Centos 7.0设置/etc/rc.local无效问题解决

工作中发现Centos 7的系统在rc.local添加开机启动命令，但重启后发现无效，试了多次还是一样

检查系统rc.local服务运行情况

systemctl | grep "rc.local"

rc-local.service loaded active exited /etc/rc.d/rc.local Compatibility

发现运行正常

随后查看rc.local文件

cat /etc/rc.local

发现这么一句话

# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure

# that this script will be executed during boot.

ll /etc/rc.local

lrwxrwxrwx. 1 root root 13 [2017-12-07 11:50] /etc/rc.local -> rc.d/rc.local

由于/etc/rc.local是/etc/rc.d/rc.local的软连接，所以必须确保/etc/rc.local和/etc/rc.d/rc.local都有x权限(可执行)

执行命令

chmod +x /etc/rc.d/rc.local

重启，一切正常，问题解决。