[SOLVED] Linux kernel build for CentOS

Issue

I'm trying to build kernel on a system with CentOS (7.3.1611) installed. I downloaded the latest stable kernel (4.10.11) tar.xz file from here: https://www.kernel.org/

Then I ran the below commands:

tar xvf linux-4.10.11.tar.xz
cd linux-4.10.11
make nconfig

The problem is that when config file is opened, I don't find certain configurations. Also, I see (NEW) being appended to a lot of configuration names e.g.

[*] 64-bit kernel (NEW)

Interestingly, I repeat same steps on another system with Ubuntu 16.04 LTS and I can see all the required configuration. Also, I don't see this (NEW) string being appended to any of the configuration names. It may not be related to the problem I'm facing but it is just an observation.

Any idea why the same kernel source configuration is behaving differently on different machines?

Solution

Refer to the comments above. "CentOS originally had 3.10.x version and since the corresponding config was being used (/boot/config-3.10.x) when running "make nconfig", I was not seeing some configurations which are probably the part of newer version of kernel. I used config-4.10.1 from my Ubuntu system and copied to CentOS as .config, and it resolved the issue."

Answered By - pree

Answer Checked By - Candace Johnson (WPSolving Volunteer)