Hi, I've installed centos 7 and updated the packages and trying to install the epel-release package and hit with following error: [root at localhost ~]# yum info epel-release Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Available Packages Name : epel-release Arch : noarch Version : 7 Release : 5 Size : 14 k Repo : extras/7/ppc64le Summary : Extra Packages for Enterprise Linux repository configuration URL : http://download.fedoraproject.org/pub/epel License : GPLv2 Description : This package contains the Extra Packages for Enterprise Linux : (EPEL) repository GPG key as well as configuration for yum. [root at localhost ~]# yum install epel-release Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Resolving Dependencies --> Running transaction check ---> Package epel-release.noarch 0:7-5 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: epel-release noarch 7-5 extras 14 k Transaction Summary ================================================================================ Install 1 Package Total download size: 14 k Installed size: 24 k Is this ok [y/d/N]: y Downloading packages: warning: /var/cache/yum/ppc64le/7/extras/packages/epel-release-7-5.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY Public key for epel-release-7-5.noarch.rpm is not installed epel-release-7-5.noarch.rpm | 14 kB 00:00 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-AltArch-7-ppc64le The GPG keys listed for the "CentOS-7 - Extras" repository are already installed but they are not correct for this package. Check that the correct key URLs are configured for this repository. Failing package is: epel-release-7-5.noarch GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7, file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-AltArch-7-ppc64le [root at localhost ~]# Thanks, Manjunath.