Symptoms:
You might receive an email with the following content:
"The `free` type patch is not found for your kernel. Please select existing patch type"
Alternatively, when running a manual update the same error message might appear:
kcarectl --update --test
Downloading updates
The `free` type patch is not found for your kernel. Please select existing patch type
Explanation:
CloudLinux includes symlink protection so the free patch set is neither supported nor necessary on CloudLinux. You can refer to this link for more information:
https://docs.cpanel.net/ea4/apache/symlink-race-condition-protection/#cloudlinux-securelinks
Workaround:
To disable the free patch set and return to the default configuration you can run the following command:
kcarectl --set-patch-type default
'default' patch type selected
And finally, run a test update to ensure that the error has indeed disappeared:
kcarectl --update --test --kpatch-debug
Downloading updates
Patch level 3 applied. Effective kernel version 3.10.0-962.3.2.lve1.5.39.el7
Kernel is safe