= Modify Internal SDcard storage to External SDcard =

The Samsung Galaxy XCover2 (S7710) has only roughly 500MB left on emulated internal storage which is not enough these days if you like to install a lot of applications. There are many tricks around to move data/cache/applications to the external SD card, but all of them has it quirks. Since large SDcard these days are fast and cheap enough having I think this could be done better, by simply discarding the internal /data storage and use an sdcard partition instead.

= Requirements =
* Linux envirionment
* split-bootimg.pl found ar [[http://www.enck.org/tools.html]]



What I will do is modify the {{{/etc/fstab.samsungskomer}}} to change the mount of the ext4 {{{/data}}} of the internal location {{{/dev/block/mmcblk0p25}}} to the second partition of the external SDCard {{{/dev/block/mmcblk1p2}}}.


== Compile Android Tools ==

 $ git clone https://android.googlesource.com/platform/system/core
 $ cd core
 $ git checkout android-4.2.1_r1

 $ cd libmincrypt
 $ gcc -c *.c -I../include
 $ ar rcs libmincrypt.a *.o
 $ cd ../mkbootimg
 $ gcc mkbootimg.c -o mkbootimg -I../include ../libmincrypt/libmincrypt.a

 $ cd ../mkbootfs
 $ gcc mkbootfs.c  -o mkbootfs -I../include


 $ cd ../libsparse
 $ gcc -o simg2img -Iinclude -lz simg2img.c sparse_crc32.c backed_block.c output_file.c sparse.c sparse_err.c sparse_read.c


= References = 
* Heimdall 1.3.1 is NOT working, make sure to use a higher version.
* Disable power on by home key: [[http://forum.xda-developers.com/showthread.php?t=2204889&page=15]]
* Rooting guide hints (windows only): [[http://forum.xda-developers.com/showpost.php?p=40232503&postcount=45]]
* Compile simg2img and make_ext4fs [[http://muzso.hu/2012/08/10/how-to-pack-and-unpack-system.img-and-userdata.img-from-an-android-factory-image]]