[Oisf-users] RHEL Kernel 3.1 to 4.x

[Cloherty, Sean E]

On more than one test host I performed the upgrade using yum and elrepo and GRUB was still pointing to the older kernel by default.



-----Original Message-----
From: Oisf-users [mailto:oisf-users-bounces at lists.openinfosecfoundation.org] On Behalf Of Andreas Herz
Sent: Monday, January 23, 2017 15:08 PM
To: oisf-users at lists.openinfosecfoundation.org
Subject: Re: [Oisf-users] RHEL Kernel 3.1 to 4.x

On 23/01/17 at 16:01, Cloherty, Sean E wrote:
> Fresh from Suricata training in Sunnyvale CA (Thanks Peter and Eric!) and looking to upgrade the kernel on my CentOS hosts.
> 
> Assuming I follow the procedure of adding the elrepo repo and running 
> the kernel upgrade -
> 
> 1. What are the possible risks - what could break?

That depends on what you're running on the machine, but most of the time there should be no breaks if you use the proper repo.

> 2. Following upgrade to the kernel - are there any other requirements other than changing the default kernel to boot in GRUB?

This should be done by the package itself

> 3. Which version is recommended?  4.7, 4.9 ?

4.9 might be good choice since it's going to be a LTS kernel

> Thanks.
> 
> Sean Cloherty
> InfoSec Engineer/Scientist, Lead
> MITRE Corporation
> office (781) 271-3707
> cell      (781) 697-8043
> 

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--
Andreas Herz
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