Bug#935045: cdrom: "grub-install dummy" failed in debian-install.

[Gustavo Romero Vazquez <gustavorv86@gmail.com>]

Package: cdrom
Severity: important
Tags: patch

During installation, "grub-install dummy" is failed. I have fixed the problem
booting the CD installation in rescue mode, make a chroot into my root device
(/dev/sdaX) and typing the next commands:

mount -t efivarfs efivarfs /sys/firmware/efi/efivars
grub-install
update-grub

I think efivars is not mounted before the debian-install executed the grub-
install.

Good luck!



-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-5-amd64 (SMP w/8 CPU cores)
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8), LANGUAGE=es_ES.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled