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Public key for .rpm is not installed

As part of the installation of VRS on Linux compute blades, MetroAE follows best practices and executes a yum update. It also installs mandatory prerequisite packages that VRS software requires. Under certain conditions, we have found that the package updates fail with an error message of the following form:

Public key for python-markdown-2.4.1-2.el7.noarch.rpm is not installed

The fix is to download a new epel package and re-import the GPG keys. For Red Hat family distros (e.g. RHEL or CentOS 7), execute the following commands:

yum install
rpm --import /etc/pki/rpm-gpg/*GPG*

The first command installs the repo, including fresh GPG keys in /etc/pki/rpm-gpg. The second command imports those GPG keys.

Test this by then executing a yum update on your compute blade.