(reset history)

README

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+The scripts to encrypt /home/ and swap with /dev/urandom as the keyfile. 
+
+
+Update:
+=======
+The method as described below is not be the best for the most paranoid
+users. The N900 may not have enough entropy when generating the keys.
+The result: low-quality keys. 
+Please refer to the cryptsetup manual for more details, especially
+the section. "NOTES ON RANDOM NUMBER GENERATORS".
+Thanks to "robotanarchy" for pointing this out. 
+In practise, if you are not protecting yourself against 
+certain 3 letter organizations you should be ok anyway...
+
+The method as described below was pretty much the only possible way back
+then when this document was written.
+These days, a much simpler approach would be to use rescueOS
+to mount the home partition, copy all the data to your HDD on your PC,
+overwriting the partition with /dev/urandom data
+and then to use cryptsetup, e. g. with --use-random to luksFormat
+the home partition. Then you simply copy all the data back.
+However, you still need to modify bootscripts, therefore 
+you can still refer to the instructions below. 
+Of course, you can also use rescueOS to modify the bootscripts.
+This should make things easier.
+
+
+Partially outdated:
+
+Required for installation:
+==========================
+-busybox's loadkmap and watchdog. You can get these packages by installing "busybox-power".
+-dmcrypt, cryptsetup etc. Verify these things work before putting them in init scripts.
+-Console skills. 
+
+Reflashing COMBINED with an encrypted home partition is funny. Hope that 
+you never have to.
+
+Read the warning in rcS.
+
+
+Getting started
+========================
+WARNING: It's easy to mess it up (in the first try). 
+You are doing everything at own risk. Don't expect support if something
+goes wrong.
+
+
+As long as we are in hildon, the partition is in use, which means we can 
+not just unmount and encrypt it. In R&D mode(with disabled watchdogs) 
+through ssh, after killing hildon and other stuff, it might be possible, but it is
+too messy. 
+
+First, we need the fbcon kernel module. power kernel >=v47 ships it, 
+but you can also compile it into the kernel in case you use a different kernel. 
+
+If you have the module:
+++++++++++++++++++++++++
+Open /sbin/preinit
+Go to the init_system() function.
+above of the "}" insert: modprobe fbcon. 
++++++++++++++++++++++++++
+This seems to be a good place for it. /sbin/preinit is under
+some nokia licence which prohibits sharing that file. 
+
+1. Backup /home/ without /home/user/MyDocs using cp -a to preserve permissions. 
+
+2. Now we just need a shell. /etc/init.d/rcS asks for it. After
+"/sbin/hwclock -s || true" we can add it this code: 
+
+watchdog -t 10 /dev/twl4030_wdt #To feed watchdogs
+watchdog -t 10 /dev/watchdog
+loadkmap < /nokia-n900.kmap		#To get special characters working
+echo "Press any key to enable shell"
+read -n 1 -t 2 shellmode
+if [ -n "$shellmode"  ] ; then
+sh
+fi
+killall watchdog #so that later dsme can continue doing this job. 
+
+You need something like the busybox-power package(stock version doesn't 
+have loadkmap and watchdog included).
+
+They keymap can be found in meego-ce or here:
+http://bazaar.launchpad.net/~pali/+junk/maemo_recovery-boot/view/head:/nokia-n900.map
+However, you have to convert it (not on the N900) by using "loadkeys -b nokia-n900.map > nokia-n900.kmap"
+
+
+3. Reboot. 
+4. An example setup:
+   cryptsetup luksFormat /dev/mmcblk0p2
+   cryptsetup luksOpen /dev/mmcblk0p2 home_luks
+   mkfs.ext3 /dev/mapper/home_luks
+   mount -t ext3 /dev/mapper/home_luks /mnt/
+   #and now copy back with permissions and unmount /mnt/
+  
+  NOTE: This does not perform a secure delete. Keep this in mind!
+  
+5. If you type exit now, your device won't boot because you still have the old bootscripts. 
+Study the scripts in the directory you got this README from. 
+
+Start with rcS-late (it mounts the home partition). 
+
+Then modify rcS (after your first successful bootup with an encrypted home partition). 
