#!/bin/sh
# Runs qemu, booting from hd-media image.
#
# This is tricky, since qemu can only boot from the first disk, and we want
# to have two disks, the first being used to install to, and the second
# used for the hd-media. (Installing the the second disk probably wouldn't
# result in a bootable system). So, boot qemu using the hd-media kernel and 
# initrd and let it find the hd-media on the second disk.
set -e

if [ -z "$QEMU_COMMAND" ]; then
	QEMU_COMMAND=qemu
fi

if [ -z "$QEMU_DISK" ]; then
	QEMU_DISK=$STATE_DIR/qemu-$MACHINE-$SCHEME.img
fi

if [ ! -e "$QEMU_KERNEL" ]; then
	echo "QEMU_KERNEL $QEMU_KERNEL does not exist" >&2
	exit 1
fi
if [ ! -e "$QEMU_INITRD" ]; then
	echo "QEMU_INITRD $QEMU_INITRD does not exist" >&2
	exit 1
fi

QEMU_DISK2=$STATE_DIR/qemu-$MACHINE-$SCHEME.hd-media.img
piggyback_hd-media "$QEMU_DISK2"

# Store the pid so stopqemu can stop it later.
echo "$$" > $STATE_DIR/qemu-$MACHINE-$SCHEME.pid
exec $QEMU_COMMAND -cdrom "$ISO" \
	-hda $QEMU_DISK \
	-hdb $QEMU_DISK2 \
	-kernel $QEMU_KERNEL \
	-initrd $QEMU_INITRD \
	-nographic \
	-net nic -net user,hostname=$MACHINE \
	-no-reboot \
	$QEMU_EXTRA_PARAMS \
	-append "root=/dev/ram $CONSOLEPARAMS $BOOTPARAMS" \
	-serial tcp:localhost:$QEMU_SERIAL_PORT,server