[Bug 1879948] [NEW] shim-signed installation focal fossa

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I have just upgraded from Ubuntu 18.04.4 LTS (Bionic Beaver) to Ubuntu
20.04 LTS Focal Fossa.

There is the official graphical way to upgrade. I have used that.
https://ubuntu.com/tutorials/tutorial-upgrading-ubuntu-desktop#1-before-you-start

At the end I had two packages that didn't install - the shim-signed was one of them.
The package number is 1.40.3+15+1533136590.3beb971-0ubuntu1.

I have an AMD64 processor - namely AMD Quad-Core A4-6210.

Error message:
Setting up grub-efi-amd64-signed (1.142+2.04-1ubuntu26) ...
dpkg: error processing package grub-efi-amd64-signed (--configure):
 installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 10
dpkg: dependency problems prevent configuration of shim-signed:
 shim-signed depends on grub-efi-amd64-signed | grub-efi-arm64-signed; however:
  Package grub-efi-amd64-signed is not configured yet.
  Package grub-efi-arm64-signed is not installed.

...

E: Sub-process /usr/bin/dpkg returned an error code (1)

** Affects: shim-signed (Ubuntu)
     Importance: Undecided
         Status: New

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shim-signed installation focal fossa
https://bugs.launchpad.net/bugs/1879948
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