#!/bin/sh

mkdir /sys
mkdir /proc
mkdir /tmp
mkdir -p /var/lock
mount -t sysfs none /sys
mount -t proc none /proc

# Note that this only becomes /dev on the real filesystem if udev's scripts
# are used; which they will be, but it's worth pointing out
mount -t tmpfs -o mode=0755 udev /dev
touch /dev/.initramfs-tools
mkdir /dev/.initramfs
mknod /dev/console c 5 1 
mknod /dev/null c 1 3

# Export the dpkg architecture
export DPKG_ARCH=
. /conf/arch.conf

# Bring in the main config
. /conf/initramfs.conf
for i in conf/conf.d/*; do
	[ -f ${i} ] && . ${i}
done
. /scripts/functions

# Parse command line options
export break=
export init=/sbin/init
export quiet=n
export readonly=y
export ROOT=
export resume=${RESUME}
export rootmnt=/root
export debug=
for x in $(cat /proc/cmdline); do
	case $x in
	init=*)
		init=${x#init=}
		;;
	root=*)
		ROOT=${x#root=}
		case $ROOT in
		LABEL=*)
			ROOT="/dev/disk/by-label/${ROOT#LABEL=}"
			;;
		UUID=*)
			ROOT="/dev/disk/by-uuid/${ROOT#UUID=}"
			;;
		esac
		;;
	nfsroot=*)
		NFSROOT=${x#nfsroot=}
		;;
	boot=*)
		BOOT=${x#boot=}
		;;
	resume=*)
		resume=${x#resume=}
		;;
	quiet)
		quiet=y
		;;
	ro)
		readonly=y
		;;
	rw)
		readonly=n
		;;
	debug)
		debug=y
		exec >/tmp/initramfs.debug 2>&1
		set -x
		;;
	break=*)
		break=${x#break=}
		;;
	break)
		break=premount
		;;
	esac
done

depmod -a
maybe_break top

# Don't do log messages here to avoid confusing usplash
run_scripts /scripts/init-top

. /scripts/${BOOT}
parse_numeric ${ROOT}

maybe_break modules
log_begin_msg "Loading essential drivers..."
load_modules
log_end_msg

maybe_break premount
[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/init-premount"
run_scripts /scripts/init-premount
[ "$quiet" != "y" ] && log_end_msg

maybe_break mount
log_begin_msg "Mounting root file system..."
mountroot
log_end_msg

maybe_break bottom
[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/init-bottom"
run_scripts /scripts/init-bottom
[ "$quiet" != "y" ] && log_end_msg

# Move virtual filesystems over to the real filesystem
mount -n -o move /sys ${rootmnt}/sys
mount -n -o move /proc ${rootmnt}/proc

while [ ! -x ${rootmnt}${init} ]; do
	panic "Target filesystem doesn't have ${init}"
done

maybe_break init

# Unset the problematic debug variable and chain to real filesystem
unset debug
exec run-init ${rootmnt} ${init} "$@" <${rootmnt}/dev/console >${rootmnt}/dev/console
