Ubuntu安装MySQL5.7并配置数据存储路径的方法步骤

sudo apt-get install mysql-server

sudo apt-get install -f

mkdir /data/mysql

sudo cp -R /var/lib/mysql/* /data/mysql
sudo chown -R mysql:mysql /data/mysql     <==修改新路径的访问权限
sudo service mysql stop       <==停止mysql服务

rm -rf /database/mysql/ib_logfile0
rm -rf /database/mysql/ib_logfile1

sudo vim /etc/apparmor.d/usr.sbin.mysqld

sudo /etc/init.d/apparmor restart
sudo /etc/init.d/mysql restart

mysql>show variables like '%dir%'; <==当显示datadir 为/data/mysql时,修改成功

root@ww:~# mkdir /data/mysql
root@ww:~# sudo cp -R /var/lib/mysql/* /data/mysql
root@ww:~# sudo chown -R mysql:mysql /data/mysql
root@ww:~# sudo service mysql stop
root@ww:~# vim /etc/mysql/mysql.conf.d/mysqld.cnf
root@ww:~# sudo vim /etc/apparmor.d/usr.sbin.mysqld
root@ww:~# sudo /etc/init.d/apparmor restart
[ ok ] Restarting apparmor (via systemctl): apparmor.service.
root@ww:~# sudo /etc/init.d/mysql restart
[ ok ] Restarting mysql (via systemctl): mysql.service.