utils/ypr0tools/patch-firmware.sh

   1 #!/bin/sh
   2
   3
   4 ######################################################################
   5 #             __________               __   ___.
   6 #   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   7 #   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   8 #   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   9 #   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
  10 #                     \/            \/     \/    \/            \/
  11 #
  12 #   * Script to patch an unpacked Samsung YP-R0 firmware file */
  13 #   Copyright (C) 2011 Thomas Martitz
  14 ######################################################################
  15 # bail out early
  16 set -e
  17
  18 if [ $# -lt 1 ] || [ $# -gt 2 ]; then
  19     echo "Usage: $0 <files path> [path to unpacked rom]"
  20     echo "\t<files path> is expected to have a rootfs layout and to contain"
  21     echo "\tonly the files to overwrite (plain cp -r is used)"
  22     exit 1
  23 fi
  24
  25 FILES=${1%/}
  26 FILES=${FILES:-"/"}
  27 DIR=${2:-"."}
  28 DIR=${DIR%/}
  29 ROOTFS=$DIR/rootfs
  30 CRAMFS=$DIR/cramfs-fsl.rom
  31
  32 # sanity checks
  33
  34 # this needs to be run as root!
  35 if [ $(whoami) != "root" ]
  36 then
  37   echo "This needs to be run as root"
  38   exit 1
  39 fi
  40
  41 if [ ! -e $1 ] || [ ! -e $2 ]; then
  42     echo "$1 or $2 does not exist"
  43     exit 1
  44 fi
  45
  46 if [ -z $ROOTFS ] || [ -z $FILES ]; then
  47     echo "Invalid input directories"
  48     exit 1
  49 fi
  50
  51 if [ ! -e $CRAMFS ]; then
  52     echo "Cramfs image not found (did you extract the firmware?)"
  53     exit 1
  54 fi
  55
  56 echo "Extracting cramfs image"
  57
  58 [ ! -e $ROOTFS ] || rmdir -p $ROOTFS
  59 cramfs-1.1/cramfsck -x $ROOTFS $CRAMFS
  60
  61 echo "Patching rootfs"
  62 echo "cp -r $FILES/* $ROOTFS/"
  63 cp -r $FILES/.rockbox $ROOTFS/
  64 cp -r $FILES/* $ROOTFS/
  65
  66 echo "Packing new cramfs image"
  67 cramfs-1.1/mkcramfs $ROOTFS $CRAMFS