Database Develop

Required knowledge for building and mod Samsung GT-i9000 kernel

Hi, I would like to know what I have to learn in order to mod the stock kernel of GT-i9000, which last version (linux version 2.6.35) was written for the use in Gingerbread 2.3.6. My intention is to make it work in ICS or Jelly Bean Custom Roms, and then start tweaking and experimenting, but I need the basics first
I'm talking about knowledge specific to the kernel since I know how to make C programs and the structure of the android stack (Watched this someone? It's great!). Where I have to go? Websites specialized in the matter, ebooks to read, docs... By the moment I have downloaded and installed the CodeSourcery toolkit Samsung tells to install in the README file.
I expect to not completely brick my only sgs phone, but anyway I would like to know how to do it
EDIT: I edited a bit my question since I though it wasn't clear enough what I already know.

No one can help me? I don't expect to have the whole story, just to know what I have to learn :/ May be I'm not in the right subforum for this question. Full noob here at XDA xD

16bitboy said:
No one can help me? I don't expect to have the whole story, just to know what I have to learn :/ May be I'm not in the right subforum for this question. Full noob here at XDA xD
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Click to collapse
http://www.semaphore.gr/
I do not know, but the kernel is here and probably the best I know?

misacek said:
http://www.semaphore.gr/
I do not know, but the kernel is here and probably the best I know?
Click to expand...
Click to collapse
Yup but is not because I though there was no kernel. I know there are a lot, Devil's, Semaphore... I just want to do it by myself

No,Good work.:banghead:
Sent from my GT-I9000 using xda app-developers app

If you want to create a kernel for ics/jb, you should start with the default kernel of CM9/CM10, as most kernels for ics/jb are based on it. Then you could compare it to Semaphore, devil, ..., to see what they do differently.

[INS-KER] Insecure Kernel (Rooted) for GT-I9300 [Latest: I9300XXELLB (2013-01-15)]

Hello everyone,
I'm are proud to bring you the latest rooted kernels based on samsung stock kernels that you may find in ROMs by Samsung.
Why should i use this kernel?
My kernels are uber-minimal modification of stock kernel used only for rooting (no custom recovery is installed). So the kernel it's like stock just rooted, and there is small chance (or any chance) that it will be detected as modified by service center at the first look
Please find latest of kernels listed below:
*NEW* ROOTED! I9300XXELLB - Jelly Bean (4.1.2) - CL: 748978 - B.Date: 26.12.2012 - Download HERE!
[[size=-2]uname: Linux version 3.0.31-748978 ([email protected]) (gcc version 4.4.3 (GCC) ) #1 SMP PREEMPT Wed Dec 26 15:40:05 KST 2012[/size]]
Instructions:
1. Flash tar file of choosen kernel using Odin
2. Profit!
What's included in this kernel
- Base image of kernel is 100% pure stock by samsung
- adbd in insecure mode (so adb shell will be automatically connected with root priviliges)
Nothing more, nothing less - Enjoy!
If you like my modifications, support me with even a little donation for a beer -> Click to donate!
WARNING: Flashing this kernel will pop-up your custom binary counter! (as when rooting )
Enjoy!

wanna ask, this kernel have sds fix or not?

SDS fix is not in kernel but bootloader and yes, this version (if you will flash full rom) have new bootloader with fixes.
Adam

http://forum.xda-developers.com/showthread.php?t=2091045
from above link, i think the fixes is from kernel.. iinm, the ella firmware has the fix.. not sure from bootloader or kernel..
that's why i ask about this, to know whether ellb = ella in terms of sds fix..

AdamLange said:
SDS fix is not in kernel but bootloader and yes, this version (if you will flash full rom) have new bootloader with fixes.
Adam
Click to expand...
Click to collapse
No it's not.
Also LLB is not latest kernel.
Also this is in the wrong forum.

AndreiLux said:
No it's not.
Also LLB is not latest kernel.
Also this is in the wrong forum.
Click to expand...
Click to collapse
Why then?
Not A not C... LLB??? Strange, bardzo.

AndreiLux said:
No it's not.
Also LLB is not latest kernel.
Also this is in the wrong forum.
Click to expand...
Click to collapse
1. post some more info instead of trolling.
2. its latest in this thread not overall, i never told that this is latest from Samsung
3. REally? its I9300, its ORIGINAL (kernel is not compiled its just stock modded, so its original.)
Something else?
Adam

sebarkh said:
Why then?
Not A not C... LLB??? Strange, bardzo.
Click to expand...
Click to collapse
i will add more soon (pozniej ;>)
Adam

Personally I always thought original means ORIGINALly YOURs (you are the author, not copied), not original Samsung....
But. .. maybe mistaken. ..
Variety makes this forum better anyway. ..

