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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)
# This file will teach you how to implement your own scripts while using existing altboot
# code.
# /sbin/init.altboot searches /etc/altboot-menu for scripts. It will only list scripts which
# return a title when run with the "title" parameter.
# Script which do not return a title will never be shown in the boot menu!
#
M_TITLE="Boot from images on HDD3"
# The "title" parameter is implemented at the end of this script so it will never be reached
# and the script will simply be ignored by altboot.
# The die() function aborts the boot if something goes wrong and sets STDIN / STDERR / STDOUT
# correctly.
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() {
# altboot.func contains re-useable code. If you intend to use check_target (see below)
# you must keep this line. If not, delete it.
test -e /etc/altboot.func && . /etc/altboot.func || die "ERROR: /etc/altboot.func not found. Check your installation!"
# The only thing you'll have to do is get your medium mounted.
# The following lines mount a SD card on 2.4-series kernels on a Zaurus
##########################################
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"
cardmgr -o < /dev/tty0 > /dev/tty0 2>&1 || echo "cardmgr -o failed!"
check_fs $HDD3_DEVICE $HDD3_TYPE
echo -n "Mounting $HDD3_MOUNTPOINT..." >/dev/tty0
if [ "$HDD3_TYPE" = "" ]; then
HDD3_TYPE="auto"
fi
/bin/mount -t $HDD3_TYPE -o defaults,noatime $HDD3_DEVICE $HDD3_MOUNTPOINT >/dev/null 2>&1 && echo ok >/dev/tty0|| die "/bin/mount -t auto -o defaults,noatime $HDD3_DEVICE $HDD3_MOUNTPOINT failed"
echo ""
# Give the SD and CF mounting some time. This is a must for SD
sleep 2
##########################################
# Once the medium (be it a CF or SD card, or even a NFS drive) is mounted somewhere,
# just call check_target with the mountpoint as parameter.
# check_target searches the medium for a real filesystem and loop-images and
# asks the user what to boot if there are several choices.
# Check for a real fs and loop-images.
check_target "$HDD3_MOUNTPOINT" >/dev/tty0
# Done :)
}
case "$1" in
title) echo "$M_TITLE";;
run) run_module "$2";;
esac
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