- 再Ubuntu环境下，修改datadir后，重启不成功，按照以下的方法，终于ok
http://www.thinksaas.cn/group/topic/347966/
- Stop MySQL using the following command:
sudo /etc/init.d/mysql stop - Copy the existing data directory (default located in /var/lib/mysql) using the following command:
sudo cp -R -p /var/lib/mysql /newpath - edit the MySQL configuration file with the following command:
gedit /etc/mysql/my.cnf - Look for the entry for datadir, and change the path (which should be /var/lib/mysql) to the new data directory.
- In the terminal, enter the command:
sudo gedit /etc/apparmor.d/usr.sbin.mysqld - Look for lines beginning with /var/lib/mysql. Change /var/lib/mysql in the lines with the new path.
- Save and close the file.
- Restart the AppArmor profiles with the command:
sudo /etc/init.d/apparmor reload - Restart MySQL with the command:
sudo /etc/init.d/mysql restart - Now login to MySQL, and you can access the same databases you had before.