我无法更新 ubuntu 20.04 并出现以下错误
Hit:1 http://in.archive.ubuntu.com/ubuntu focal InRelease
Hit:2 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:3 http://packages.microsoft.com/repos/code stable InRelease
Hit:4 http://in.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:5 https://linux.teamviewer.com/deb stable InRelease
Hit:6 http://ppa.launchpad.net/openjdk-r/ppa/ubuntu cosmic InRelease
Ign:7 http://archive.ubuntu.com/ubuntu cosmic InRelease
Hit:8 http://in.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:9 http://security.ubuntu.com/ubuntu focal-security InRelease
Err:10 http://archive.ubuntu.com/ubuntu cosmic Release
404 Not Found [IP: 2001:67c:1360:8001::24 80]
Reading package lists... Done
E: The repository 'http://archive.ubuntu.com/ubuntu cosmic Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
/etc/apt/sources.list 的输出：-
答案1
您必须/etc/apt/sources.list使用注释掉有问题的行宇宙的释放然后重试
sudo apt-get update