Re: x86/microcode update on systems without INITRD

Måns Rullgård
2016-01-11T20:29:37Z

Borislav Petkov <bp@suse.de> writes:

> On Fri, Jan 08, 2016 at 03:48:37PM +0100, Michal Marek wrote:
>> The comments are printed during make oldconfig if a symbol in the
>> current menu needs updating. Which is probably not the case here, both
>> MICROCODE and BLK_DEV_INITRD are existing symbols.
>
> Right, and the problem is that "make oldconfig" sees that BLK_DEV_INITRD
> is not enabled in that case and disables CONFIG_MICROCODE too. So by the time
> the comment gets evaluated, CONFIG_MICROCODE is off so no workie.
>
> I tried a different thing, see below. It is a bit lengthly but it does
> what it should and we can always extend it for other stuff later as it
> might turn useful, according to my suspicion :-)
>
> With Thomas' config it says:
>
> $ make oldconfig
> You have CONFIG_MICROCODE enabled without BLK_DEV_INITRD. Enable
> it and make sure microcode is added to your initrd as explained in
> Documentation/x86/early-microcode.txt
>
> scripts/kconfig/Makefile:85: recipe for target 'oldconfig' failed
> make[1]: *** [oldconfig] Error 1
> Makefile:531: recipe for target 'oldconfig' failed
> make: *** [oldconfig] Error 2

But this is wrong. Microcode update doesn't need initrd.

--
Måns Rullgård