Had to reconfigure the mysql data directory today. Found this stackoverflow link to be spot on.
stackoverflow-change mysql default data directory ( I really don’t want to be accused of plagiarism)
Reproducing the content here [Just in case the link disappears]
1. Stop MySQL using the following command:
sudo /etc/init.d/mysql stop
2. Copy the existing data directory (default located in /var/lib/mysql) using the following command:
sudo cp -R -p /var/lib/mysql /newpath
3. Edit the MySQL configuration file with the following command:
gedit /etc/mysql/my.cnf
4. Look for the entry for datadir, and change the path (which should be /var/lib/mysql) to the new data directory.
5. In the terminal, enter the command:
sudo gedit /etc/apparmor.d/usr.sbin.mysqld
6. Look for lines beginning with /var/lib/mysql. Change /var/lib/mysql in the lines with the new path. Save and close the file.
7. Restart the AppArmor profiles with the command:
sudo /etc/init.d/apparmor reload
8. Restart MySQL with the command:
sudo /etc/init.d/mysql restart
9. Now login to MySQL, and you can access the same databases you had before.
Cheers !!
The Nonsense Logger !!