[FBOOT][MULTIROM] FOTA -Noob edition - Android Development on Bada

I worked a bit on FOTA bootloader, and i'd like to share some of my work.
Few words about Fota in general
I think lot of people here don't understand fully how Fota work, and this may prevent a lot of questions, please read it.
We use Fota in Badadroid project as a bootloader, it's the piece of code loading modem and android kernel in RAM, and starting android kernel.
Fota decide what key combination does, which system is to be launched if no key are pressed, and where kernel file is searched.
Fota doesn't care if a kernel is Nand or SD or Loop. It just search for a file with a certain name, load it and launch the execution of its code.
This Fota is compatible with ALL roms and ALL versions (nand, SD, loop).
About keys : power key isn't important for Fota, the only function power key have is to power on the device. Once device is powered on (you can use power key but also plug charger or use reboot function), fota will check for other keys. So if i write "Recovery mode : home key", you'll have to press home key and then manage to power on the device, it won't boot if you just press home key.
About this Fota
This Fota is able to load two different kernel. It can be used to load two rom (one Nand and one SD, one Loop and one SD) or if you have a "test" kernel.
If you have only one rom or one kernel, no problem, it will work the same, all the stuff related to second kernel won't work, that's all.
This Fota doesn't allow two Nand rom or two SD rom.
This Fota provide a default "Silent boot" displaying default Bada bootscreen (no more ugly ASCII), however boot is slow so it will be displayed for maybe 15 seconds. If there is an error with kernel, ugly ASCII will appear and tell you there is something wrong.
This Fota also provide an "interactive" mode (or Noob mode). If you press any keys during boot (home, call or volume), it will boot in interactive mode. It's simple and you'll understand fast how it work. Control are vol + and vol - and home key to select.
It also support usual key combination, if you press keys to boot recovery, and when white screen appear you stop pressing, it will boot "interactive mode" and after few seconds boot recovery IF no keys are pressed. If you press sth at this moment, interactive mode will be active.
Test it, you'll understand.
This Fota also boot faster in recovery (no Modem init, who need modem in recovery ?)
However, battery reading won't work anymore in recovery because of that, so don't spend hours in recovery mode.
README
First kernel : boot.img on SDcard
Second kernel : boot_2.img on SDcard
Boot 1st kernel : default
Boot recovery 1st kernel : vol up
Boot 2nd kernel : home
Boot recovery 2nd kernel : vol up + home
Boot bada : call
Yeah, you read well, kernel must be named boot.img and not zImage.
If your rom came with a file named zImage, just rename it boot.img it will work the same. I could have chosen to load a file named MyLittleKernel. Name doesn't matter, only file content is important.
And all the same, rename the second kernel (for your secondary rom, test kernel...) boot_2.img.
All the kernels must be placed on SDCARD
REQUIREMENTS
Bada 2.0
Android Bootfiles (if you have an android rom on your phone, you have it, else, see in badadroid thread to download it.
Bugs
Bada boot doesn't work in interactive mode, it's stuck after Bada bootanimation, maybe someone know why.
Just boot with call key pressed to boot bada.
Please report if there is any other bugs.
Thanks
Big thanks to all Fota contributors, Rebellos, Mijoma, Tigrouzen, ihavenick, Volk204 and all the others i forgot
Sources
My github here, see branch sd.
Downloads
Fixed dual boot broken by little mistake (20/07/2014) :
Mega (s8500 & s8530)
Alternative links :Google Drive
Just flash it with Multiloader

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WoW.. Awesome BenzoX.. Congrats for ur work.. Thank u so much..
Regards,
Abhijeet....

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Any other links other than mega..??

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abhijeet1331 said:
Any other links other than mega..??
Click to expand...
Click to collapse
Updated (Google Drive)

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BenzoX said:
Updated (Google Drive)
Click to expand...
Click to collapse
Oh thanks man..

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Duude.
Bada+ Android LOOP + Android on SD - It work
Thaaankss

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bada is not booting ..
is it possible to boot only bada by using this fota in s8530 ??
when i try to boot bada using press call button ...it won't boot
if it's work then i will boot also android ....but i need bada.
any suggestion...plz
thanks in advanced..

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mishail said:
is it possible to boot only bada by using this fota in s8530 ??
when i try to boot bada using press call button ...it won't boot
if it's work then i will boot also android ....but i need bada.
any suggestion...plz
thanks in advanced..
Click to expand...
Click to collapse
For me bada boot work well if i press call key. Not from menu (i have s8530 too).

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bada not boot proper
BenzoX said:
For me bada boot work well if i press call key. Not from menu (i have s8530 too).
Click to expand...
Click to collapse
Hi , Benzox
when i boot bada , screen display horrible line with different color (like my bada is crashed).
is it booting normal ??. what should i do. I am using CFW 10.1 Turko
thanks for giving answer ..

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mishail said:
Hi , Benzox
when i boot bada , screen display horrible line with different color (like my bada is crashed).
it's booting normal. what should i do.
thanks for giving answer ..
Click to expand...
Click to collapse
I think that's because you have/had a Nand rom installed. Just flash bada (not Fota file) and it will work (you'll loose your nand rom thought)

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bada is not booting.
BenzoX said:
I think that's because you have/had a Nand rom installed. Just flash bada (not Fota file) and it will work (you'll loose your nand rom thought)
Click to expand...
Click to collapse
Hi Benzox ,
When u write about this fota like " It can be used to load two rom (one Nand and one SD, one Loop and one SD)" .
So i thought i boot two OS ( bada & nand ) while flash my bada 2.0 with this new fota file.
is it not possible to load Nand & Bada alternative ?
Thanks in advanced.

