Install new CWM v5.0.2.7 on your galaxy series (High Risk Tutorial)

This tutorial is extension from tutorial CWM v5.0.2.6 .
i thing you all know how to do / install it, i will explain it again :
1. download cwm v5.0.2.7
2. place that file on your sdcard, recommended at root
3. boot into your recovery mode (using home+power button)
4. select install zip from sdcard
5. point to cwm v5.0.2.7 file
6. just wait until installation finish
7. reboot it and go to recovery mode
8. finish

after 2 days trying and error, now i can take a conclusion :
1. never use cwm for nandroid backup, it will cause your phone boot loop when you try to restore it.
2. just use cwm for flash your rom, run perfectly
3. always run clear delvik, clear cache, wipe data, etc after flashing your rom
4. mount system, mount data, mount cache must be do manually

So i think this tutorial can you use for flashing your ROM, upgrade it from android 2.3.6 to 2.3.7(CM7)
hope this can help you,

one day if i can do smoothly backup and restore using nandroid i will share you the way, for now use 3rd party software for backup and restore.