Compiling a kernel

Question

I had to compile my kernel because I added a new system call to the kernel. i follwed the exact steps mentioned on this website https://tssurya.wordpress.com/2014/08/19/adding-a-hello-world-system-call-to-linux-kernel-3-16-0/

My kernel finished compiling but does not show version as linux-3.16 but shows linux-3.16.0-30-generic instead. am i not booting into my rebuilt kernel? or if not what is the error?

You could get the time stamp of the kernel build by the command uname -a — Prajosh Premdas, Mar 10 '15 at 11:04
You cant boot into your new kernel? The reason probably is, you did not use correct configuration of your hardware. Just copy `/boot/config-` to `.config` in your kernel sources and restart from `make menuconfig` — Milind Dumbare, Mar 10 '15 at 14:02

score 0 · Answer 1 · edited May 23 '17 at 12:16

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The kernel version is build from some more parameters. Have you checked your settings for EXTRAVERSION?

How can the Linux kernel version extra details be customized or removed

edited May 23 '17 at 12:16

Community

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answered Mar 10 '15 at 10:58

Klaus

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score 0 · Accepted Answer · answered Mar 11 '15 at 13:55

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Just open Makefile in the linux kernel_src/Makefile and check the "EXTRAVERSION" information. It may be the "EXTRAVERSION" is added.

answered Mar 11 '15 at 13:55

Amit Agarwal

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Compiling a kernel

2 Answers2