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mishail said:
Hi Benzox ,
When u write about this fota like " It can be used to load two rom (one Nand and one SD, one Loop and one SD)" .
So i thought i boot two OS ( bada & nand ) while flash my bada 2.0 with this new fota file.
is it not possible to load Nand & Bada alternative ?
Thanks in advanced.
Click to expand...
Click to collapse
Nand format and install on nand memory, bada is installed on nand memory...
You need Loop rom (such as badadroid) if you want both to be on internal. memory.
I can allow two kernel but i don't know how to make partitions and storage space appear from nowhere

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Questions ...
I want to install two android roms NAND and SD
What do I install first nand ram or rom SD?
The reason for my question is that when a rom on the SD card installed to do partition SD and lost all the contents of the SD.
If installation nand rom first
And after install the second rom in sd
Does the second rom could not delete the first installation nand?
I want to install nand rom and sd rom but not in what order I have to do
I do not want a rom overwrite the other rom because the two are installed in the SD

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tofifo said:
Questions ...
I want to install two android roms NAND and SD
What do I install first nand ram or rom SD?
The reason for my question is that when a rom on the SD card installed to do partition SD and lost all the contents of the SD.
If installation nand rom first
And after install the second rom in sd
Does the second rom could not delete the first installation nand?
I want to install nand rom and sd rom but not in what order I have to do
I do not want a rom overwrite the other rom because the two are installed in the SD
Click to expand...
Click to collapse
Nand rom partition Nand (and delete it's content)
SD rom partition SDcard (and delete its content)
A nand rom will never overwrite a SD rom and vice versa, whatever fota you use.
Order doesn't matter.
Of course if you do Nand rom first you'll have to put its kernel on SD again.
You can't install two rom on SD, nand rom is installed on nand (internal memory) and sd rom is installed on SD.
Only kernel is on SD for both rom.

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@BenzoX i forgot your codes but if you want to boot from interactive mode to bada mode i remember you must turn on mmu and disable modem (its opens again )

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ihavenick said:
@BenzoX i forgot your codes but if you want to boot from interactive mode to bada mode i remember you must turn on mmu and disable modem (its opens again )
Click to expand...
Click to collapse
But in my code Modem init and mmu is called only after the "return rm_BL3 (which is the signal to start bada if i understood well)
Only thing made from the start of Fota.c are
Code:
int mmuctrl = MemMMUCacheEnable(gMMUL1PageTable, 1);
disp_FOTA_Init();
__PfsNandInit();
__PfsMassInit();
MemoryCardMount();
Rest is only displaying and setting some variable used only in Fota.c

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I must be doing something wrong
If I knew cuel is my error.... not would have error haha
I installed a rom sd using the SD kernel.
I installed a rom nand using the nand kernel.
But the fota of menu always starts the same rom both when select kernel 1 o when select kernel 2
I have noticed one thing, we make a sd installation or nand installation the folder Android always appears on the sd card.
I see it almost impossible to install two android roms even if one is nand and the other sd because the folder Android always overwrite rom to another rom

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tofifo said:
I must be doing something wrong
If I knew cuel is my error.... not would have error haha
I installed a rom sd using the SD kernel.
I installed a rom nand using the nand kernel.
But the fota of menu always starts the same rom both when select kernel 1 o when select kernel 2
I have noticed one thing, we make a sd installation or nand installation the folder Android always appears on the sd card.
I see it almost impossible to install two android roms even if one is nand and the other sd because the folder Android always overwrite rom to another rom
Click to expand...
Click to collapse
If it start the same rom, it's a kernel for same type (SD/Nand)
Take your kernel for SD and name it boot.img, take your kernel for Nand and name it boot_2.img (or vice versa). Put both on sdcard.
I'll test again my Fota but i'm almost sure it work (i did small modification and haven't tested both boot, but it should work)
This folder is not "essential" and distinctive to both rom.
Only issue may be if you have different version of the same apps on both rom, or if you use same apps on both rom. In this case (and only IF apps data are stored on SD, which is a minority), thing may be a bit confused.

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nice.. good job.. this is what im waiting for.. something that will replace ugly ASCII on boot.. got some questions though,.
i have bada installed with sd rom and sd kernel installed on a partitioned sd card.. so my questions are..
1) can i install 3 OS?.. 1 bada(call) on nand, 1 android sd (end) and 1 android nand/loop (middle) on nand again?..
2) so if i put ALL kernels in sdcard by just renaming it.. what about the 2 roms, both in sd card as well?.. how will it know which rom the kernel will boot if same on sd card?
3) how long does the new boot take?.. can u show some screenshot or video?
4) what rom and kernel are u currently using?
again.. thank u for this fota!

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BenzoX said:
If it start the same rom, it's a kernel for same type (SD/Nand)
Take your kernel for SD and name it boot.img, take your kernel for Nand and name it boot_2.img (or vice versa). Put both on sdcard.
I'll test again my Fota but i'm almost sure it work (i did small modification and haven't tested both boot, but it should work)
This folder is not "essential" and distinctive to both rom.
Only issue may be if you have different version of the same apps on both rom, or if you use same apps on both rom. In this case (and only IF apps data are stored on SD, which is a minority), thing may be a bit confused.
Click to expand...
Click to collapse
I've the 2 kernels renamed boot.img and boot_2.img
But I noticed that only detects one of the kernels
When you start the menu fota options
KERNEL 1
KERNEL 2
No matter which you select because it always opens the same kernel
Do not know if that will be a mistake, it's a question is not affirmation