl_cert = <file
Apr  7 16:13:35 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:6: ssl_key_file has been replaced by ssl_key = <file
Apr  7 16:13:35 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:8: namespace private {} has been replaced by namespace { type=private }
Apr  7 16:13:35 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:24: add auth_ prefix to all settings inside auth {} and remove the auth {} section completely
Apr  7 16:13:35 dovecot: config: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:25: auth_user has been replaced by service auth { user }

I am following directions for the install on CentOS 5 with changes in the dovecot.conf file from different sources specific to CentOS 6. So the dovecot.conf file might not be correct, but there is no good source I have found yet for making dovecot install correctly.

Can anyone tell me what the error above means? The terminal does not give any message as to start OK or FAIL. When I issue the service dovecot start command, it says: Starting Dovecot Imap: and nothing more.