Linux reboot与init 6区别

Reboot与init 6的区别 - flyingcloud_2008的专栏 - CSDN博客
https://blog.csdn.net/flyingcloud_2008/article/details/5886646

Linux init详解 (0,1,2,3,4,5,6) - kevinboy - 博客园
http://www.cnblogs.com/kevin-boy/p/3259928.html