🐧 Исправляем ошибку Failed to Download Metadata for Repo

# dnf repolist
Oracle Linux 8 BaseOS Latest (x86_64) 0.0 B/s | 0 B 00:00
Failed to download metadata for repo 'ol8_baseos_latest'
Error: Failed to download metadata for repo 'ol8_baseos_latest
dnf was not able to refresh the cache as it could not reach the yum server itself, Hence pointing to cache being expired.

# yum clean metadata
Cache was expired <<<<<<<<<<<<<<
0 files remove

Решение

Эта проблема вызвана проблемой сети или неправильными настройками прокси.

1. Добавьте прокси в файл /etc/dnf/dnf.conf.

http://[proxy-host].[domain].com:[port]

# vi /etc/dnf/dnf.conf

[main]
gpgcheck=1
installonly_limit=3
clean_requirements_on_remove=True
best=True

http://[proxy-host].[domain].com:[port]