+It'll ask you on every boot for the LUKS password. 
+
+If everything looks fine for you, replace the scripts. 
+
+osso-mmc-mount.sh is also useful. 
+
+Happy hacking! 

osso-mmc-mount.sh

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+#!/bin/sh
+# This file is part of ke-recv
+#
+# Copyright (C) 2005-2009 Nokia Corporation. All rights reserved.
+#
+# Author: Kimmo Hämäläin <kimmo.hamalainen@nokia.com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License 
+# version 2 as published by the Free Software Foundation. 
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+# Return codes:
+# 0 - mounted read-write
+# 1 - could not mount
+# 2 - mounted read-only
+
+#Modified by NIN101 to stop mounting attempts on encrypted
+#partitions
+
+PDEV=$1  ;# preferred device (partition)
+MP=$2    ;# mount point
+
+#Remove if your MyDocs partition is NOT encrypted. 
+if [ "$PDEV" = "/dev/mmcblk0p1" ] ; then
+exit 
+fi
+
+#unnecessary actually
+if [ "$PDEV" = "/dev/mmcblk0p2" ] ; then
+exit
+fi
+
+if [ "$PDEV" = "/dev/dm-0" ] ; then
+exit 
+fi
+
+grep "$PDEV " /proc/mounts > /dev/null
+if [ $? = 0 ]; then
+  logger "$0: $PDEV is already mounted"
+  exit 0
+fi
+
+if [ ! -d $MP ]; then
+  mkdir -p $MP
+fi
+
+if ! [ $PDEV = /dev/mmcblk0 -o $PDEV = /dev/mmcblk1 ]; then
+  # check the FAT magic number
+  PNUM=$(echo $PDEV | sed "s#/dev/mmcblk[01]p##")
+  DEV=$(echo $PDEV | sed "s#p[1234]##")
+  PID=$(sfdisk -c $DEV $PNUM)
+  case "$PID" in
+    b | c | e | 4 | 6 | 14 | 16 | 1b | 1c | 1e)
+        logger "$0: $PDEV partition type is '$PID'"
+        ;;
+    *)
+        logger "$0: $PDEV type '$PID' is not FAT32 or FAT16"
+        exit 1
+        ;;
+  esac
+fi
+
+# time limited check
+#/sbin/dosfsck -I -n -T 10 $PDEV
+#if [ $? != 0 ]; then
+#  logger "$0: $PDEV is corrupt, trying to mount it read-only"
+#  mmc-mount $PDEV $MP ro
+#  if [ $? = 0 ]; then
+#    logger "$0: $PDEV mounted read-only"
+#    exit 2
+#  else
+#    logger "$0: Couldn't mount $PDEV read-only"
+#    exit 1
+#  fi
+#fi
+
+mmc-mount $PDEV $MP rw
+RC=$?
+logger "$0: mounting $PDEV read-write to $MP, rc: $RC"
+
+if [ $RC = 0 ]; then
+  # create some special directories for user's partition
+  if [ "x$MP" = "x/home/user/MyDocs" -a -w $MP ]; then
+    # use global folder names
+    USERDIRS="/home/user/.config/user-dirs.dirs"
+    if [ -f "$USERDIRS" ]; then
+      HOME='/home/user'
+      source "$USERDIRS"
+      mkdir -p "$XDG_DOCUMENTS_DIR" 
+      mkdir -p "$XDG_PICTURES_DIR"
+      mkdir -p "$XDG_MUSIC_DIR"
+      mkdir -p "$XDG_VIDEOS_DIR" 
+      mkdir -p "$NOKIA_CAMERA_DIR"
+    else
+      # fallback
+      for d in .sounds .videos .documents .images .camera; do
+        mkdir -p $MP/$d
+      done
+    fi
+    touch $MP
+  elif [ "x$MP" = "x/home/user/MyDocs" ]; then
+    logger "$0: '$MP' is not writable"
+  elif [ "x$MP" = "x/media/mmc1" -a -w $MP ]; then
+    # use global folder names
+    USERDIRS="/home/user/.config/user-dirs.dirs"
+    if [ -f "$USERDIRS" ]; then
+      HOME='/home/user'
+      source "$USERDIRS"
+      mkdir -p "$NOKIA_MMC_CAMERA_DIR"
+    fi
+  elif [ "x$MP" = "x/media/mmc1" ]; then
+    logger "$0: '$MP' is not writable"
+  fi
+fi
+
+exit $(($RC != 0))

rcS

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+#/bin/sh
+# Copyright(C) 2006 Nokia Corporation.
