最近在安裝程序時(shí)發(fā)現(xiàn)CentOS 7的開(kāi)機(jī)自定義配置文件(/etc/rc.local)內(nèi)配置了啟動(dòng)腳本不會(huì)開(kāi)機(jī)執(zhí)行；于是查看了下配置文件內(nèi)容發(fā)現(xiàn)了問(wèn)題的原因

[root@localhost ~]# cat /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

上面的意思說(shuō)這個(gè)文件是為了兼容性的問(wèn)題而添加的，建議創(chuàng)建自己的systemd服務(wù)或udev規(guī)則來(lái)在開(kāi)機(jī)時(shí)運(yùn)行腳本而不是使用這個(gè)文件；與以前的版本引導(dǎo)時(shí)的并行執(zhí)行相比較，這個(gè)腳本將不會(huì)在其他所有的服務(wù)后執(zhí)行；必須執(zhí)行“chmod +x /etc/rc.d/rc.local”來(lái)確保這個(gè)腳本在引導(dǎo)時(shí)執(zhí)行。

于是查看權(quán)限時(shí)發(fā)現(xiàn)/etc/rc.d/rc.local文件并沒(méi)有執(zhí)行權(quán)限

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

lrwxrwxrwx. 1 root root 13 Feb 3 23:29 /etc/rc.local -> rc.d/rc.local

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

-rw-r--r--. 1 root root 473 Feb 1 04:53 /etc/rc.d/rc.local

因此按照提示配置執(zhí)行權(quán)限并查驗(yàn)

[root@localhost ~]# chmod +x /etc/rc.d/rc.local

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

lrwxrwxrwx. 1 root root 13 Feb 3 23:29 /etc/rc.local -> rc.d/rc.local

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

-rwxr-xr-x. 1 root root 473 Feb 1 04:53 /etc/rc.d/rc.local

通過(guò)以上配置這個(gè)問(wèn)題得以解決

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