如何修改mysql的存储路径？

/etc/init.d/mysqld stop

cp -a -R /var/lib/mysql/* /home/mysql/
chown mysql:mysql -R /home/mysql/
chmod 777 /home/mysql/ -R

vi /etc/my.cnf
[mysqld]
datadir=/home/mysql
socket=/home/mysql/mysql.sock

vi /etc/init.d/mysqld
datadir "/home/mysql"

vi /usr/bin/mysqld_safe
datadir "/home/mysql"
DATADIR=/home/mysql

rm -fr /var/lib/mysql/mysql.sock
ln -s /home/mysql/mysql.sock /var/lib/mysql/mysql.sock