This bug was fixed in the package livecd-rootfs - 2.525.59
--------------- livecd-rootfs (2.525.59) bionic; urgency=medium
* ubuntu-cpc: Install `shim-signed` and `grub-efi-arm64-signed` to enable secureboot on ARM64 images (LP: #1980358)
-- Ivan Kapelyukhin <email address hidden> Thu, 30 Jun 2022 14:10:50 +0200
This bug was fixed in the package livecd-rootfs - 2.525.59
---------------
livecd-rootfs (2.525.59) bionic; urgency=medium
* ubuntu-cpc: Install `shim-signed` and `grub-efi- arm64-signed` to enable
secureboot on ARM64 images (LP: #1980358)
-- Ivan Kapelyukhin <email address hidden> Thu, 30 Jun 2022 14:10:50 +0200