yum error – Public key for *.rpm is not installed

the dirty way aroung this is doing:

$ yum install {package-name} --nogpgcheck

But best practice is:

first cd to:

$ cd /etc/pki/rpm-gpg

Then do a wget command, here’s an example:

$ wget -O http://yum.theforeman.org/releases/1.8/RPM-GPG-KEY-foreman

then import it into rpm db like this:

$ rpm --import RPM-GPG-KEY-foreman

You can list all the imported keys like this:

$ rpm -qa gpg*

then to check it have worked, you can do:

$ rpm -qi gpg-pubkey-225c9b71-54fda121
 Name : gpg-pubkey Relocations: (not relocatable)
 Version : 225c9b71 Vendor: (none)
 Release : 54fda121 Build Date: Wed 28 Oct 2015 11:41:38 AM GMT
 Install Date: Wed 28 Oct 2015 11:41:38 AM GMT Build Host: localhost
 Group : Public Keys Source RPM: (none)
 Size : 0 License: pubkey
 Signature : (none)
 Summary : gpg(Foreman Release Signing Key (1.8) <packages@theforeman.org>)
 Description :
 -----BEGIN PGP PUBLIC KEY BLOCK-----