+
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License version 2 as
+#  published by the Free Software Foundation.
+
+#  This program is distributed in the hope that it will be useful, but
+#  WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  General Public License for more details.
+
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
+#  USA
+
+#Modified by NIN101(http://nin101.uni.cx).
+#Provides: Shell if demanded by user; maps an LUKS encrypted partition
+#Requires busybox-power or at least the applets "loadkmap" & "watchdog"
+
+#WARNING: Charging WON'T work when device is turned off before the
+#user pluggs in the charger. Or: It will, but you have to enter
+#your LUKS password at a state where the screen is very very dark :-).
+#This is because home gets mounted before BME starts. 
+
+ 
+umask 022
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+MODULES="twl4030-vibra
+dspbridge
+iommu2
+omap3-iommu
+omap34xxcam-mod
+omap_previewer_hack
+board-rx51-camera
+et8ek8
+ad5820
+adp1653
+vs6555
+uinput"
+
+if [ -L /var/run ]
+then
+	rm -f /var/run
+	mkdir /var/run
+fi
+
+mount -n -t proc proc /proc
+mount -n -t sysfs sysfs /sys
+mount -n -t tmpfs -o size=1M,noatime tmpfs /tmp
+mount -n -t tmpfs -o size=256k,mode=0755,nosuid,noatime tmpfs /var/run
+
+#MODE=`getbootstate`
+
+# This doesn't really belong here, but we have start this so early
+start_bootchart(){
+	if [ -e /bootchart -a -e /etc/init.d/bootchart ]
+	then
+		/etc/init.d/bootchart start
+	fi
+}
+
+start_softupd()
+{
+    	echo "Starting software updater"
+	/etc/init.d/softupd.rcS
+}
+
+in_flash_mode()
+{
+	grep update /proc/component_version 1>/dev/null 2>/dev/null
+}
+
+mount_devpts() {
+	TTYGRP=5
+	TTYMODE=620
+
+	if [ ! -d /dev/pts ]
+	then
+	    mkdir /dev/pts
+	fi
+
+	if [ ! -c /dev/ptmx ]
+	then
+	    mknod /dev/ptmx c 5 2
+		chmod 666 /dev/ptmx
+	fi
+
+	mount -n -t devpts -ogid=$TTYGRP,mode=$TTYMODE devpts /dev/pts
+	rm -rf /var/tmp/*
+}
+
+# I hate this hack.  -- Md
+make_extra_nodes () {
+    if [ "$(echo /lib/udev/devices/*)" != "/lib/udev/devices/*" ]; then
+	cp -a /lib/udev/devices/* /dev/
+    fi
+  grep '^[^#]' /etc/udev/links.conf | \
+  while read type name arg1; do
+    [ "$type" -a "$name" -a ! -e "/dev/$name" -a ! -L "/dev/$name" ] ||continue
+    case "$type" in
+    L)
+      ln -s $arg1 /dev/$name
+      ;;
+    D)
+      mkdir -p /dev/$name
+      ;;
+    M)
+      mknod /dev/$name $arg1 && chmod 600 /dev/$name
+      ;;
+    *)
+      echo "unparseable line ($type $name $arg1)"
+      ;;
+    esac
+  done
+}
+
+load_extra_modules () {
+    echo -n "Loading extra modules..."
+    for i in $MODULES; do
+	echo "Loading $i"
+	modprobe -q $i ||:
+    done
+    echo "done."
+}
+
+# Mount home and paging partitions if they are available
+mount_mmc(){
+   device=$1
+   swap=$device"p1"
+   home=$device"p2"
+   test=$device"p3"
+
+   if [ -e $test ]
+   then
+      echo "Mounting partition $swap for paging"
+      # swap disabled as a workaround for Xorg bug, per NB#111807.
