mount_sdcard()
{
	mountpoint -q sdcard && return
	if [ -n "$SDCARD" -a -e /mnt/$SRC$SDCARD ]; then
		if [ ! -e /android$SDCARD ]; then
			remount_rw
			sddir=`dirname $SDCARD`
			mkdir /android$sddir
			mount --bind /mnt/$SRC$sddir /android$sddir
		fi
	elif [ "$SDCARD" = "premount" ]; then
	# WARNING: premount the sdcard is deprecated since froyo-x86.
	# It is left only for backward compatibility and may be removed
	# in the future.
		if [ -d /mnt/$SRC/sdcard ]; then
			remount_rw
			mount --bind /mnt/$SRC/sdcard mnt/sdcard
		elif [ -d data/sdcard ]; then
			mount --bind data/sdcard mnt/sdcard
		else
			mount -o mode=2777,uid=1000,gid=1015 -t tmpfs tmpfs mnt/sdcard
		fi
	fi
}