数据库存储目录迁移完成 为什么apparmo r和 mysql 都无法重启

wangping@wangping:/var/lib$ sudo service apparmor reload
[sudo] password for wangping:
reload: Unknown instance:
wangping@wangping:/var/lib$ sudo service mysql restart
stop: Unknown instance:
start: Job failed to start
wangping@wangping:/var/lib$