树莓派安装nextcloud、Seafile
参考博文:http://bbs.eeworld.com.cn/thread-505579-1-1.html
http://blog.sina.com.cn/s/blog_6f55d8210102xial.html
给树莓派挂载移动硬盘或U盘:http://shumeipai.nxez.com/2013/09/08/raspberry-pi-to-mount-the-removable-hard-disk.html
nextcloud:https://wzfou.com/nextcloud/
https://www.moerats.com/archives/429/