Monday, February 23, 2009

Extract Config from zImage

It was hard for me to find this simple thing in internet, so I gonna make life for someone a little bit easier.

If you want to extract config file from existing linux image, zImage or bzImage, do the following:
  • Download archive file with linux sources.
  • Unpack linux kernel sources
  • Go into root directory of the kernel sources
  • Run chmod 755 ./scripts/extract-ikconfig
  • Run ./scripts/extract-ikconfig /tmp/zImage > /tmp/config
Where /tmp/zImage is a file you want to extract a config from. And /tmp/config it is a filename for the extracted config.


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