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oracle / centos2ol

Script and documentation to switch CentOS/Rocky Linux to Oracle Linux
https://linux.oracle.com/switch/centos/
Universal Permissive License v1.0
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How remove old rescue kernel #141

Closed cevin closed 2 years ago

cevin commented 2 years ago
image

CentOS Linux (4.x ..)

scoter-oracle commented 2 years ago

If you try to update your system you should also get updated RHCK (Red Hat Compatible Kernel) updated on your Oracle Linux installation. If you want to remove the RHCK you can uninstall the same from your OL installation.

cevin commented 2 years ago

If you try to update your system you should also get updated RHCK (Red Hat Compatible Kernel) updated on your Oracle Linux installation. If you want to remove the RHCK you can uninstall the same from your OL installation.

image

But how do I do it?

In Ubuntu / Debian you just need apt remove linux-headers-$ver, but how do you do it in OL or other derivative distributions?

After I remove kernel-headers and reboot, I still see the CentOS kernel in the boot menu.

cevin commented 2 years ago

Eventually removed the old kernel using grubby

https://docs.oracle.com/en/learn/switch_centos8_linux8/index.html#remove-non-standard-kernels-with-grubby