[Bug 1094014] Re: [Quantal] forbids to loading mormal.mod in UEFI security boot

Colin Watson cjwatson at canonical.com
Wed Jan 2 17:02:28 UTC 2013


You must include all the modules you need in your signed image (i.e. on
the grub-mkimage command line).  GRUB has no provision for verifying
module signatures, so loading modules would amount to reading and
executing unsigned code in the same security context as a signed image,
which is not a sensible thing to do.

You can find the list of modules we include in our pre-signed images in
the grub2 source package, specifically debian/build-efi-images.

** Changed in: grub2 (Ubuntu)
       Status: New => Invalid

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Title:
  [Quantal] forbids to loading mormal.mod in UEFI security boot

Status in “grub2” package in Ubuntu:
  Invalid

Bug description:
  I follow the step in https://wiki.ubuntu.com/UEFI/SecureBoot to do security boot test on my machine.
   
  I have signed grubx64.efi and put it on /boot/efi/efi/ubuntu/grubx64.efi, I also add test-cert.der to KEK and DB.

  Then I enable security boot and boot to shell, Once I run grubx64.efi, the system report following error:
  error: Secure Boot forbids loading module from (hd0,gpt2)/boot/grub/x86_64-efi/normal.mod.

  how can I resolve it ?

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