As a developer, sometimes I need to run some CMS on my laptop, so I installed what is, in my opinion, the best combination to run a website Apache and MySql, but why do I need Mysql on startup? It’s unnecessary, so let’s remove from our machine startup:

First of all, open the mysql configuration file with root privileges

sudo gedit /etc/init/mysql.conf

Find these lines in the file

start on (net-device-up
          and local-filesystems
	  and runlevel [2345])
stop on runlevel [016]

Comment them using #

#start on (net-device-up
#          and local-filesystems
#	  and runlevel [2345])
stop on runlevel [016]

Now it’s possible to start it manually using:

sudo service mysql start