How to get config from a EFISTUB kernel?

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I am working on getting normal Linux onto a x86 Android tablet. Only kernel I can find is efilinux.efi located inside the system’s ESP (\EFI\Intel\efilinux.efi). But I can’t get config through these three ways:

  • /proc/config.gz
  • /boot/config-[whatever]
  • even not using scripts/extract-ikconfig from kernel tree gives me extract-ikconfig: Cannot find kernel config.

So are there other ways to get the config out? Or just no way to do that?

Johnson Steward

Posted 2015-11-07T14:52:09.033

Reputation: 151

As far as I know, there is no way to get the full config out of an EFISTUB kernel. However, some config can be retrieved from /sys/firware/efi – fpmurphy – 2015-11-09T12:35:49.173

@fpmurphy1 inside /sys/firmware/efi i only get efivars, seems like pretty unrelated to the kernel itself. – Johnson Steward – 2015-11-09T12:53:43.607

There is absolutely no way of getting the config out of the kernel unless built with IKCONFIG – fpmurphy – 2015-11-09T23:16:10.817

No answers

Asked: 2015-11-07T14:52:09.033

Viewed: 178 times

Active: 2015-11-07T14:52:09.033