Kernel base is 100% oryginal, its not recompiled or compiled from sources, so in that meaning its 100% STOCK KERNEL.
Insecure kernels have modded adbd and other settings needed to run is as root in INITRAMFS of kernel.
This make it ROOTED STOCK KERNEL 100%

AdamLange said:
SDS fix is not in kernel but bootloader and yes, this version (if you will flash full rom) have new bootloader with fixes.
Adam
Click to expand...
Click to collapse
After reading page after page on this form every one is saying the sd fix is in the kernel. How come your saying it's in the bootloader? Also what do you mean (if you flash full rom) What rom? Its a kernel in your op.
Sent from my GT-I9300 using xda premium

Noone confirmed it isnt. I can't also confirm it is or not. This is not thread about it. Move along
Adam

AdamLange said:
Noone confirmed it isnt. I can't also confirm it is or not. This is not thread about it. Move along
Adam
Click to expand...
Click to collapse
You boldly said that the bootloader had the fix. Now you don't know if it has or not. And your a developer of an original kernel. Move along
Sent from my GT-I9300 using xda premium

AdamLange said:
1. post some more info instead of trolling.
Click to expand...
Click to collapse
There's two massive threads in the general section with enough information, I'm not here to educate you myself, I just pointed it out. We don't need developers coming in and doing false statements as there's enough misinformation on the topic, you already confused some users here.
AdamLange said:
2. its latest in this thread not overall, i never told that this is latest from Samsung
Click to expand...
Click to collapse
Uhm..
I'm are proud to bring you the latest rooted kernels based on samsung stock kernels that you may find in ROMs by Samsung.
Click to expand...
Click to collapse
Actually that is exactly what you've told... Rephrase your English otherwhise.
AdamLange said:
3. REally? its I9300, its ORIGINAL (kernel is not compiled its just stock modded, so its original.)
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Click to collapse
You're mixing up the meaning of original, this section if for original works in the meaning they are made by users (Compiled kernel/ROM/program), not original in the sense as the manufacturer delivers them. It's written in the sticky in the development forum or in the portal post. Repacking kernels isn't original development. Read.
AdamLange said:
Noone confirmed it isnt. I can't also confirm it is or not. This is not thread about it. Move along
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Click to collapse
Actually yes it is confirmed it's in the kernel because we have the kernel code and patch regarding the issue.
Something else?

Sorry for misleading, i didnt noticed the topic with patch, i cant track everyhing.
this thread is about insecure kernel mod not a patch for death of SGS, so please no more offtopic here.
Insecure kernels are stock base (zImage is not modified) kernel with modded initramfs, where STOCK means no "tweaks" in kernel code was made. All insecure kernels works like this so i dont see a point of bashing me for saying its STOCK cause base of kernel is.
I asked mod to clean the thread.
A

And I've said it's not an original work as how you wrote in big capital letters claiming it is. Why are you replying to me about what a (insecure) stock kernel is?
AdamLange said:
I asked mod to clean the thread.
Click to expand...
Click to collapse
Why? It's a development discussion. You can't just go ask a moderator to delete things every time because somebody else is correcting you. That's bothering and abusing moderators.

it is original work. its modded initram by me , base is stock. if you dont like it, dont use it. if you dont like my reference to stock, then dont like it, i dont care.
I asked to clean the thread because you are not discussing, just attacking my work.

I have moved the thread to the Development Forum.
Can the arguments stop now please?
Keep it on topic or leave the thread alone.
Mark.

Building a new kernel need some info

Ok guys i am building a new kernel for you Note users based on the official source that samsung Dropped..i have the source and tools the problem is can someone point me on how to include the recovery as i do not own the device and would like to share some love on this device..else i will just build it without the recovery..
your replies will be much appreciated as this will be step forward for you to have a new kernel..this will be a blind build since i do not own the device i DID own it but never fiddled with it since the device was prone to bricking..

I hope you are aware of the brick bug.
http://forum.xda-developers.com/showthread.php?t=1633943
http://forum.xda-developers.com/showthread.php?t=1857556

Boy124 said:
I hope you are aware of the brick bug.
http://forum.xda-developers.com/showthread.php?t=1633943
http://forum.xda-developers.com/showthread.php?t=1857556
Click to expand...
Click to collapse
He just said that lol
Sent from my Galaxy Nexus using xda premium

Boy124 said:
I hope you are aware of the brick bug.
http://forum.xda-developers.com/showthread.php?t=1633943
http://forum.xda-developers.com/showthread.php?t=1857556
Click to expand...
Click to collapse
yes i am aware of that and it seems the newer ones are now safe from brick bug..but still its never late just to be cautious..

just finished building 1 kernel image..hope i did it right..
note: Always do a backup before borking your device..
test zimage
also i need a clean ramdisk for STOCK TW roms..as i am just using the Revived Hydracore kernel ramdisk..it might not boot as i what i am seeing it..but nonetheless just try if it boots up..

kairi_zeroblade said:
yes i am aware of that and it seems the newer ones are now safe from brick bug..but still its never late just to be cautious..
Click to expand...
Click to collapse
Sorry, but that's kind of a joke: you want to build a kernel for the Note, but you do not have one. And you do not know how to include recovery. And you want to be cautious.
You really expect that a member with a Note would risk his device testing this?
Maybe you should start to build a kernel for a device you own yourself.

