Dual-Boot: SD Card & Internal ROM by Modifying Initramfs

HI there! Just wanna share about things I've done some time ago..

Background... :fingers-crossed:
I'm interested with ROM development & testing, but.. Ace 2 is my only primary phone which I really need for school things, poking friends *woah* and.. etc. Actually, I can make a CWM backup, flash the ROM and restore the backup after testing. But... seriously! It takes quite lot of time and... yeah.. since I'm testing ROM, I'll keep flashing & reflashing my phone and...

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