写在rc.local里面的脚本开机未执行

问题描述：最近安装了CentOS7以及中标麒麟7，发现写在rc.local里面的脚本开机未执行

通过ll /etc/rc.local查看有执行权限

[root@room8pc205 ~]# ll /etc/rc.local 
lrwxrwxrwx. 1 root root 13 5月   6 2017 /etc/rc.local -> rc.d/rc.local

解决办法及思路：

1、查看rc.local其中第四段明确指出你必须给/etc/rc.d/rc.local赋予执行权限，来确保在启动的时候可以执行此脚本

[root@room8pc205 ~]# vim /etc/rc.local

#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.

touch /var/lock/subsys/local
mount -o loop /ISO/rhel-server-7.2-x86_64-dvd.iso /mnt/rh7

2、通过ll查看/etc/rc.d/rc.local确实没有执行权限，执行chmod +x /etc/rc.d/rc.local后，再次reboot测试rc.local里面的脚本成功执行

[root@room8pc205 ~]# ll /etc/rc.d/rc.local
-rw-r--r--. 1 root root 532 11月  5 13:47 /etc/rc.d/rc.local