[CentOS8] Errors during downloading metadata for repository 'appstream'

어느날 CentOS8 업데이트를 하는데 아래와 같은 오류가 난다.

미러 주소가 vault.centos.org로 바뀌어서 생겼다고 하여 해결 방법은 아래와 같다.

 

# dnf update

 

CentOS Stream 8 - AppStream

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]
Error: 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]

 

해결방법

# sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
# sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

 

# dnf update