$ docker run --rm ppc64le/centos:7 /bin/bash -c "cat /etc/redhat-release && yum makecache && yum-builddep --assumeno bash" CentOS Linux release 7.7.1908 (AltArch) Loaded plugins: fastestmirror, ovl Determining fastest mirrors * base: mirror.vcu.edu * extras: mirror.vcu.edu * updates: ftp.osuosl.org Metadata Cache Created Loaded plugins: fastestmirror, ovl Enabling base-source repository Enabling extras-source repository Enabling updates-source repository Loading mirror speeds from cached hostfile * base: mirror.vcu.edu * extras: mirror.vcu.edu * updates: ftp.osuosl.org http://vault.centos.org/altarch/7/extras/Source/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found Trying other mirror. To address this issue please refer to the below wiki article https://wiki.centos.org/yum-errors If above article doesn't help to resolve this issue please use https://bugs.centos.org/. failure: repodata/repomd.xml from extras-source: [Errno 256] No more mirrors to try. http://vault.centos.org/altarch/7/extras/Source/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found