我不明白为什么我不能sudo apt-get upgrade。
我收到此错误：
Get:198 http://security.ubuntu.com/ubuntu focal-security/main amd64 libreoffice-pdfimport all 1:6.4.7-0ubuntu0.20.04.6 [6,344 B]
Ign:185 http://security.ubuntu.com/ubuntu focal-security/main amd64 linux-hwe-5.15-headers-5.15.0-58 all 5.15.0-58.64~20.04.1
Ign:185 http://archive.ubuntu.com/ubuntu focal-security/main amd64 linux-hwe-5.15-headers-5.15.0-58 all 5.15.0-58.64~20.04.1
Err:185 http://archive.ubuntu.com/ubuntu focal-security/main amd64 linux-hwe-5.15-headers-5.15.0-58 all 5.15.0-58.64~20.04.1
Connection failed [IP: 185.125.190.39 80]
Fetched 509 MB in 7min 21s (1,155 kB/s)
W: http://archive.ubuntu.com/ubuntu/pool/main/s/systemd/libudev1_245.4-4ubuntu3.19_amd64.deb: Automatically disabled Acquire::http::Pipeline-Depth due to incorrect response from server/proxy. (man 5 apt.conf)
W: http://security.ubuntu.com/ubuntu/pool/main/p/perl/perl_5.30.0-9ubuntu0.3_amd64.deb: Automatically disabled Acquire::http::Pipeline-Depth due to incorrect response from server/proxy. (man 5 apt.conf)
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/l/linux-hwe-5.15/linux-hwe-5.15-headers-5.15.0-58_5.15.0-58.64~20.04.1_all.deb Connection failed [IP: 185.125.190.39 80]
我找不到任何解决方案。我尝试过两次重新安装 Ubuntu 20.04LTS（它是虚拟机）。我尝试过 apt clean，我更改了 sources.list...
这里是我的 /etc/apt 中的 sources.list：
deb http://archive.ubuntu.com/ubuntu focal main universe multiverse restricted
deb http://security.ubuntu.com/ubuntu/ focal-security main multiverse universe restricted
deb http://archive.ubuntu.com/ubuntu focal-updates main multiverse universe restricted
你有什么想法？
答案1
您的网络连接有问题。
为此，请在另一个窗口中运行此命令：
ping archive.ubuntu.com
使用稳定的互联网连接它就会起作用。