error: failed retrieving file 'community.db' from mirrors.xxx : The requested URL returned error: 404

1. 问题描述

近日，在Manjaro上尝试更新：

$ sudo pacman -Syu
output:
:: Synchronizing package databases...
 core is up to date
 extra is up to date
 community.db failed to download
 multilib is up to date
 archlinuxcn is up to date
error: failed retrieving file 'community.db' from mirrors.tuna.tsinghua.edu.cn : The requested URL returned error: 404
error: failed to synchronize all databases (unexpected error)

可以看到，没办法从清华源拉取 community.db

我以为是源的问题，发现换源之后还是没法拉取，遂翻看论坛寻找解决方法

2. 解决方法

参考Archlinux.org

可以发现其实两年前，[community]仓库已经被合并到[extra]了

为了保持更新不出错，[community]会维持空仓库的状态直到 2025-03-01

所以最近更新的时候会报这个错

解决办法就是在 /etc/pacman.conf 中将 [community] 部分注释掉

sudo vim /etc/pacman.conf

# in /etc/pacman.conf,comment out following lines:

# [community]
# SigLevel = PackageRequired
# Include = /etc/pacman.d/mirrolist

3. Reference

Archlinux.topic
Archlinux.org