Having the following error trying to install a unsigned package from Yum repository on CentOS/RHEL?
Unless you get an officially signed package(s), you will need to override/accept the installation of unsigned package (if you trust the source/issuer, of course).
If installing a locally located rpm file(s), you may use the command “rpm -ivh package-name.rpm“.
If installing from a repository, you will need to edit /etc/yum.conf and locate the following parameter :
gpgcheck=1
And change it for :
gpgcheck=0
Then run Yum again to install the desired package. I suggest then to change it back to “gpgcheck=1” once you are done.