Your bug report shows:
EFIBootMgr: Error: command ['efibootmgr', '-v'] failed with exit code 2: efibootmgr: EFI variables are not supported on this system.
And also:
Installing for x86_64-efi platform. grub-install: error: cannot find EFI directory. dpkg: error processing package shim-signed (--configure): subprocess installed post-installation script returned error exit status 1 Setting up grub-efi-amd64-signed (1.74+2.02~beta2-36ubuntu11) ... grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory. dpkg: error processing package grub-efi-amd64-signed (--configure): subprocess installed post-installation script returned error exit status 1
It appears to be an error that something is trying to install shim-signed on your system.
Mathieu, is there anything in the ubiquity code that would be /requesting/ installation of shim-signed?
Your bug report shows:
EFIBootMgr: Error: command ['efibootmgr', '-v'] failed with exit code 2: efibootmgr: EFI variables are not supported on this system.
And also:
Installing for x86_64-efi platform. amd64-signed (1.74+2. 02~beta2- 36ubuntu11) ... grub/i386- pc/modinfo. sh doesn't exist. Please specify --target or --directory. amd64-signed (--configure):
grub-install: error: cannot find EFI directory.
dpkg: error processing package shim-signed (--configure):
subprocess installed post-installation script returned error exit status 1
Setting up grub-efi-
grub-install: error: /usr/lib/
dpkg: error processing package grub-efi-
subprocess installed post-installation script returned error exit status 1
It appears to be an error that something is trying to install shim-signed on your system.
Mathieu, is there anything in the ubiquity code that would be /requesting/ installation of shim-signed?