If you trying install mysql on fresh Debian VPS (OpenVZ template):

Stopping MySQL database server: mysqld.
/var/lib/dpkg/info/mysql-server-5.5.postinst: line 146: logger: command not found
ATTENTION: An error has occured. More info is in the syslog!
/var/lib/dpkg/info/mysql-server-5.5.postinst: line 236: logger: command not found
dpkg: error processing mysql-server-5.5 (–configure):
subprocess installed post-installation script returned error exit status 127
dpkg: dependency problems prevent configuration of mysql-server:
mysql-server depends on mysql-server-5.5; however:
Package mysql-server-5.5 is not configured yet.

Quick fix:

apt-get install bsdutils

also you can get such errors:

dpkg: error processing mysql-server (–configure):
dependency problems – leaving unconfigured
Errors were encountered while processing:
mysql-server-5.5
mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)