[Samsung Galaxy Core.] StratOS_HTC:
UPDATE :

CWM recovery : http://xdaforums.com/galaxy-core/development/guide-how-to-install-cwm-samsung-galaxy-t2990852

TWRP: http://xdaforums.com/galaxy-core/development/samsung-galaxy-core-2-sm-g355h-m-t2998094

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Just wanted to get extra help on this one ...

1. st find and extract image (recovery) on SM Galaxy core 2 SM-G355HN by adb :

C:\ADB\adt-bundle-windows-x86_64-20140702\sdk\platform-tools>adb shell
shell@kanas3gnfc:/ $ ls -l /dev/block/platform/*/by-name/
ls -l /dev/block/platform/*/by-name/
lrwxrwxrwx root root 2014-11-10 14:25 CSC -> /dev/block/mmcblk0p19
lrwxrwxrwx root root 2014-11-10 14:25 FIXNV1 -> /dev/block/mmcblk0p1
lrwxrwxrwx root root 2014-11-10 14:25 FIXNV2 -> /dev/block/mmcblk0p2
lrwxrwxrwx root root 2014-11-10 14:25 FOTA_SIG -> /dev/block/mmcblk0p9
lrwxrwxrwx root root 2014-11-10 14:25 HIDDEN -> /dev/block/mmcblk0p21
lrwxrwxrwx root root 2014-11-10 14:25 KERNEL -> /dev/block/mmcblk0p17
lrwxrwxrwx root root 2014-11-10 14:25 MODEM -> /dev/block/mmcblk0p7
lrwxrwxrwx root root 2014-11-10 14:25 MODEM_BACKUP -> /dev/block/mmcblk0p8
lrwxrwxrwx root root 2014-11-10 14:25 OTA -> /dev/block/mmcblk0p10
lrwxrwxrwx root root 2014-11-10 14:25 Odin_reserved -> /dev/block/mmcblk0p16
lrwxrwxrwx root root 2014-11-10 14:25 PARAM -> /dev/block/mmcblk0p13
[COLOR="Red"][B]lrwxrwxrwx root root 2014-11-10 14:25 RECOVERY -> /dev/block/mmcblk0p18[/B][/COLOR]
lrwxrwxrwx root root 2014-11-10 14:25 RUNTIMENV1 -> /dev/block/mmcblk0p11
lrwxrwxrwx root root 2014-11-10 14:25 RUNTIMENV2 -> /dev/block/mmcblk0p12
lrwxrwxrwx root root 2014-11-10 14:25 SBL1 -> /dev/block/mmcblk0p3
lrwxrwxrwx root root 2014-11-10 14:25 SBL2 -> /dev/block/mmcblk0p4
lrwxrwxrwx root root 2014-11-10 14:25 WDSP -> /dev/block/mmcblk0p5
lrwxrwxrwx root root 2014-11-10 14:25 WDSP_BACKUP -> /dev/block/mmcblk0p6
lrwxrwxrwx root root 2014-11-10 14:25 efs -> /dev/block/mmcblk0p14
lrwxrwxrwx root root 2014-11-10 14:25 fixnv1 -> /dev/block/platform/sprd-sdhci.3/by-name/FIXNV2
lrwxrwxrwx root root 2014-11-10 14:25 fixnv2 -> /dev/block/platform/sprd-sdhci.3/by-name/FIXNV1
lrwxrwxrwx root root 2014-11-10 14:25 prodnv -> /dev/block/mmcblk0p15
lrwxrwxrwx root root 2014-11-10 14:25 runtimenv1 -> /dev/block/platform/sprd-sdhci.3/by-name/RUNTIMENV1
lrwxrwxrwx root root 2014-11-10 14:25 runtimenv2 -> /dev/block/platform/sprd-sdhci.3/by-name/RUNTIMENV2
lrwxrwxrwx root root 2014-11-10 14:25 system -> /dev/block/mmcblk0p20
lrwxrwxrwx root root 2014-11-10 14:25 userdata -> /dev/block/mmcblk0p22
shell@kanas3gnfc:/ $ su
root@kanas3gnfc:/ # cat /dev/block/mmcblk0p18>/storage/extSdCard/recovery.img
cat /dev/block/mmcblk0p18>/storage/extSdCard/recovery.img
root@kanas3gnfc:/ # cd storage
cd storage
root@kanas3gnfc:/storage # cd extSdCard
cd extSdCard
root@kanas3gnfc:/storage/extSdCard # unmkbootimg -i recovery.img
unmkbootimg -i recovery.img
kernel written to 'kernel' (12071152 bytes)
ramdisk written to 'ramdisk.cpio.gz' (1612341 bytes)

To rebuild this boot image, you can use the command:
mkbootimg --base 0 --pagesize 2048 --kernel_offset 0x00008000 --ramdisk_offset
0x01000000 --second_offset 0x00f00000 --tags_offset 0x00000100 --cmdline 'conso
le=ttyS1,115200n8' --kernel kernel --ramdisk ramdisk.cpio.gz -o recovery.img
root@kanas3gnfc:/storage/extSdCard #

Ok, we found the recovery partition in /dev/block/mmcblk0p18 we copy the block to SDCard, unpack it with 'unmkbootimg' (tool for unpacking), we got the 'kernel' file and 'ramdisk.cpio.gz' file :

Unpack and cpio alined :

root@kanas3gnfc:/storage/extSdCard # mkdir ramdisk
mkdir ramdisk
root@kanas3gnfc:/storage/extSdCard # cd ramdisk
cd ramdisk
root@kanas3gnfc:/storage/extSdCard/ramdisk # gunzip -c ../ramdisk.cpio.gz | cpio -i
isk.cpio.gz | cpio -i
cpio: can't create symlink from sbin/ueventd to ../init: Function not implemented
cpio: can't create symlink from sbin/watchdogd to ../init: Function not implemented
4252 blocks
root@kanas3gnfc:/storage/extSdCard/ramdisk #
C:\ADB\adt-bundle-windows-x86_64-20140702\sdk\platform-tools>

Ok, forget about the symlink errors in this try,it's vfat extSdCard related,everything will be fine in internal procedure.

If we look more carefully in the ramdisk ..

init.rc,default.prop,recovery.fstab in /etc/ and the most importand recovery.do in /res/ and recovery in /sbin/

Start making and modding things he,he ... it's the start for now ...

If any1 have the linux machine and sources installed I could help him to make a CWM recovery for this phone.

Here is the guide (CWM) :

http://xdaforums.com/showthread.php?t=1866545

Make backup of your current recovery (build) or you will have to flash the whole thing again with odin ...

Looking for a modded recovery with full (nand) backup, that would be greatest !