How do I build a Linux kernel so it has the .config available?
Sep 17, 2020
asked by anonymous
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Question / Issue:
I see that some kernel builds have a config file under /proc. How is this done?
Responses:
Date: Sept. 17, 2020
Author: Mind Chasers
Comment:
Take a look at the help in init/Kconfig under IKCONFIG_PROC:
config IKCONFIG_PROC
bool "Enable access to .config through /proc/config.gz"
depends on IKCONFIG && PROC_FS
help
This option enables access to the kernel configuration file
through /proc/config.gz.
Therefore, make sure CONFIG_IKCONFIG_PROC is set to true:
$ more .config
...
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
...
