Mysql问题：Failed to stop mysqld.service: Unit mysqld.service not loaded

1 环境：ubuntu

2 问题描述：
停止mysql服务，输入命令:

service mysqld stop

出现如下报错：

root@iZ2ze8qk0tdrzqj7sd1kZ:/usr/bin#  service mysqld stopFailed to stop mysqld.service: Unit mysqld.service not loaded.

3 解决：
输入命令：

systemctl enable mysql.service

执行结果：

root@iZ2ze8qk0tdrzqj7sd1kZ:~# systemctl enable mysql.serviceSynchronizing state of mysql.service with SysV init with /lib/systemd/systemd-sysv-install...Executing /lib/systemd/systemd-sysv-install enable mysqlinsserv: can not symlink(../init.d/aegis, ../rc2.d/S02aegis): File existsinsserv: can not symlink(../init.d/aegis, ../rc3.d/S02aegis): File existsinsserv: can not symlink(../init.d/aegis, ../rc4.d/S02aegis): File existsinsserv: can not symlink(../init.d/aegis, ../rc5.d/S02aegis): File exists

停止mysql服务，再次输入命令：

systemctl stop mysql

4 验证：
查询mysql进程，输入命令：

ps -aux|grep mysql

执行结果：

root@iZ2ze8qk0tdrzqj7sd1kZ:~# ps -aux|grep mysqlroot      4765  0.0  0.0  14224  1088 pts/0    S+   15:20   0:00 grep --color=auto mysql

没有mysql进程，说明mysql已经关闭。

来源地址：https://blog.csdn.net/afei8080/article/details/129405602