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authorMatthias Hentges <oe@hentges.net>2005-08-04 18:07:53 +0000
committerOpenEmbedded Project <openembedded-devel@lists.openembedded.org>2005-08-04 18:07:53 +0000
commit1ccca3990804fa39ec648c415c1a24756fab83c8 (patch)
tree08c0acce82c0adae3ccea22ae5573f129f2cb0dc /packages/altboot/files/altboot-menu/99-ownScripts-example
parent019903803d5b8d1fead525d1f0d197b1786c1b8c (diff)
altboot: Sources are now managed by OE's mt database.
Diffstat (limited to 'packages/altboot/files/altboot-menu/99-ownScripts-example')
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diff --git a/packages/altboot/files/altboot-menu/99-ownScripts-example b/packages/altboot/files/altboot-menu/99-ownScripts-example
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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="altboot sample"
+
+# We can use that to deactivate certain scripts:
+exit 0
+
+# 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"
+
+
+ echo -n "Loading SD kernel module..."
+ /sbin/insmod $SD_KERNEL_MODULE >/dev/null 2>&1 && echo ok || die "insmod failed"
+
+ 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 $SD_MOUNTPOINT failed"
+
+ echo ""
+
+ # Give the SD and CF mounting some time. This is a must for SD
+ sleep 2
+ ##########################################
+
+ # Once the medium (be it a CF or SD card, or even a NFS drive) is mounted somewhere,
+ # just call check_target with the mountpoint as parameter.
+ # check_target searches the medium for a real filesystem and loop-images and
+ # asks the user what to boot if there are several choices.
+
+ # Check for a real fs and loop-images.
+ check_target "$SD_MOUNTPOINT" >/dev/tty0
+
+ # Done :)
+
+}
+
+
+case "$1" in
+title) echo "$M_TITLE";;
+run) run_module "$2";;
+esac
+