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# !/bin/sh
#
# Copyright Matthias Hentges (c) 2005
#
# License: GPL (see http://www.gnu.org/licenses/gpl.txt for a copy of the GPL)
M_TITLE="Boot SD card"
die() {
echo "ERROR: $1" >/dev/tty0
exec $SH_SHELL </dev/tty0 >/dev/tty0 2>&1
}
# This function is activated by init.altboot by calling this script with the "run" option
run_module() {
test -e /etc/altboot.func && . /etc/altboot.func || die "ERROR: /etc/altboot.func not found. Check your installation!"
echo -n "Mounting rootfs rw..." >/dev/tty0
mount -o remount,rw / >/dev/tty0 2>&1 && echo ok >/dev/tty0|| die "mount -o remount,rw / failed"
echo -n "Generating device files..." >/dev/tty0
/etc/init.d/devices start && echo ok >/dev/tty0|| die "FAILED"
# We can't trust that the SD device file is there when running kernel 2.6 w/ udev
# and starting udev at this point may not be the best idea...
if `uname -r | grep -q "2.6"`
then
#Let's just assume the device file name never changes...
dev_no="`echo "$SD_DEVICE" | sed -n "s/\/dev\/mmcblk\(.*\)p\(.*\)/\1/p"`"
part_no="`echo "/dev/mmcblk0p1" | sed -n "s/\/dev\/mmcblk\(.*\)p\(.*\)/\2/p"`"
! test -e /dev/mmcblk${dev_no} && mknod /dev/mmcblk${dev_no} b 254 0
! test -e /dev/mmcblk${dev_no}p${part_no} && mknod /dev/mmcblk${dev_no}p${part_no} b 254 $part_no
fi
# Kernel 2.6 has the SD driver compiled into the kernel
if test -n "$SD_KERNEL_MODULE"
then
echo -n "Loading SD kernel module..."
/sbin/insmod $SD_KERNEL_MODULE >/dev/null 2>&1 && echo ok || die "insmod failed"
else
echo "No SD kernel module, configured, assuming it's build-in"
fi
echo -n "Mounting $SD_MOUNTPOINT..." >/dev/tty0
/bin/mount -t auto -o defaults,noatime $SD_DEVICE $SD_MOUNTPOINT >/dev/null 2>&1 && echo ok >/dev/tty0|| die "/bin/mount -t auto -o defaults,noatime $SD_DEVICE $SD_MOUNTPOINT failed"
echo ""
# Give the SD and CF mounting some time. This is a must for SD
sleep 2
# Check for a real fs and loop-images.
check_target "$SD_MOUNTPOINT" >/dev/tty0
}
case "$1" in
title) echo "$M_TITLE";;
run) run_module "$2";;
esac
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