HD2 SD/MALDR System.ext2 Auto Builder V1.0

---

1. purpose just speeding up the system.ext2 file making.I'm lazy....
2. use it in Ubuntu O.S. with root account
3. decompress this auto builder and put it in folder /root or else place
4. put the CWM ROM's zip file in the folder "cwm_rom" and put the kernel modules *.ko files in the folder " kernel"
5.open terminal, cd the folder of this scripts, and execute it.
bash systemext2builder.sh then it will auto build the system.ext2 for SD ROM.
here is a demo how to use http://www.mediafire.com/?3lj5iuiv6ddcppi or http://dl.dbank.com/c0xn7ck608

#!/bin/bash
####################################################
# HD2 Android SD/MAGLDR ROM system.ext2 Auto builder.
#        version 1.0    
#   By 3dak on 2011-04-29
##################################################

# to get current script's path

script_dir=`dirname $(readlink -f $0)`
extract_dir=$script_dir/extract
mount_dir=/mnt/system

#check the $mount_dir folder and ensure it is unmount and it's a fresh empty folder
if [ -d "$mount_dir" ] ; then
 umount $mount_dir
 rm -rf $mount_dir
 mkdir $mount_dir
else
 mkdir $mount_dir
fi

#to ensure there is no old extract folder or system.ext2
if [ -d "$extract_dir" ] ; then
 rm -rf $extract_dir
fi

if [ -f $script_dir/system.ext2 ]; then
   rm -f $script_dir/system.ext2
fi


#to get the main file name of the latest MIUI CWM ROM (*.zip) and decompress it!
# Please put the latest MIUI CWM ROM in the folder $script_dir/cwm_rom

build=`ls $script_dir/cwm_rom/*.zip | tail -1`
unzip $build -d $extract_dir/

#now change the cwm_rom kernel to SD version's kernel
#Please put all kernel modules *.ko files in the folder  $script_dir/kernel
rm  $extract_dir/system/lib/modules/*.ko
cp  $script_dir/kernel/*.ko  $extract_dir/system/lib/modules/


# Now create a fresh empty 250MB system.ext2 image file and format it.
dd if=/dev/zero of=$script_dir/system.ext2 bs=1048576 count=250
mke2fs -F $script_dir/system.ext2

#Now mount this fresh system.ext2


mount -o loop $script_dir/system.ext2 $mount_dir
#Now copy the CWM ROM's system folder to the $mount_dir (/mnt/system )
cp -ar $extract_dir/system/* $mount_dir/


############################################################
# Read CWM ROM's updater-script
# Createa Symlinks and set permissions of folders and files
#############################################################

updater_script=$extract_dir/META-INF/com/google/android/updater-script

# create symbolic links

SYMLINKS=`grep "symlink" $updater_script | cut -d'"' -f2`
for SYMLINK in $SYMLINKS; do
    echo "Creating symolic links for $SYMLINK..."
     if [ "$SYMLINK" = "busybox" -o "$SYMLINK" = "iwmulticall" ]; then
         LINK_DIR='/system/xbin/'
     elif [ "$SYMLINK" = "toolbox" ]; then
         LINK_DIR='/system/bin/'
     fi
     MATCHES=`awk '/symlink\(\"'"$SYMLINK"'/,/\);/ {print}' $updater_script | \
              sed "s/symlink(\"$SYMLINK\",//g" | \
              sed 's/);//g' | \
              sed 's/"//g' | \
              sed 'N;s/\n//g' | \
              sed 's/ //g' | \
              sed 's/,/ /g' | \
              sed "s@$LINK_DIR@@g"`
     cd /mnt/$LINK_DIR
     for LINK in $MATCHES; do
         echo -n "Linking $SYMLINK to $LINK... "
         ln -sf $SYMLINK $LINK && echo "done"
     done
 done
# set permissions
 grep "set_perm_recursive" $updater_script | grep -v "tmp" | grep -v "recovery" | \
 while read LINE; do
     PERM=`echo $LINE | sed 's/set_perm_recursive(//g' | sed 's/);//g' | sed 's/"//g' | sed 's/ //g'`
     USER=`echo $PERM | cut -d',' -f1`;
     GROUP=`echo $PERM | cut -d',' -f2`;
     DIR_PERM=`echo $PERM | cut -d',' -f3`;
     FILE_PERM=`echo $PERM | cut -d',' -f4`;
     TARGET=`echo $PERM | cut -d',' -f5`;
     echo -n "Setting permissions for $TARGET... "
     chown -R $USER:$GROUP /mnt$TARGET
     chmod -R $DIR_PERM /mnt$TARGET
     find /mnt$TARGET -type f -exec chmod $FILE_PERM {} \; && echo "done"
 done
 grep "set_perm" $updater_script | grep -v "recursive" | grep -v "tmp" | grep -v "recovery" | \
 while read LINE; do
     PERM=`echo $LINE | sed 's/set_perm(//g' | sed 's/);//g' | sed 's/"//g' | sed 's/ //g'`
     USER=`echo $PERM | cut -d',' -f1`;
     GROUP=`echo $PERM | cut -d',' -f2`;
     FILE_PERM=`echo $PERM | cut -d',' -f3`;
     TARGET=`echo $PERM | cut -d',' -f4`;
     echo -n "Setting permissions for $TARGET... "
     chown $USER:$GROUP /mnt$TARGET
     chmod $FILE_PERM /mnt$TARGET && echo "done"
 done

#now unmount system.ext2
umount $mount_dir

#cleanup
rm -rf $extract_dir

echo " All Done!"
# EOF by 3dak :) 2011-04-29

if you wanna a system.img file too for DAF ROM, add the follwoing line before this line #now unmount system.ext2

mkyaffs2image $mount_dir  $script_dir/system.img

tools.zip is some tools for rom making. put them in the foloer
/usr/local/bin

Wonderful !
Would love to see such an application for Windows OS ....

that's very cool! now we can make new sd builds by ourselves
thanks 3dak!

Originally Posted by 3dak

1. purpose just speeding up the system.ext2 file making.I'm lazy....

Man this way you take away all the fun!!

Joking... I'm lazy, too!

great tool, work great to build miui 1.4.29
Thanks 3dak

It's so bad that I don't use Ubuntu OS!
I am looking for some tool like this for a long time but running in Windows OS!

Originally Posted by kimquypticc

It's so bad that I don't use Ubuntu OS!
I am looking for some tool like this for a long time but running in Windows OS!

Use ubuntu.
Just make a live cd or live flash drive. It's worth it

Sent from my HD2 using XDA app

Originally Posted by kimquypticc

It's so bad that I don't use Ubuntu OS!
I am looking for some tool like this for a long time but running in Windows OS!

Or use it in a VirtualBox.
It's rather easy
peter

this is just Awesome!

Awesome, I will test this soon!