do not build (or sign) grubnetx64-installer.efi in Ubuntu

[Steve Langasek]

I just noticed that http://archive.ubuntu.com/ubuntu/dists/focal/main/uefi/grub2-amd64/current/ includes a signed artifact I wasn't familiar with, grubnetx64-installer.efi.signed. This came in from Debian via commit e8bc4a231a2e16c25e86b7288f6de0b5a0c9bb2f:

    Add an extra di-specific version of the UEFI netboot image

    Identical to the normal netboot image, but With a different baked-in
    prefix value ("$vendor-installer/$ARCH/grub" instead of "/grub").

    Helps to fix #928750, making d-i consistent in terms of PXE setup.

We do not need two netboot images for grub, and should definitely not be signing two of them.

Please drop this artifact from the next grub2 upload.

[Launchpad Janitor (janitor)]

This bug was fixed in the package grub2 - 2.04-1ubuntu20

---------------
grub2 (2.04-1ubuntu20) focal; urgency=medium

  * build-efi-images: do not produce -installer.efi.signed. LP: #1863994

grub2 (2.04-1ubuntu19) focal; urgency=medium

  * uefi-firmware: rename fwsetup menuentry to UEFI Firmware Settings
    (LP: #1864547)
  * build-efi-images: add smbios module to the prebuilt signed EFI images
    (LP: #1856424)

 -- Dimitri John Ledkov <email address hidden> Tue, 25 Feb 2020 01:11:31 +0000