lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Codename: bionic
我尝试查找错误信息，找出哪些应该删除，哪些不应该删除，但还是没找到。有谁能帮我找出是哪个 ppa 导致了这个问题吗？
> sudo apt update
Hit:1 http://linux.teamviewer.com/deb stable InRelease
Ign:2 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:3 http://archive.canonical.com/ubuntu bionic InRelease
Hit:4 http://security.ubuntu.com/ubuntu bionic-security InRelease
Err:5 http://in.archive.ubuntu.com/ubuntu bionic InRelease
500 Internal Server Error [IP: 103.123.234.254 80]
Hit:6 http://dl.google.com/linux/chrome/deb stable Release
Hit:8 https://download.sublimetext.com apt/stable/ InRelease
Err:10 http://in.archive.ubuntu.com/ubuntu bionic-updates InRelease
500 Internal Server Error [IP: 103.123.234.254 80]
Hit:9 https://packagecloud.io/slacktechnologies/slack/debian jessie InRelease
Hit:11 http://in.archive.ubuntu.com/ubuntu bionic-backports InRelease
Reading package lists... Done
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/bionic/InRelease 500 Internal Server Error [IP: 103.123.234.254 80]
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease 500 Internal Server Error [IP: 103.123.234.254 80]
W: Some index files failed to download. They have been ignored, or old ones used instead.
答案1
更改服务器印度到主要的修复了问题：如何将 Ubuntu Server 中的镜像从区域镜像更改为主镜像？