CODEWITHSUNDEEP
linuxlinux-kerneldebian
fred basset
fred basset

Reputation: 10082

Where is kernel configuration stored on Linux target?

I'm working on an embedded ARM Debian Linux system. The system ships with a default image on the SD card. What I'd like to do is try and determine which kernel settings where used in building the kernel that's running on that card.

Is there any way to do that?

Upvotes: 1

Views: 1444

Answers (1)

JOgden
JOgden

Reputation: 326

Assuming no copy can be found under /boot then:

If CONFIG_IKCONFIG_PROC is set then a compressed copy of the configuration will be found at /proc/config.gz

If CONFIG_IKCONFIG is set but not CONFIG_IKCONFIG_PROC the extract-ikconfig script can be used to extract the .config file from a kernel image file (http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/scripts/extract-ikconfig?id=HEAD)

Upvotes: 3

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