Failed to issue method call: Unit mysql.service failed to load: No such file or directory的解决办法
1、软件环境：
OpenSUSE 13.1 x64
MySQL 5.6.20 x64
2、采用RPM包安装MySQL 5.6.20
# rpm -ivh MySQL-server-5.6.20-1.sles11.x86_64.rpm # rpm -ivh MySQL-client-5.6.20-1.sles11.x86_64.rpm # rpm -ivh MySQL-devel-5.6.20-1.sles11.x86_64.rpm # rpm -ivh MySQL-shared-5.6.20-1.sles11.x86_64.rpm
3、查看MySQL服务
# /etc/init.d/mysql status MySQL is not running failed mysql.service Loaded: not-found (Reason: No such file or directory) Active: inactive (dead) Aug 22 15:42:26 173-168-58-139 systemd[1]: Stopped LSB: Start the MySQL database server.
可见，MySQL服务未启动。
4、启动MySQL服务
# /etc/init.d/mysql start redirecting to systemctl start mysql Failed to issue method call: Unit mysql.service failed to load: No such file or directory.报错，无法启动MySQL服务。
用systemctl方法
# systemctl start mysql.service仍然报如下错误
Failed to issue method call: Unit mysql.service failed to load: No such file or directory. See system logs and 'systemctl status mysql.service' for details.
5、解决方法
# systemctl enable mysql.service
# systemctl start mysql # ps -ef | grep mysql root 27930 1 0 16:30 ? 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/173-168-58-139.pid mysql 28045 27930 0 16:30 ? 00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/173-168-58-139.err --pid-file=/var/lib/mysql/173-168-58-139.pid root 28074 25545 0 16:30 pts/1 00:00:00 grep --color=auto mysql可见，MySQL已经正常运行。
