MySQL在Ubuntu上启动出错
AppArmor parser error for /etc/apparmor.d/usr.sbin.mysqld in /etc/apparmor.d/usr.sbin.mysqld at line 9: Could not open 'abstractions/mysql'
执行下面的三条命了解决：
rm -rf /etc/apparmor.d/abstractions/mysql rm -rf /etc/apparmor.d/cache/usr.sbin.mysqld find / -name 'mysql*' -exec rm -rf {} \;
参考：
