WSL2下的Ubuntu 24.0突然apt update报错 Could not wait for server fd 的解决方案

我在WSL下面安装了Ubuntu 24.04.1 LTS (GNU/Linux 6.6.87.2-microsoft-standard-WSL2 x86_64)。只要一执行apt update命令，它就给我报错：

bash 复制代码

Err:2 https://mirrors.tuna.tsinghua.edu.cn/ubuntu noble InRelease
  Could not wait for server fd - select (11: Resource temporarily unavailable) [IP: 101.6.15.130 443]
Err:3 https://mirrors.tuna.tsinghua.edu.cn/ubuntu noble-updates InRelease
  Could not wait for server fd - select (11: Resource temporarily unavailable) [IP: 101.6.15.130 443]
Err:4 https://mirrors.tuna.tsinghua.edu.cn/ubuntu noble-backports InRelease
  Could not wait for server fd - select (11: Resource temporarily unavailable) [IP: 101.6.15.130 443]

搞了好久一直不知道怎么回事，也怎么也解决不了。一开始，因为wsl老是重置我的/etc/resolv.conf，然后我ping外网也ping不通，那好，我就手动修改了，现在就可以ping得通了。可是，老是出现上面的问题，而且，我感觉它的反应是很慢的，这种感觉就是网络不通的症状。可是......我能够ping得通，也是用的国内源哇？

后来，我找到了这篇文章：APT: Could not wait for server fd - select (11: Resource temporarily unavailable) $IP: 10.158.100.1 8080$

然后，按照它里面所写的，我在/etc/apt/apt.conf.d/下面新增了一个90curtin-aptproxy配置文件：

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Acquire::http::Proxy "http://127.0.0.1:7890";
Acquire::https::Proxy "http://127.0.0.1:7890";

你猜怎么着？畅通了。着实是诡异的问题。

另，从这个版本开始，apt的配置做了很大的改变，开始使用DEB822 格式来配置软件源：

ini 复制代码

Types: deb
URIs: https://mirrors.tuna.tsinghua.edu.cn/ubuntu
Suites: noble noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
# Types: deb-src
# URIs: https://mirrors.tuna.tsinghua.edu.cn/ubuntu
# Suites: noble noble-updates noble-backports
# Components: main restricted universe multiverse
# Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

# 以下安全更新软件源包含了官方源与镜像站配置，如有需要可自行修改注释切换
Types: deb
URIs: http://security.ubuntu.com/ubuntu/
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

# Types: deb-src
# URIs: http://security.ubuntu.com/ubuntu/
# Suites: noble-security
# Components: main restricted universe multiverse
# Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

# 预发布软件源，不建议启用

# Types: deb
# URIs: https://mirrors.tuna.tsinghua.edu.cn/ubuntu
# Suites: noble-proposed
# Components: main restricted universe multiverse
# Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

# # Types: deb-src
# # URIs: https://mirrors.tuna.tsinghua.edu.cn/ubuntu
# # Suites: noble-proposed
# # Components: main restricted universe multiverse
# # Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg