[How to] Dual Boot on the Samsung Galaxy S2 I9100

It is well known that a computer can have more than one Operating System. Similarly, some Android devices also support 2 Operating Systems simultaneously and Samsung Galaxy S2 I9100 is one of those rare devices. This feature is known as Dual Boot.┬áThis is achieved by sharing the kernel and using a hidden partition in dev/block to store the 2nd ROM’s /system and the /sdcard (Internal storage) to store /data and /cache inside a hidden folder (/sdcard/.secondrom).


Continue reading