+      swapon $swap
+      modprobe ext3
+      echo "Mounting partition $home as home directory"
+      mount -t ext3 -o noatime,commit=1,data=writeback $home /home
+   else
+      echo "No paging partition available as $swap"
+      echo "No home partition available as $home"
+   fi
+}
+
+prepare_start_udev()
+{
+	. /etc/udev/udev.conf
+
+	if [ -z "$tmpfs_size" ]; then
+		tmpfs_size="1M"
+	fi
+
+	ACTION=add
+	echo -n "Mounting a tmpfs over /dev..."
+	mount -n -o size=$tmpfs_size,mode=0755,noatime -t tmpfs none /dev
+	echo "done."
+	mkdir -p /dev/.udev/db /dev/.udev/queue
+	echo "" > /sys/kernel/uevent_helper
+	echo -n "Creating extra device nodes... "
+	make_extra_nodes
+	echo "done."
+}
+
+start_udev()
+{
+    	prepare_start_udev
+	/sbin/udevd --daemon
+}
+
+make_nodes()
+{
+	echo -n "Creating device nodes... "
+
+	if [ -x /sbin/udevtrigger ]; then
+		/sbin/udevtrigger
+	else
+		/sbin/udevadm trigger
+		#wait for all events
+		/sbin/udevadm settle
+	fi
+	echo "done."
+}
+
+# When modifying this script, do not forget that between the time that
+# the new /dev has been mounted and udevtrigger has been run there will be
+# no /dev/null. This also means that you cannot use the "&" shell command.
+
+	start_bootchart
+
+if in_flash_mode; then
+	start_softupd
+	reboot
+fi
+
+# here only in non-flash mode
+
+# No need to start udev before softupd anymore
+
+	start_udev
+	make_nodes
+	load_extra_modules
+
+mount_devpts
+mount -n -o size=64M,nosuid,nodev,noatime -t tmpfs tmpfs /dev/shm
+
+# mount_mmc "/dev/mmcblk0"
+
+/sbin/hwclock -s || true
+ 
+watchdog -t 10 /dev/twl4030_wdt
+watchdog -t 10 /dev/watchdog
+modprobe dm_mod
+modprobe dm_loop
+
+#LED part taken from a post on talk.maemo.org by Mentalist Traceur. Thx
+modprobe leds-lp5523
+for i in 1 2 3 4 5 6; do
+    echo 25 > /sys/class/leds/lp5523\:kb$i/brightness
+done
+
+loadkmap < /nokia-n900.kmap
+
+CONT=0
+while [ "$CONT" -ne 1  ] ; do
+cryptsetup luksOpen /dev/mmcblk0p2 home_luks
+if [ "$?" -eq 0 ] || [ -b /dev/mapper/home_luks ] ; then
+CONT=1
+fi
+done
+
+echo "Press any key to enable shell"
+read -n 1 -t 2 shellmode
+if [ -n "$shellmode"  ] ; then
+sh
+fi
+
+killall watchdog
+
+
+# cannot collect product data if we are under SDK
+# it should not be run there, but explicit check is better
+OPI=`which osso-product-info`
+
+if [ x$OPI != x ]; then
+
+	# Make sure /etc/hostname and /etc/hosts exist and are not empty. They do not
+	# exist if this is the very first boot, and they may be empty if power cut
+	# happended before the contents has reached the media.
+	if [ ! -f /etc/hostname  -o ! -s /etc/hostname -o ! -f /etc/hosts -o ! -s /etc/hosts ]; then
+		hostname="`$OPI -qOSSO_PRODUCT_SHORT_NAME | sed 's/ /-/g'`"
+		echo $hostname > /etc/hostname
+		echo "127.0.0.1 $hostname localhost" > /etc/hosts
+		chmod 644 /etc/hosts
+	fi
+
+	# Similarly, make sure /etc/issue and /etc/issue.net are fine
+	if [ ! -f /etc/issue -o ! -s /etc/issue -o ! -f /etc/issue.net -o ! -s /etc/issue.net -o -f /home/user/first-boot-flag ]; then
+		full_name=`$OPI -qOSSO_PRODUCT_RELEASE_FULL_NAME`
+		echo "$full_name \n \l" > /etc/issue
+		echo "" >> /etc/issue
+		echo "$full_name %h" > /etc/issue.net
+	fi
+fi
+
+# Note, normally we would have to sync the FS to make sure the files have
+# reached the media. But because the files are small, they would be either
+# empty or non-existing in case of an unclean reboot, and we handle both
+# cases.
