I have kernel configuration file available via /proc:


and I can show the config of the running kernel as:

zcat /proc/config.gz

However, how do I cat the config of a vmlinuz image that is not running? I have vmlinuz image stored on the disk. How do I extract the config?

1 Answer 1


In theory the extract-ikconfig script from the kernel source can extract the embedded configuration from a kernel built with CONFIG_IKCONFIG=y. I don't have access to a kernel built this way so I can't test it.

See also this answer on Stack Overflow for what to do if your kernel was built with CONFIG_IKCONFIG=m.

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