#!/static/sh
#
# Metadistros boot up script - main program
#
# Based on:
#
#  - KNOPPIX General Startup Script by Klaus Knopper <knoppix@knopper.net>
#  - Gentoo boot up script by Daniel Robbins <drobbins@gentoo.org>
#
# Copyright 2003 Metadistros [ http://metadistros.hispalinux.es/ ]
# Distributed under the GPL


# ================================================================ #
#                       Start script                               #
#
# Don't allow interrupt signals
trap "" 1 2 3 15

# Set PATH
PATH=/static
export PATH

# Clean input/output
exec >/dev/console </dev/console 2>&1

umask 022

# Mount /, proc and devpts
mount -o remount,rw /
mount -t proc none /proc
mount -t devpts none /dev/pts


# Enable low latency
echo "1" > /proc/sys/kernel/lowlatency

# Tell kernel where modprobe lives
echo "/static/modprobe" > /proc/sys/kernel/modprobe


# ================================================================ #
#            Load configurations files                             #
#
. /etc/metadistros/var.conf
. /etc/metadistros/i18n.conf
. /etc/metadistros/functions

# Add user defined in var.conf ($USERNAME)
createuser


# ================================================================ #
#                         Welcome message                          #
#

progressbar 51 "${WELCOME}"
if [ "${VERBOSE}" = "yes"  ]; then echo -e "${WHITE}${WELCOME}${NORMAL}\n\n"; fi


# ================================================================ #
#                   First hardware detection                       #
#

# Check for devices, use modules on bootfloppy first
if [ "${INTERACTIVE}" = "yes" ]; then
	# Load keymap
	setkeymap

	# Let the user select interactively
	if [ "${SCSI}" = yes ]
	then
		askmodules scsi     `cd /modules/scsi;     echo *.o`
		SCSI_MODULES="${MODULES}"
	fi
	if [ "${FIREWIRE}" = yes ]
	then
		askmodules firewire `cd /modules/firewire; echo *.o`
		FIREWIRE_MODULES="${MODULES}"
	fi
	if [ "${ATARAID}" = yes ]
	then
		askmodules ataraid  `cd /modules/ataraid;  echo *.o`
		ATARAID_MODULES="${MODULES}"
	fi
	if [ "${PCMCIA}" = yes ]
	then
		askmodules pcmcia   `cd /modules/pcmcia;   echo *.o`
		PCMCIA_MODULES="${MODULES}"
	fi
	if [ "${USB}" = yes ]
	then
		askmodules usb      `cd /modules/usb;      echo *.o`
		USB_MODULES="${MODULES}"
	fi
fi

# Load selected/default modules
if [ "${FIREWIRE}" = "yes" ] && [ -n "${FIREWIRE_MODULES}" ] 
then
	progressbar 52 "${PBMESSAGE1}"
	loadmodules firewire ${FIREWIRE_MODULES}
fi
if [ "${ATARAID}"  = "yes" ] && [ -n "${ATARAID_MODULES}"  ]
then
	progressbar 53 "${PBMESSAGE2}"
	loadmodules ataraid  ${ATARAID_MODULES}
fi
if [ "${PCMCIA}"   = "yes" ] && [ -n "${PCMCIA_MODULES}"   ]
then
	progressbar 54 "${PBMESSAGE3}"
	loadmodules pcmcia   ${PCMCIA_MODULES}
fi
if [ "${USB}"      = "yes" ] && [ -n "${USB_MODULES}"      ]
then
	progressbar 55 "${PBMESSAGE4}"
	loadmodules usb      ${USB_MODULES}
fi
if [ "${SCSI}"     = "yes" ] && [ -n "${SCSI_MODULES}"     ]
then
	progressbar 56 "${PBMESSAGE5}"
	loadmodules scsi     ${SCSI_MODULES}
	FOUND_SCSI=$?
fi
# End of hardware check


# ================================================================ #
#             Check for misc modules in expert mode                #
#
if [ "${INTERACTIVE}" = "yes" ]; then
	answer=""
	while test "${answer}" != "n" -a "${answer}" != "N"; do
		echo -n "${MESSAGE1}"
		read answer
		case "${answer}" in n*|N*) break; ;; esac
		if mountmodules new; then
			askmodules new `cd /modules/others; echo *.o`
			test -n "${MODULES}" && loadmodules new ${MODULES}
			umountmodules
		fi
	done
fi
# All interactively requested modules should be loaded now.


# ================================================================ #
#                       Find META directory                        #
#

progressbar 57 "${PBMESSAGE6}"

checkformetadirectory ${FOUND_SCSI}

case $? in
	0)
		FOUND_META="yes"
		;;
	1)
		FOUND_META="no"
		;;
esac


# ================================================================ #
#                      load  (c)loop image                         #
#
# Show DEBUG info
[ "${DEBUG}" = "yes" ] && echo "6" > /proc/sys/kernel/printk

# Check for sufficient memory to mount extra ramdisk for /home + /var
progressbar 58 "${PBMESSAGE7}"
checkformemory

# Mount (c)loop image
progressbar 59 "${PBMESSAGE8}"
mountimage

# Disable kernel messages to console again
[ "${DEBUG}" = "no" ] && echo "0" > /proc/sys/kernel/printk

 
# ================================================================ #
#            Final test if everything succeeded                    #
#
if [ "${FOUND_META}" != "no" ]; then
	progressbar 60 "${PBMESSAGE9}"

	# Set final PATH
	PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin"
	export PATH

	# copy library cache
	cat /META/etc/ld.so.cache > /etc/ld.so.cache

	# Verbose mode? -> Enable kernel messages
	if [ "${VERBOSE}" = "yes" ]; then echo "6" > /proc/sys/kernel/printk; fi	
	
	# Debian weirdness
	/bin/cp -a /META/etc/alternatives /etc/ 2>/dev/null
	
	# From here, we should have all essential commands available.
	hash -r
	
	# Clean up /
	rm -rf /modules

	# Create common WRITABLE (empty) dirs
	createdirs

	# Now tell kernel where the real modprobe lives
	echo "/sbin/modprobe" > /proc/sys/kernel/modprobe
	
	# Change root device from /dev/fd0 to /dev/ram0
	echo "0x100" > /proc/sys/kernel/real-root-dev
	
	# Give control to the init process.
	if [ "${VERBOSE}" = "yes" ]; then echo "${MESSAGE2}"; fi
	rm -f /linuxrc

	# INIT take the control
	exec chroot . /sbin/init </dev/console >/dev/console 2>&1

else
	( [ "${VERBOSE}" != "yes" ] && [ "${DEBUG}" != "yes" ] ) && echo -e "${CLEAR}"
	echo -e "${MESSAGE3}"
	setkeymap
	echo "6" > /proc/sys/kernel/printk
	PS1="\[^[[36m\]${DISTRO}:\[^[[32;01m\]\w\[^[[0m\]\[^[[36m\]\# "
	export PS1
	# Allow signals
	trap 1 2 3 15
	echo ""

	exec chroot / /static/ash
fi