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I'm currently trying to automate my Postfix installation and most things work really... but I can't seem to stop postfix-policyd asking for the MySQL root password.

Here is what I got so far:

echo 'dbconfig-common postfix-policyd/dbconfig-install boolean false' | debconf-set-selections

echo 'postfix-policyd postfix-policyd/dbconfig-install boolean false' | debconf-set-selections

echo 'postfix-policyd postfix-ploicyd/internal/skip-preseed boolean false' | debconf-set-selections

echo 'dbconfig-common dbconfig-common/internal/skip-preseed boolean false' | debconf-set-selections

echo 'postfix-policyd postfix-policyd/dbconfig-upgrade boolean false' | debconf-set-selections

echo 'postfix-policyd/dbconfig-reinstall boolean false' | debconf-set-selections

echo 'dbconfig-common dbconfig-reinstall boolean false' | debconf-set-selections

echo "postfix-policyd postfix-policyd/internal/reconfiguring boolean false" | debconf-set-selections

It seems postfix-policyd just ignores the

postfix-policyd postfix-policyd/dbconfig-install boolean false

How do I fix this?

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up vote 7 down vote accepted

In my script I disable the interactive frontend first:
export DEBIAN_FRONTEND=noninteractive

Then I set al the preferences, f.e.:
postconf -e "mynetworks =, ${NETWORK_CIDR}"

You can then re-enable it by unsetting it:

Or, you can make it very easy by just running this command:
DEBIAN_FRONTEND=noninteractive apt-get install postfix-policyd

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Oh man, this is awesome. Works like a charm! +1 for you! – Pierre Dennert Mar 5 '11 at 17:09

To set the MySQL password you need to do the following for your script:


#MySql settings
echo "mysql-server-5.6 mysql-server/root_password password $ADMIN_PASS" \
  | debconf-set-selections

echo "mysql-server-5.6 mysql-server/root_password_again password $ADMIN_PASS" \
  | debconf-set-selections

Just change the numbers for the version of MySQL

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