#!/bin/sh


SDDEV="/dev/block/mmcblk0p"
SDSYS="/sys/block/mmcblk0/mmcblk0p" 

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echo "  *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*"
echo "  *                                             *"
echo "  *  Ramdisk for Toshiba G900 from Angell Fear  *"
echo "  *  LINUX SUPPORT                              *"
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mkdir -m 0755 /proc
mount -t proc proc /proc
mkdir -m 0755 /sys
mount -t sysfs sys /sys
mkdir -m 0755 /var
mkdir -m 0755 /var/run
mkdir -m 0755 /rootfs
mkdir -m 0755 /etc
touch /etc/mtab

#Configure Devices
MAKEDEVS


fail() {
    echo "======================="
    echo "$1"
	while [ true ] ; do
		exec /bin/sh
		sleep 1
	done    
}

startup(){
		if [ ! -f rootfs/bin/sh ]; then
			fail "RootFS not found..."
		fi
		if [ -f rootfs/bin/sh ]; then
			dmesg > rootfs/kernel.log
			if [ -f /proc/sys/net/ipv4/tcp_syncookies ];then
					if [ `cat /proc/sys/net/ipv4/tcp_syncookies` != 0 ]; then
						sysctl -w net.ipv4.tcp_syncookies=0
					fi
			fi
			mount -t proc proc /rootfs/proc
			mount -t sysfs sys /rootfs/sys
			#mkdir -p /rootfs/mnt/sd
			
			mount -t tmpfs -o size=100K tmpfs /rootfs/dev
			cp -a /dev/* /rootfs/dev
			
			#mount -o bind /sdcard /rootfs/mnt/sd

			umount -l /proc
			umount -l /sys
			
#copy Firmware 
#
#		if [ ! -f /rootfs/lib/firmware/libertas/gspi8385_hlp.bin ]; then
#			echo "Copy firmware: libertas gspi8385_hlp.bin"
#			mkdir -p /rootfs/lib
#			mkdir -p /rootfs/lib/firmware
#			mkdir -p /rootfs/lib/firmware/libertas
#			cp /lib/firmware/libertas/gspi8385_hlp.bin /rootfs/lib/firmware/libertas/gspi8385_hlp.bin
#		fi
#		if [ ! -f /rootfs/lib/firmware/libertas/gspi8385.bin ]; then
#			echo "Copy firmware: libertas gspi8385.bin"
#			mkdir -p /rootfs/lib
#			mkdir -p /rootfs/lib/firmware
#			mkdir -p /rootfs/lib/firmware/libertas
#			cp /lib/firmware/libertas/gspi8385.bin /rootfs/lib/firmware/libertas/gspi8385.bin
#		fi
#done



			cd /rootfs 
			mkdir -p initrd 
			#pivot_root . initrd 
			#/bin/sh
			exec switch_root /rootfs /sbin/init
 			#exec chroot . /sbin/init <dev/console >dev/console 2>&1 

#Теперь можно демонтировать initrd и освободить память занятую RAM диском: 
# umount /initrd 
# blockdev -flushbufs /dev/ram0 # /dev/rd/0 if using devfs 

			fail "no chroot =("
			#chroot rootfs /sbin/init
		fi
}

fsckdisk()
{
	echo "-------------------------"
	echo "fsck '${1}' "
	echo "${1} /sdcard/${1} ext2 relatime 1 1" >> /etc/fstab
	e2fsck -y ${1} 
	echo "-------------------------"
}

mountloop()
{
		if [ -f /sdcard/part${1}/${2} ]; then
			echo "Found image RootFS on ${SDDEV}${1} in file ${2}"
			/bin/losetup /dev/block/loop${1} /sdcard/part${1}/${2}
			[ $? -eq 0 ] || fail "Failed to losetup part${1} ${2} "
			fsckdisk /dev/block/loop${1}
			[ $? -eq 0 ] || echo "${2} fixed!!!!"
			echo "Mount 'part${1}/${2}' to /rootfs"
			/bin/mount -t ext2 -o rw /dev/block/loop${1} /rootfs
			[ $? -eq 0 ] || fail "Failed to mount RootFS part${1} ${2}"
			echo "Mount 'part${1}' to /mnt/mmc${1}"
			mkdir -p /rootfs/mnt
			mkdir -p /rootfs/mnt/mmc${1}
			/bin/mount -t vfat -o rw,flush,noatime ${SDDEV}${1} /rootfs/mnt/mmc${1}
			ver=`uname -r`
			if [ -f /sdcard/part${1}/modules-${ver}.tar.gz ]; then
					echo "Found new modules modules-${ver}.tar.gz"
					echo "Unpack modules-${ver}.tar.gz"
					rm -fr /rootfs/lib/modules/${ver}
					tar -xzf /sdcard/part${1}/modules-${ver}.tar.gz -C /rootfs
#					echo "Delete modules modules-${ver}.tar.gz"
#					rm -f /sdcard/part${1}/modules-${ver}.tar.gz
			fi
		fi

}

sdpart() {
	if [  -e ${SDSYS}${1} ] ; then
		echo "SD card: part ${1} - found";
		/bin/mkdir -p /sdcard/part${1}
		/bin/mount ${SDDEV}${1} /sdcard/part${1} > /dev/null 2>&1
		if [ -f /sdcard/part${1}/bin/sh ]; then
			echo "Found RootFS on ${SDDEV}${1}"

			/bin/umount /sdcard/part${1}
			rm -rf /sdcard/part${1}
			[ ! $? -eq 0 ] || rm -rf /sdcard/part${1}
			
			fsckdisk ${SDDEV}${1}
			/bin/mount -t ext2 ${SDDEV}${1} rootfs > /dev/null 2>&1
			[ $? -eq 0 ] || fail "Failed to mount rootfs SDpart${1} "

			startup
		fi
		
		mountloop ${1} ubuntu.ext2
		mountloop ${1} rootfs.ext2
		mountloop ${1} rootfs.img
		
		if [ -f /sdcard/part${1}/init.sh ]; then
			echo "found initial script exec"
			sh /sdcard/part${1}/init.sh						
		fi		
	fi

}

while [ ! -e /sys/block/mmcblk0 ] ; do
	echo "Waiting for SD Card"
	sleep 2
done


sdpart 1
sdpart 2
sdpart 3
sdpart 4
sdpart 5

startup