Since PHP7 is prerequisite for Drupal8, I had to upgrade the Php version to 7 from 6 and also the Mysql versions which certainly introduced multiple changes in the implementation.
Following are some of the links which were extremely useful in setting up the LAMP setup correctly.
– https://www.linode.com/docs/web-servers/lamp/lamp-on-debian-8-jessie- https://www.linode.com/docs/web-servers/apache/apache-web-server-debian-8- https://www.linode.com/stackscripts/view/116524-hmorris-LAMP+on+Debian+9 ( For installing Php7 )
It is important to know that once you have upgraded to MySQL to Version 5.7, you cannot login into PhpMyadmin as the root user. Following link helped me understand that.https://askubuntu.com/questions/763336/cannot-enter-phpmyadmin-as-root-mysql-5-7/763359#763359
1. Run mysql_secure_installation to remove the test database and any extraneous user permissions added during the initial installation process:2. sudo mysql_secure_installation3. It is recommended that you select yes (y) for all questions. If you already have a secure root password, you do not need to change it.
Set Up a MySQL DatabaseNext, you can create a database and grant your users permissions to use databases.1. Log in to MySQL:2. mysql -u root -p3. Enter MySQL’s root password when prompted. 4. Create a database and grant your users permissions on it. Change the database name (webdata) and username (username). Change the password (password):5. Create database webdata;6. Grant all on webdata.* to ‘username’ identified by ‘password’;7. Exit MySQL:8. Quit
Some of the commands which always help me while reinstalling Php7, PMA, MYSQL are:- – UPDATE mysql.user SET Password=PASSWORD(‘password’) WHERE User=’root’;FLUSH PRIVILEGES; – CREATE USER ‘newuser’@’localhost’ IDENTIFIED BY ‘password’; ( This is for creating a new user which you will use for logging into PMA as root users cannot login from Mysql 5.7 onwards)- GRANT ALL PRIVILEGES ON * . * TO ‘newuser’@’localhost’; ( This is used for granting super user permissions to the new user created ).