The public key for jenkins-2.249.1-1.1.noarch.rpm is not installed
yum update
I was able to update jenkins.
Error statement
$ sudo yum update
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Omission
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Transaction summary
========================================================================================================================
Update 14 package
Total capacity: 115 M
Is this ok [y/d/N]: y
Downloading packages:
warning: /var/cache/yum/x86_64/7/jenkins/packages/jenkins-2.249.1-1.1.noarch.rpm: Header V4 RSA/SHA512 Signature, key ID 45f2c3d5: NOKEY
jenkins-2.249.1-1.1.noarch.rpm public key is not installed
Solution
Do the following
$ sudo rpm --import https://pkg.jenkins.io/redhat/jenkins.io.key
$ sudo yum update
Settled
reference
If it helps someone