a new problem about mysql

following prompt appears and installation hangs..any suggestion?

┤ Configuring mysql-server ├────────────────────────────────────────────────────

Install Hints

MySQL will only install if you have a NON-NUMERIC hostname that is resolvable vi
" myhostname".

A new mysql user "debian-sys-maint" will be created. This mysql account is used

Please remember to set a PASSWORD for the MySQL root user! If you use a /root/.m
/usr/share/doc/mysql-server/README.Debian for more information.