Script to manage (particularly old) Minix 3 VMs using VirtualBox

minix-vm.sh

#!/usr/bin/env bash

set -e

FILE="$(readlink -f "$0")"
VM_NAME=${2:-minix-312}
MOUNTPOINT=${3:-$HOME/minix}

while [[ $# -gt 0 ]]; do
    case "$1" in
        run)
            # qemu-system-x86_64\
            #     -rtc base=utc\
            #     -nic user,model=virtio,hostfwd=tcp::2222-:22\
            #     -cpu host -m 1G -enable-kvm\
            #     -drive file=$VM_PATH/minix/minix.img,format=raw,if=virtio\
            #     -nographic
            vboxmanage startvm "$VM_NAME" --type=headless
            exit 0
            ;;
        xrun)
            vboxmanage startvm "$VM_NAME"
            exit 0
            ;;
        manage)
            sudo modprobe -v nbd
            sudo qemu-nbd -c /dev/nbd0 "$HOME/VirtualBox VMs/$VM_NAME/$VM_NAME.vdi"
            sleep 1
            sudo mount -o loop -t minix /dev/nbd0p7 "$MOUNTPOINT"
            exit 0
            ;;
        unmanage)
            sudo umount "$MOUNTPOINT"
            sudo qemu-nbd -d /dev/nbd0
            sudo modprobe -rv nbd
            exit 0
            ;;
        update)
            $FILE stop "$VM_NAME" || echo 'machine not running'
            $FILE manage "$VM_NAME" "$MOUNTPOINT"
            rsync -avzh --progress "$HOME/repos/contrib/minix/" "$MOUNTPOINT/gitsrc"
            sleep 1
            $FILE unmanage "$VM_NAME" "$MOUNTPOINT"
            exit 0
            ;;
        stop)
            vboxmanage controlvm "$VM_NAME" poweroff
            exit 0
            ;;
        restart)
            vboxmanage controlvm "$VM_NAME" reset
            exit 0
            ;;
        # mkova)
        #     (
        #         set -x
        #         cd $VM_PATH/minix
        #         rm -f minix.vmdk
        #         qemu-img convert -f raw -O vmdk minix-nonet.img minix-disk001.vmdk
        #         tar cf minix.ova minix{-disk001.vmdk,.ovf}
        #     )
        #     shift
        #     ;;
        *)
            echo "Usage: $0 {run|xrun|manage|unmanage|stop|restart}"
            exit 1
            ;;
    esac
done