After performing direct upgrade from Ubuntu 18.04 to 20.04, everytime I install an application following errors are generated in the console:
Do you want to continue? [Y/n] 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 No apport report written because the error message indicates its a followup error from a previous failure. 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. dpkg: error processing package shim-signed (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: grub-efi-amd64-signed shim-signed E: Sub-process /usr/bin/dpkg returned an error code (1)
However, the application is installed despite the error.