package: grub2-common severity: grave Version: 2.02~beta2-22+deb8u1 After installing debian 8.5 jessie, I installed Windows. It removed grub from mbr, so booted into rescue mode using the same cd 1 image, but grub-install failed with this error.
grub-install: error /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target --directory. Same error when manually run # chroot /target # grub-install /dev/sda I can see /usr/lib/grub/x86_64-efi/modinfo.sh present instead. When I run grub-install -d /usr/lib/grub/x86_64-efi /dev/sda I get the following error grub-install: error: cannot find EFI directory After mounting efi partition /dev/sda4 under /mnt and passing --efi-directory /mnt The command succeeded and I could boot into debian after going to boot menu and choosing debian.
