Ubuntu 安装了NVIDIA的驱动还有DriveWokrs之后，好像把系统添加了arm64的架构，因此，在源更新的时候，也会更新arm64相关的源，但是问题在于，用sudo apt-get update的时候，找不到源，会报错
Err:28 http://us.archive.ubuntu.com/ubuntu xenial/main arm64 Packages
Err:54 http://us.archive.ubuntu.com/ubuntu xenial-updates/main arm64 Packages
Err:78 http://us.archive.ubuntu.com/ubuntu xenial-backports/main arm64 Packages
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/xenial/main/binary-arm64/Packages
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/xenial-updates/main/binary-arm64/Packages
E: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/xenial-backports/main/binary-arm64/Packages
每次更新都很慢，找了好久，才找到相关的答案，答案很简单，就是再source.list 里面每个deb 链接后面增加：[arch=amd64,i386]
比如：把
deb http://archive.ubuntu.com/ubuntu xenial universe
改成
deb [arch=amd64,i386] http://archive.ubuntu.com/ubuntu xenial universe
参考：https://devtalk.nvidia.com/default/topic/1004601/jetson-tx2/after-installing-jetpack3-0-host-computer-is-not-able-to-apt-get-update/
作者：曹博博
链接：https://www.jianshu.com/p/8494060a7f55
来源：简书
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