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#!/bin/sh
. /etc/default/rcS
FSTYPE=ext2
if test ! -e /proc/mtd
then
test "$VERBOSE" != "no" && echo >&2 "/proc not mounted, or mtd support not enabled in kernel."
exit
fi
RAM_MTD_NO=`cat /proc/mtd | grep mtdram | tail -n 1 | cut -d: -f1 | cut -dd -f2`
if test -z "$RAM_MTD_NO"; then exit 0; fi
if test -e /dev/mtdblock/0
then
RAM_MTD=/dev/mtd/$RAM_MTD_NO
RAM_MTDBLK=/dev/mtdblock/$RAM_MTD_NO
else
RAM_MTD=/dev/mtd$RAM_MTD_NO
RAM_MTDBLK=/dev/mtdblock$RAM_MTD_NO
fi
RAM_MNTPT=/mnt/ram
RAM_MTD_SIZE_HEX=`cat /proc/mtd | grep mtdram | tail -n 1 | cut -d" " -f 2`
RAM_MTD_SIZE=`dc 0x$RAM_MTD_SIZE_HEX 1024 / p`
test -e /etc/ramdisk.conf && OLD_MTD_SIZE=`cat /etc/ramdisk.conf`
echo $RAM_MTD_SIZE > /etc/ramdisk.conf
if test ! -d "$RAM_MNTPT"; then echo >&2 "Mountpoint $RAM_MNTPT does not exist!"; exit 0; fi
if (test ! -e /etc/.configured) || test "$OLD_MTD_SIZE" != "$RAM_MTD_SIZE"; then
test "$VERBOSE" != "no" && echo -n "Wiping ramdisk: "
dd if=/dev/zero bs=1024 count=$RAM_MTD_SIZE of=$RAM_MTD 2>/dev/null >&2 || exit 1
test "$VERBOSE" != "no" && echo "$RAM_MTD";
test "$VERBOSE" != "no" && echo -n "Creating filesystem on ramdisk: "
mkfs.$FSTYPE $RAM_MTDBLK 2>/dev/null >&2 || exit 1
test "$VERBOSE" != "no" && echo "$RAM_MTDBLK";
fi
test "$VERBOSE" != "no" && echo -n "Mounting ramdisk: "
mount -t $FSTYPE $RAM_MTDBLK $RAM_MNTPT 2>/dev/null >&2 || exit 1
test "$VERBOSE" != "no" && echo "$RAM_MTDBLK";
exit 0
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