How to disable "module verification failed: signature and/or required key missing - tainting kernel" message?

Nan Xiao xiaonan830818 at
Mon Nov 2 02:29:30 EST 2015

Hi Anupam & Valdis,

I don't disable CONFIG_MODULE_SIG configuration in kernel. Since from this
post (,
the answer said only disable this option in module's Makefile is enough.

So Is this answer wrong? That is what I am confused.

Best Regards
Nan Xiao

On Mon, Nov 2, 2015 at 3:16 PM,  <Valdis.Kletnieks at> wrote:
> On Mon, 02 Nov 2015 13:57:10 +0800, Nan Xiao said:
>> I add "CONFIG_MODULE_SIG=n" at the beginning of Makefile, and rebuild
>> the module.
>> Could anyone give some clues on this issue? Thanks in advance!
> Did you *also* both rebuild and reboot into the new kernel that has

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