CODEWITHSUNDEEP
mysqlbashubuntuapt
Venkat
Venkat

Reputation: 4299

Install MySQL on Ubuntu without a password prompt

How do I write a script to install MySQL server on Ubuntu?

sudo apt-get install mysql will install, but it will also ask for a password to be entered in the console.

How do I do this in a non-interactive way? That is, write a script that can provide the password? 

#!/bin/bash
sudo apt-get install mysql  # To install MySQL server

# How to write script for assigning password to MySQL root user
# End

Upvotes: 315

Views: 150289

Answers (4)

Dimitre Radoulov
Dimitre Radoulov

Reputation: 28000

sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password password your_password'
sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password_again password your_password'
sudo apt-get -y install mysql-server

For specific versions, such as mysql-server-5.6, you'll need to specify the version in like this:

sudo debconf-set-selections <<< 'mysql-server-5.6 mysql-server/root_password password your_password'
sudo debconf-set-selections <<< 'mysql-server-5.6 mysql-server/root_password_again password your_password'
sudo apt-get -y install mysql-server-5.6

For mysql-community-server, the keys are slightly different:

sudo debconf-set-selections <<< 'mysql-community-server mysql-community-server/root-pass password your_password'
sudo debconf-set-selections <<< 'mysql-community-server mysql-community-server/re-root-pass password your_password'
sudo apt-get -y install mysql-community-server

Replace your_password with the desired root password. (it seems your_password can also be left blank for a blank root password.)

If you writing a script then your shell may be not bash but dash/ash or some basic unix shell. These shells, unlike zsh, ksh93 and bash, doesn't support here-strings <<<. So you should use:

echo ... | sudo debconf-set-selections

Or a more readable print of multiline strings:

cat << EOF | sudo debconf-set-selections
mysql-server mysql-server/root_password password your_password
mysql-server mysql-server/root_password_again password your_password
EOF

You can check with debconf-get-selections command:

$ sudo debconf-get-selections | grep ^mysql
mysql-server    mysql-server/root_password_again    password    your_password
mysql-server    mysql-server/root_password  password    your_password

Upvotes: 440

BALAJI POTHULA
BALAJI POTHULA

Reputation: 51

Use:

sudo DEBIAN_FRONTEND=noninteractive apt-get install -y mysql-server

sudo mysql -h127.0.0.1 -P3306 -uroot -e"UPDATE mysql.user SET password = PASSWORD('yourpassword') WHERE user = 'root'"

Upvotes: 3

Mez
Mez

Reputation: 24933

This should do the trick

export DEBIAN_FRONTEND=noninteractive
sudo -E apt-get -q -y install mysql-server

Of course, it leaves you with a blank root password - so you'll want to run something like

mysqladmin -u root password mysecretpasswordgoeshere

Afterwards to add a password to the account.

Upvotes: 244

chrisfargen
chrisfargen

Reputation: 1516

Another way to make it work:

echo "mysql-server-5.5 mysql-server/root_password password root" | debconf-set-selections
echo "mysql-server-5.5 mysql-server/root_password_again password root" | debconf-set-selections
apt-get -y install mysql-server-5.5

Note that this simply sets the password to "root". I could not get it to set a blank password using simple quotes '', but this solution was sufficient for me.

Based on a solution here.

Upvotes: 31

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