+
+hostname -F /etc/hostname
+ifup lo &
+
+#echo /sbin/udevsend > /proc/sys/kernel/hotplug
+
+#: > /var/run/utmp
+#chmod 664 /var/run/utmp
+#chgrp utmp /var/run/utmp
+
+rm -f /etc/mtab
+cat /proc/mounts > /etc/mtab
+
+echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects
+echo 0 > /proc/sys/net/ipv4/conf/default/accept_redirects
+echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter
+echo 1 > /proc/sys/net/ipv4/conf/default/rp_filter
+echo 1 > /proc/sys/net/ipv4/icmp_ignore_bogus_error_responses
+echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
+echo "49152 65535" > /proc/sys/net/ipv4/ip_local_port_range
+echo 6000 > /sys/class/bluetooth/hci0/idle_timeout
+
+# adjust other kernel parameters to minimize memory consumption
+# and optimize IO pressure
+echo 16 > /proc/sys/kernel/pty/max
+echo 1024 > /proc/sys/kernel/threads-max
+echo 8192 > /proc/sys/fs/file-max
+echo 100 > /proc/sys/vm/swappiness
+echo 5 > /proc/sys/vm/page-cluster
+echo 500 > /proc/sys/vm/dirty_expire_centisecs
+echo 65536 > /proc/sys/net/core/rmem_default
+echo 16384 > /proc/sys/net/core/wmem_default
+echo 20 > /proc/sys/net/unix/max_dgram_qlen
+
+# Finalize SSU in case it has been interrupted by power failure
+if test -x /usr/libexec/ham-rescue.sh; then
+  /usr/libexec/ham-rescue.sh
+fi
+
+# Disable sysrq to avoid accidental console-carbage resets.
+echo 0 > /proc/sys/kernel/sysrq
+
+echo "/what/me/worry" > /proc/sys/kernel/core_pattern
+echo 1 > /proc/sys/kernel/panic
+echo 1 > /proc/sys/kernel/panic_on_oops
+
+exit 0

rcS-late

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+description "late rcS actions"
+
+start on started hal
+stop on stopping hal
+
+console none
+
+script
+	#Mounts an encrypted home by bypassing /etc/fstab.
+	#Encrypted swap.
+
+
+
+    #mount /home; fix ext3 and retry mounting if 1st attempt fails
+    mount_home ()
+    {
+    
+    /bin/mount /dev/mapper/home_luks /home -t ext3 -o rw,noatime,errors=continue,commit=1,data=writeback && grep -q "/home ext3 rw" /proc/mounts
+    if [ $? -eq 0 ]
+    then
+      return 0
+    else
+      grep -q "/home ext3 ro" /proc/mounts
+      if [ $? -eq 0 ]
+      then
+        umount /home
+      fi
+      HOME_DEV=`grep "/home ext3" /etc/fstab | cut -d' ' -f1`
+     #fsck.ext3 -y $HOME_DEV >> /var/lib/fsck_ext3_home.log 2>&1
+      sync
+      /bin/mount /dev/mapper/home_luks /home -t ext3 -o rw,noatime,errors=continue,commit=1,data=writeback && grep -q "/home ext3 rw" /proc/mounts
+      return $?
