[CentOS] Failed to download metadata for repo 'appstream'

에러

[root@main ~]# yum -y install gnome-tweaks
CentOS Stream 8 - AppStream                                                                                                                           0.0  B/s |   0  B     00:00    
Errors during downloading metadata for repository 'appstream':
  - Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release=8-stream&arch=x86_64&repo=AppStream&infra=stock [Could not resolve host: mirrorlist.centos.org]
오류: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release=8-stream&arch=x86_64&repo=AppStream&infra=stock [Could not resolve host: mirrorlist.centos.org]

 

 

[원인] - Mirror site가 Vault로 변경되어  문제가 발생

 

 

해결방법

[root@main ~]# sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-Stream-*
[root@main ~]# sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-Stream-*

[root@main ~]# dnf repolist
레포지터리 ID                                                                 레포지터리 이름
appstream                                                                     CentOS Stream 8 - AppStream
baseos                                                                        CentOS Stream 8 - BaseOS
extras                                                                        CentOS Stream 8 - Extras
extras-common                                                                 CentOS Stream 8 - Extras common packages