On Thu, Apr 25, 2019 at 01:55:43PM -0000, Jeremie wrote:
> I have installed fixed kernel but impossible to boot on it. I have > changed grubx64.efi by > http://archive.ubuntu.com/ubuntu/dists/xenial-updates/main/uefi/grub2-amd64/2.02~beta2-36ubuntu3.21/grubx64.efi.signed
> It still blocks with the same error : vmlinuz invalid signature
This error means you have not succeeded in downgrading your grub. It is possible that the file you downloaded has not been installed in the right place.
On Thu, Apr 25, 2019 at 01:55:43PM -0000, Jeremie wrote:
> I have installed fixed kernel but impossible to boot on it. I have archive. ubuntu. com/ubuntu/ dists/xenial- updates/ main/uefi/ grub2-amd64/ 2.02~beta2- 36ubuntu3. 21/grubx64. efi.signed
> changed grubx64.efi by
> http://
> It still blocks with the same error : vmlinuz invalid signature
This error means you have not succeeded in downgrading your grub. It is
possible that the file you downloaded has not been installed in the right
place.