Updating Kernels on RHEL
Pre-requisites
Subscription should be available on nodes
Kernels to be upgraded should be available. To verify the status of the kernels, use
yum list kernel
The input kernel revision cannot be a RHEL 7.x supported kernel version. e.g. “3.10.0-54.0.1” to “3.10.0-1160”.
Input needs to be passed during execution of the playbook.
Executing the Kernel Upgrade:
Via CLI:
cd omnia/utils
ansible-playbook kernel_upgrade.yml -i inventory -e rhsm_kernel_version=x.xx.x-xxxx
Where the inventory refers to a file listing all manager and compute nodes per the format provided in inventory file.