因为Jetson TX1 是 armhf 架构，加上国内GW对外网的封锁，用hosts也没有用，会出现Hash no match的错误。只能找国内的源。
国内的源支持armhf的很少。具体操作如下
Ubuntu armhf版本的源网址不同于普通Ubuntu系统，如果采用如下网址会出现问题，导致sudo apt-get update出现Error。 deb http://archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse 应该要采用如下网址： deb http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty main multiverse restricted universe deb http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty-backports main multiverse restricted universe deb http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty-proposed main multiverse restricted universe deb http://mirrors.ustc.edu.cn/ubuntu-ports trusty-security main multiverse restricted universe deb http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty-updates main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty-backports main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty-proposed main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty-security main multiverse restricted universe deb-src http://mirrors.ustc.edu.cn/ubuntu-ports/ trusty-updates main multiverse restricted universe 具体更新方法如下，首先打开shell，输入： cd /etc/apt cp sources.list sources.list.backup sudo gedit sources.list 删除文件中所有文字，将上面的网址复制到sources.list中，保存并退出。之后输入： sudo apt-get update 等待更新结束即可。