"Invalid signature" issue on dev kernel launch

[Aruna Hewapathirane]

On Tue, Mar 23, 2021 at 5:09 PM Valdis Klētnieks <valdis.kletnieks at vt.edu>
wrote:

> On Tue, 23 Mar 2021 18:36:58 +0200, Gidi Gal said:
>
> > knowledge on this subject), I am now facing "invalid signature" error
> when
> > I reboot with my installed dev kernel.
>
> When/where exactly are you getting that error? There's three major
> places where things can go wrong:
>

I believe just after you select which kernel you wish to boot into. Check
below:
https://www.youtube.com/watch?v=bsCyZlLgrUY


>
> 1) If you're using secure boot, and the grub2 stuff isn't signed by
> a certificate your BIOS/EFI knows about.
>
> 2) If you're using secure boot, and the kernel itself isn't signed by
> a certificate that grub2 knows about.
>
> 3) If your kernel config says modules have to be signed, and a module
> isn't properly signed with a certificate that your kernel knows about.
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