#!/bin/bash

# This script creates a root filesystem on an encrypted LVM PV

dd if=/dev/zero of=test/root.ext2 bs=1M count=20

initdir=test/mnt
kernel=$(uname -r)
(
    . ./dracut-functions
    dracut_install sh df free ls shutdown poweroff stty cat ps ln ip route \
	/lib/terminfo/l/linux mount dmesg ifconfig dhclient mkdir cp ping dhclient 
    inst "modules.d/40network/dhclient-script" "/sbin/dhclient-script"
    inst "modules.d/40network/ifup" "/sbin/ifup"
    dracut_install grep
    inst test/test-init /sbin/init
    find_binary plymouth >/dev/null && dracut_install plymouth
    (cd "$initdir"; mkdir -p dev sys proc etc var/run tmp )
)
targetfs="$initdir"
unset initdir

# create an initramfs that will create the target root filesystem.
# We do it this way because creating it directly in the host OS
# results in cryptsetup not being able to unlock the LVM PV.
# Probably a bug in cryptsetup, but...
./dracut -l -i "$targetfs" /source \
    -m "dash kernel-modules test crypt lvm mdraid udev-rules base rootfs-block" \
    -d "ata_piix ext2 sd_mod" \
    -f test/initramfs.makeroot

# Invoke KVM and/or QEMU to actually create the target filesystem.
test/run-qemu -hda test/root.ext2 -m 512M -nographic -net none \
    -kernel "/boot/vmlinuz-$kernel" \
    -append "root=/dev/dracut/root rw rootfstype=ext2 quiet console=ttyS0,115200n81" \
    -initrd test/initramfs.makeroot