#!/bin/bash -eu

DEVICES=( \
"/dev/disk/by-id/nvme-Samsung_SSD_970_EVO_Plus_500GB_Sxxxxxxxxxxxxxx,efi1" \
"/dev/disk/by-id/nvme-Samsung_SSD_970_EVO_Plus_500GB_Sxxxxxxxxxxxxxx,efi0" \
"/dev/disk/by-id/nvme-ADATA_LEGEND_710_xxxxxxxxxxxx,efi" \
)

for DEVLINE in "${DEVICES[@]}"; do

read -r DEV BOOTDIR <<< "$(echo "${DEVLINE}" | tr ',' ' ')"
grub-install --target=x86_64-efi --efi-directory=/boot/"${BOOTDIR}" "${DEV}"

done