View Linux boot System

To view the startup system type for Linux

The mainstream of Linux is currently dominated by two sysvinit and upstart, as well as the recently controversial systemd. So how do you check the boot system of your operating system?

Before online someone used the Pstree command to view the first line to make a judgment. Not particularly accurate.

I use Ls-l/sbin/init to think it is still more accurate.

For example:

Centos5

[Email protected] ~]# ll/sbin/init-rwxr-xr-x 1 root root 43496 Jul 2011/sbin/init

The results indicate that the starting system is sysvinit

Ubuntu

[Email protected]:~$ ll/sbin/initlrwxrwxrwx 1 root root 7 Sep-16:26/sbin/init-upstart*

The results indicate that the starting system is upstart

Centos7

[Email protected] ~]# ll/sbin/init lrwxrwxrwx. 1 root root 14:40/sbin/init. /lib/systemd/systemd

The results indicate that the starting system is SYSTEMD

This article from "Good Life, happy work!" "Blog, be sure to keep this provenance http://yjw1983.blog.51cto.com/265702/1615642

View Linux boot System