+    fi
+    }
+
+
+
+    
+    ACT_DEAD=0
+    HOME_MOUNTED=0
+    
+    #check act_dead
+    if [ -e /tmp/ACT_DEAD ]; then
+      ACT_DEAD=1
+    fi
+
+    # Generate fstab and mount /home
+    . /etc/default/mount-opts
+
+
+    fstab=/etc/fstab
+    tmp_fstab=/tmp/fstab
+	
+    sfdisk -l /dev/mmcblk0 | /bin/busybox awk \
+    	-v home_opts="$home_opts" -v fat_opts="$fat_opts" \
+	-f /usr/lib/genfstab.awk > $tmp_fstab
+
+    cmp -s $tmp_fstab $fstab || cp $tmp_fstab $fstab
+    rm -f $tmp_fstab
+
+
+    if [ $ACT_DEAD -eq 0 ]; then
+      modprobe dm_crypt
+      modprobe dm_mod
+      /sbin/cryptsetup -d /dev/urandom create swapenc /dev/mmcblk0p3 
+      /sbin/mkswap /dev/mapper/swapenc
+      /sbin/swapon /dev/mapper/swapenc
+      # Setup lowmem module
+      echo 32768  > /proc/sys/vm/lowmem_deny_watermark_pages
+      echo 98304  > /proc/sys/vm/lowmem_notify_high_pages
+      echo 131072 > /proc/sys/vm/lowmem_notify_low_pages
+      echo 1024   > /proc/sys/vm/lowmem_nr_decay_pages
+      # Exclude some UIDs from memory allocation denial.
+      # 30000 is messagebus, 30001 could be used by Matchbox
+      echo "30000 30001 30002 30003" > /proc/sys/vm/lowmem_allowed_uids
+    fi
+
+    mount_home && HOME_MOUNTED=1
+   
+    # If failed to mount /home and system has been already optified - reboot 
+    if [ $HOME_MOUNTED -eq 0 ]
+    then
+      if [ -e /var/lib/maemo-optify-firstboot-do-not-clean-home-opt ]; then
+        telinit 6
+      fi
+    else
+      [ ! -d /home/opt ] && mkdir /home/opt
+      [ ! -d /opt ] && mkdir /opt
+    fi   
+ 
+    if [ $ACT_DEAD -eq 0 ]
+    then
+      if [ $HOME_MOUNTED -eq 1 ]
+      then
+        if [ -x /usr/sbin/maemo-optify-firstboot.sh ]; then
+            . /usr/sbin/maemo-optify-firstboot.sh
+        fi
+      fi
+    fi    
+    
+    /bin/mount /opt || echo "Failed to mount(bind) /opt."
+      
+    if [ $ACT_DEAD -eq 0 ]
+    then
+      if [ $HOME_MOUNTED -eq 1 ]
+      then
+        if [ -x /usr/sbin/maemo-optify-auto-opt.sh ]; then
+            . /usr/sbin/maemo-optify-auto-opt.sh
+        fi
+      fi
+      
+      if [ -d /home/preinstalled -a -d /home/user ]
+      then 
+        rm -rf /home/user
+      fi     
+    
+      if [ ! -d /home/user ]
+      then
+        if [ -d /home/preinstalled ]
+        then
+          mv /home/preinstalled /home/user
+        else
+          mkdir /home/user
+        fi
+        cd /etc/skel
+        cp -a . /home/user
+        chown -R user:users /home/user
+        sync
+      fi
+    fi
+
+    if [ ! -d /home/user ]
+    then
+      mkdir /home/user
+      chown user:users /home/user
+      sync
+    fi
+
+    # We can safely continue booting now.
+    initctl emit MOUNTS_OK
+
+    # Adjust flushing of memory card buffers
+    echo 40 > /proc/sys/vm/dirty_ratio
+    echo 10 > /proc/sys/vm/dirty_background_ratio
+
+    # Initialize PRNG pool with the HW RNG. Slow, but that's ok.
+    URANDOM_POOLSZ=512
+    if [ -e /dev/hwrng ]; then
+      echo "Seeding entropy pool"
+      dd if=/dev/hwrng of=/dev/urandom bs=$URANDOM_POOLSZ count=1
+    fi
+
+    # Data for the panic info driver
+    mount -t debugfs nodev /sys/kernel/debug
+    modprobe panic_info_buff
+    sleep 1
+    osso-product-info > /sys/kernel/debug/panic_info_buff
+end script
+
+normal exit 0