Installing Percona/MySQL unattended on Ubuntu

Question

I can install MYSQL on Ubuntu without prompts with the code below:

dbpass=\"mydbpassword\"
export DEBIAN_FRONTEND=noninteractive
echo mysql-server-5.1 mysql-         


        

Answer 1

Think I figured it out

echo "percona-server-server-5.5 mysql-server/root_password password mypassword" | debconf-set-selections
echo "percona-server-server-5.5 mysql-server/root_password_again password mypassword" | debconf-set-selections

Don't use export DEBIAN_FRONTEND=noninteractive. If the debconf entries are correct, then you won't be prompted anyway. If they are incorrect and you use noninteractive then the prompt will continue with a blank password.

Since Percona 'hooks into' MySQL check that it installed correctly using

service mysql status

and you will know it is percona if you see something like

mysql.service - LSB: Start and stop the mysql (Percona Server) daemon

Then finally check the password was set correctly

mysql -u user -pmypassword

EDIT: That said, for a newer version of percona, F21's answer worked for me. You can check the entries in /var/cache/debconf/passwords.dat