Linux Mint 18.1 升级到18.3 问题总结

apt-get update fail

     如果发现一下问题 "E: Failed to fetch http://xxx/binary-armhf/Packages  404  Not Found"
可能的问题原因为:
参考:https://askubuntu.com/questions/705895/how-to-fix-a-failed-to-fetch-binary-armhf-packages-error-during-apt-get-update

You might install the armhf cross tools which add armhf as foreign architecture (your architecture maybe i386 or amd64). You can launch this command to verify:

dpkg --print-foreign-architectures
If the output includes armhf, you can simply remove it by running the command:

sudo dpkg --remove-architecture armhf
Finally, launch your sudo apt-get update again.