Go How to boot the CentOS Setup program

Under the CentOS system, there are two main ways to set up your own installed programs to boot.
1, the command to add the startup program to the/etc/rc.d/rc.local file, such as the following is the Setup boot httpd.

#!/bin/sh## This script is executed *after* all the other init scripts.# you can put your own initialization stuff in Here if you don ' t# want-to-do the full Sys V style init stuff. Touch/var/lock/subsys/local/usr/local/apache/bin/apachectl start

2. Add the written startup script to the directory/etc/rc.d/init.d/, then use the command chkconfig to set the boot up.

Chkconfig function Description: Check, set the various services of the system.

Syntax: chkconfig [--add][--del][--list][system service] or Chkconfig [--level < rank code >][system service][on/off/reset]

--add Adding services

--del Deleting a service

--list viewing the Start status of each service

For example, we set up self-booting MySQL:

1 #将mysql启动脚本放入所有脚本运行目录/etc/rc.d/init.d 2 cp/lamp/mysql-5.0.41/support-files/mysql.server/etc/rc.d/init.d/mysqld 3  4 #改变权限 5 chown root.root/etc/rc.d/init.d/mysqld 6  7 #所有用户都可以执行, only root can modify the 8 chmod 755/etc/rc.d/init.d/mysql D 9 #将mysqld put into the Linux boot management system one by one chkconfig--add mysqld12 #查看全部服务在各运行级状态14 chkconfig--list mysqld15 #只要运行级别3启动, others off Closed Chkconfig--levels 245 mysqld off

For example: We write the httpd script and put it into the/etc/rc.d/init.d/directory, using

Chkconfig--add httpdchkconfig httpd on

The command is set to boot.

3. Add the command of the startup program to the/etc/rc.d/rc.sysinit file

Script/etc/rc.d/rc.sysinit, complete system service program startup, such as system environment variable setting, setting system clock, loading font, checking loading file system, generating system boot information log file, etc.

For example, we set up a self-booting Apache:

echo "/usr/local/apache2/bin/apachectl start" >>/etc/rc.d/rc.sysinit

Go How to boot the CentOS Setup program