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How to remove older kernels from the system

## List the kernel versions installedrpm -q kernel ## Ensure you have yum-utils package installed yum install -y yum-utils

## Clean up ## For RHEL 7## count is the number of kernel versions to leave behind. In the following example we keep 2 versions
package-cleanup --oldkernels --count=2 ## For RHEL 8 dnf remove --oldinstallonly --setopt installonly_limit=2 kernel