[Bug 1870955] Re: MokManager - Only DER encoded certificate (*.cer/der/crt) is supported

[pete_l]

Yes, I have just crashed into this.
My system is now totally secure. To the point where it is impossible to get past this boot up screen to actually log in. 
I can't do anything. I can't upgrade anything. I can't fix anything. I can't access the boot disk. The box is not bricked.

Great work guys!

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https://bugs.launchpad.net/bugs/1870955

Title:
  MokManager - Only DER encoded certificate (*.cer/der/crt) is supported

Status in shim-signed package in Ubuntu:
  Confirmed

Bug description:
  Installation of VirtualBox requires signing kernel modules.
  During installation a certificate is generated. It should be automatically added during system reboot. However, this is not happening.

  Manual attempt to add a certificate:
  After selecting the generated certificate the following error occurs:
  "Only DER encoded certificate (*.cer/der/crt) is supported".
  I managed to establish that it was MokManager's fault. It does not allow adding ANY certificate.

  Laptop: Acer Aspire 7 A715-74G-78PH
  UEFI:   Vendor: Insyde Corp.
   Version: V1.27
   Release Date: 03/05/2020

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