Solve the problem of not executing centos7 boot/etc/rc. local

Solve the problem of not executing centos7 boot/etc/rc. local

Background: Recently, a new server is deployed on the client, and the system is Centos7. I wrote a script for starting the system. The detected/etc/rc. local won't be started and executed, so I checked the/etc/rc. local file carefully and found the cause of the problem.

#!/bin/bash

#THISFILEISADDEDFORCOMPATIBILITYPURPOSES

#

#Itishighlyadvisabletocreateownsystemdservicesorudevrules

#torunscriptsduringbootinsteadofusingthisfile.

#

#Inconstrasttopreviousversionsduetoparallelexecutionduringboot

#thisscriptwillNOTberunafterallotherservices.

#

#Pleasenotethatyoumustrun'chmod+x/etc/rc.d/rc.local'toensure

#thatthisscriptwillbeexecutedduringboot.

Translation:

# This file is added for compatibility issues.

#

# We strongly recommend that you create your own systemd service or udev rules to run scripts at startup instead of using this file.

#

# This script will not be executed after all other services compared with the parallel execution during previous version boot.

#

# Remember, you must execute "chmod + x/etc/rc. d/rc. local" to ensure that this script is executed during boot.

So I confirmed the permission for/etc/rc. local.

[root@localhost~] #ll/etc/rc.local

Lrwxrwxrwx.1rootroot13 October /etc/rc . local ->rc.d /rc . local

[root@localhost~] #ll/etc/rc.d/rc.local

-Rw-r --. 1rootroot477, December 7, June 10 /etc/rc .d /rc . local

/Etc/rc. d/rc. local has no execution permission, so it is executed according to the description.

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

After the restart, it is found that/etc/rc. local can be executed.

It is estimated that this method will be discarded as the version is upgraded.