Скачать или смотреть how to fix Errors during downloading metadata for repository appstream centos Linux

how to fix #Errors during downloading metadata for repository #Appstream centos #Linux
Errors during downloading metadata for repository 'appstream':
Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release... [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... [Could not resolve host: mirrorlist.centos.org]

how to fix Errors during downloading metadata for repository appstream centos Linux

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

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