#!/bin/sh
#
# This is one of those types of files that you shouldn't edit unless you really
# know what you are doing and even then you should make a backup.
#
# Edit at your own risk! DANGER DANGER.

echo -n "Mounting kernel file systems:"
mkdir /proc /dev /sys /run 2>/dev/null
mount -t proc proc /proc && echo -n " /proc"
mount -t devtmpfs devtmpfs /dev && echo -n " /dev"
mount -t sysfs sysfs /sys && echo -n " /sys"
mount -t tmpfs tmpfs /run && echo -n " /run"
echo

if [ -f "/warewulf/config" ]; then
    . /warewulf/config
else
    echo "ERROR: Warewulf configuration file not found."
    echo "Rebooting in 1 minute..."
    sleep 60
    echo b > /proc/sysrq-trigger || /sbin/reboot -f
fi

echo
echo "Warewulf v4 is now booting: ${WWHOSTNAME}"
echo

chmod 755 /warewulf/wwinit

if [ -z "${WWROOT}" -o "${WWROOT}" = "initramfs" ]; then
    echo "Retaining initramfs and invoking /warewulf/wwinit..."
    exec /warewulf/wwinit
elif [ "${WWROOT}" = "ramfs" -o "${WWROOT}" = "tmpfs" ]; then
    echo "Setting up new ${WWROOT} rootfs..."
    mkdir /newroot
    mount wwroot /newroot -t ${WWROOT} -o mpol=interleave # mpol ignored for ramfs
    tar -cf - --exclude ./proc --exclude ./sys --exclude ./dev --exclude ./run --exclude ./newroot . | tar -xf - -C /newroot
    mkdir /newroot/proc /newroot/dev /newroot/sys /newroot/run 2>/dev/null
    echo "Switching to new rootfs and invoking /warewulf/wwinit..."
    exec /sbin/switch_root /newroot /warewulf/wwinit
else
    echo "ERROR: Unrecognized rootfs type requested: ${WWROOT}"
    echo "Rebooting in 1 minute..."
    sleep 60
    echo b > /proc/sysrq-trigger || /sbin/reboot -f
fi

echo
echo "ERROR: There was a problem with the initial provisioning process."
echo "Rebooting in 1 minute..."
sleep 60
echo b > /proc/sysrq-trigger || /sbin/reboot -f