메일서버 설정 과정에서 이런 문제 어떻게 해결해야 할까요?

제가 굵은 글씨 표시한 부분이 문제인 거 같은데요.

인스톨 과정이 이 상태 그대로 멈춰버리네요.
해결방법을 모르겠는데, 

아시는 분들 답변 좀 부탁드립니다.

Setting up sendmail-bin (8.15.2-3) ...

Updating sendmail environment ...

Reading configuration from /etc/mail/sendmail.conf.

Validating configuration.

Writing configuration to /etc/mail/sendmail.conf.

Writing /etc/cron.d/sendmail.

Disabling HOST statistics file(/var/lib/sendmail/host_status).

Reading configuration from /etc/mail/sendmail.conf.

Validating configuration.

Writing configuration to /etc/mail/sendmail.conf.

Writing /etc/cron.d/sendmail.

Could not open /etc/mail/databases(No such file or directory), creating it.

Reading configuration from /etc/mail/sendmail.conf.

Validating configuration.

Creating /etc/mail/databases...

Checking filesystem, this may take some time - it will not hang!

  ...   Done.

Checking for installed MDAs...

Creating /etc/mail/sasl/sasl.m4...

Ah, you're setup with SASL2 !

Unfortunately, there is no automagic way to migrate to /etc/sasldb2 :(

You'll want to make sure /etc/default/saslauthd is setup to start,

and has at least MECHANISMS="pam" !

If you find out what more is needed, please let me know!

Creating/Updating SSL(for TLS) information

Creating /etc/mail/tls/starttls.m4...

Creating SSL certificates for sendmail.