Database

MySQL Installation #

sudo apt purge mysql-server mysql-client mysql-common mysql-server-core-* mysql-client-core-*

sudo rm -rf /etc/mysql /var/lib/mysql /var/log/mysql

sudo apt autoremove

sudo apt autoclean

sudo reboot

sudo apt install mysql-server-core-8.0 mysql-server-8.0

Grant Root User #

On some systems, like Ubuntu, MySQL uses the Unix auth_socket plugin by default.

Basically it means that: db_users using it, will be “authenticated” by the system user credentials. You can see if your root user is set up like this by doing the following:

sudo mysql -u root # I had to use "sudo" since it was a new installation

mysql> USE mysql;
mysql> SELECT User, Host, plugin FROM mysql.user;

+------------------+-----------------------+
| User             | plugin                |
+------------------+-----------------------+
| root             | auth_socket           |
| mysql.sys        | mysql_native_password |
| debian-sys-maint | mysql_native_password |
+------------------+-----------------------+

As you can see in the query, the root user is using the auth_socket plugin.

There are two ways to solve this:

1. You can set the root user to use the mysql_native_password plugin
2. You can create a new db_user with you system_user (recommended)

sudo mysql -u root # I had to use "sudo" since it was a new installation

mysql> USE mysql;
mysql> UPDATE user SET plugin='mysql_native_password' WHERE User='root';
mysql> FLUSH PRIVILEGES;
mysql> exit;

sudo service mysql restart