Comment 2 for bug 1991633

Oct 4 07:30:40 ubuntu plugininstall.py: log-output -t ubiquity mount --bind /sys/firmware/efi/efivars /target/sys/firmware/efi/efivars
Oct 4 07:30:40 ubuntu grub-installer: info: architecture: amd64/efi
Oct 4 07:30:40 ubuntu ubiquity: File descriptor 3 (pipe:[63355]) leaked on lvdisplay invocation. Parent PID 29905: /bin/sh
Oct 4 07:30:40 ubuntu ubiquity: Volume group "sda" not found
Oct 4 07:30:40 ubuntu ubiquity: Cannot process volume group sda
Oct 4 07:30:40 ubuntu grub-installer: info: Identified partition label for /dev/sda1: gpt
Oct 4 07:30:41 ubuntu grub-installer: info: Installing grub on '/dev/sda'
Oct 4 07:30:41 ubuntu grub-installer: info: grub-install does not support --no-floppy
Oct 4 07:30:41 ubuntu grub-installer: info: Running chroot /target grub-install --force --target x86_64-efi "/dev/sda"
Oct 4 07:30:41 ubuntu grub-installer: Installing for x86_64-efi platform.
Oct 4 07:30:57 ubuntu grub-installer: grub-install: warning: Cannot set EFI variable Boot0005.
Oct 4 07:30:57 ubuntu grub-installer: grub-install: warning: efivarfs_set_variable: writing to fd 8 failed: Invalid argument.
Oct 4 07:30:57 ubuntu grub-installer: grub-install: warning: _efi_set_variable_mode: ops->set_variable() failed: Invalid argument.
Oct 4 07:30:57 ubuntu grub-installer: grub-install: error: failed to register the EFI boot entry: Invalid argument.
Oct 4 07:30:57 ubuntu grub-installer: error: Running 'grub-install --force --target x86_64-efi "/dev/sda"' failed.