dist-upgrade，

dist-upgrade，

http://www.linuxserve.com/2015/06/how-to-enable-automatic-login-on-debian.html

http://www.cyberciti.biz/faq/howto-configuring-network-interface-cards-on-debian/

(screen)

https://www.linode.com/docs/security/upgrading/upgrade-to-debian-8-jessie

https://dsa.debian.org/howto/upgrade-to-wheezy/

http://www.tuicool.com/articles/nIvQnqJ

https://wiki.debian.org/zh_CN/Backports