check-boot

#!/bin/bash

# This script is used for checking a bootable usb sticks by starting a qemu virtual machine.
# It can save your time while preparing a stick because you do not need waiting real hardware reboots.

print_usage () {
echo -e "Usage:\n${0##*/} <device> <b|u>
 device - a device which is checked, for example, /dev/sdd. Also it can be image file.
 b - for legacy bios boot check
 u - for uefi boot check"
}

if [[ "$1" == "--help" || $# != 2 ]]; then
    print_usage
    exit
fi

if df --output=source,target | grep "$1" 1>&2; then
    >&2 echo -e "Warning: Probably a partition of $1 in mounted. You should unmount it to prevent corruption of your fs. Booting refused."
    exit 1
fi

if [[ "$2" == "u" ]]; then 
    if [ -f /etc/os-release ]; then . /etc/os-release; fi
    if [[ $ID_LIKE == "ubuntu debian" ]]; then
        BIOS_STR="-bios /usr/share/OVMF/OVMF_CODE.fd";
    else
        BIOS_STR="-bios /usr/share/ovmf/x64/OVMF_CODE.fd"
    fi
fi

if [[ "$1" == *.iso ]]; then
    MEDIA_STR="-cdrom $1"
else
    MEDIA_STR="-drive file=$1,format=raw,index=0,media=disk"
fi

sudo qemu-system-x86_64 $BIOS_STR -m 1G -enable-kvm $MEDIA_STR -display sdl,show-cursor=on