Update kernel Linux without reboot?!

Linux and Unix-Like Red Hat
1

Hi
Is it a way ? When Linux kernel updated that don't want reboot it means without reboot the new kernel performances

Thanks

2

No. The kernel is loaded first thing during boot and is the core of the entire system, as discussed in e.g. this thread. How could you imagine it being replaced with the system running?

1 Like
3

There are actually several technical solutions allowing to hot patch a Linux kernel. The most advanced is ksplice which is a feature of Oracle Linux. Alternatives are kGraft (Suse) and kpatch (Red Hat)

5 Likes
4

Thanks
Is there a way in centos?

5

AFAIK, even while part or all of the underlying various implementations are open source, kernel hot patching is always a paid service.

6

Thanks
It is possible to introduce in the field of educational resources

7

Your last post looks incomplete.

8

Excuse me , could you introduce to me an educational article for this topic ?