ThaiDai said:
Sorry, but that's kind of a joke: you want to build a kernel for the Note, but you do not have one. And you do not know how to include recovery. And you want to be cautious.
You really expect that a member with a Note would risk his device testing this?
Maybe you should start to build a kernel for a device you own yourself.
Click to expand...
Click to collapse
i used the remaining Hydracore remnants for ramdisk and in my inspection i did found a recovery included..nevertheless it seems to be safe as i am reading his deve post before i dived in..
i own an S3 and i built my own kernel for it..based on the Update 7 sources the same goes for my S3 mini(i do not own the device but since sources are available then why not build 1)..also i am not obliging everyone to help..if it boots up then good for you as i can upload the source and for your devs to start spinning things..much more or less its a good start..
you can always ODIN in the stock boot image..if things come worse..also do not blame me since this was the problem with samsung to begin with..
edit1: ok so for those who are interested to help me you can PM me as i want to try the lower exynos platform..this is just weird as the kernel format is in zimage instead of a normal boot.img file..this is just for those who are brave and knows the way around stuff with N7000..

kairi_zeroblade said:
you can always ODIN in the stock boot image..if things come worse..also do not blame me since this was the problem with samsung to begin with..
Click to expand...
Click to collapse
If things come worse you'll make a new "Angelom Kernel". No risk for you - because you can't brick your device.
But in the end each tester has to decide if he wants to test your "blind build".

ThaiDai said:
If things come worse you'll make a new "Angelom Kernel". No risk for you - because you can't brick your device.
But in the end each tester has to decide if he wants to test your "blind build".
Click to expand...
Click to collapse
that is why its just for those who are brave enough..else you stay on stock forever..that is why samsung release these codes..for those who are interested..else just look at those codes..

SGS4 Kernel Source Available

http://www.androidpolice.com/2013/0...or-sprint-and-us-cellular-galaxy-s4-variants/
Let the custom ROMs begin.

agentfazexx said:
http://www.androidpolice.com/2013/0...or-sprint-and-us-cellular-galaxy-s4-variants/
Let the custom ROMs begin.
Click to expand...
Click to collapse
roms have nothing to do with kernel source, just kernels
luckily enough the other variants had kernel source out already and were close enough so i already know the new tricks samsung included it the source

shabbypenguin said:
roms have nothing to do with kernel source, just kernels
luckily enough the other variants had kernel source out already and were close enough so i already know the new tricks samsung included it the source
Click to expand...
Click to collapse
Kernel sources do indeed help in ROM creation though. Helps so one does not have to hack up a kernel to use.

agentfazexx said:
Kernel sources do indeed help in ROM creation though. Helps so one does not have to hack up a kernel to use.
Click to expand...
Click to collapse
you can make a rom without ever touching the kernel. and without kernel source all you can do is unpack it and edit the text files in the ramdisk. its not really hacking.

[Q] How to port I9300 roms to I9305?

Hello , I'm very disappointed of the interest of the developpers for the LTE variant of the S3 so i wanted to port i9300 roms from myself , according to hardware , the only changes are the modem and the ram right ? So how could i port these roms ? From no specific knowings , i'd like to at least learn how to do it without big risks of brick so help please .
Thank you and sorry for english mistakes if i've done some.

aaz03 said:
Hello , I'm very disappointed of the interest of the developpers for the LTE variant of the S3 so i wanted to port i9300 roms from myself , according to hardware , the only changes are the modem and the ram right ? So how could i port these roms ? From no specific knowings , i'd like to at least learn how to do it without big risks of brick so help please .
Thank you and sorry for english mistakes if i've done some.
Click to expand...
Click to collapse
this is not a easy question for random guys like me with almost zero knowledge about developing, although on the other hand a developer could simply explain how its done by f.e. making a thread about porting roms specifically to our i9305 in noobs language (if possible) but i doubt that this will happen, as it is very much time consuming and a lot of thinking and typing work. personally i think a thread like this would bring some life into our i9305s threads, dont you think so..?
to get you already started with some learning and discovering for yourself, read further..
the best method for porting roms is IMO building from source, but this is not as easy as it sounds..
first you will need to set up a build environment. I assume youre using Windows OS, now if you got a 64 bit system this is exactly what you need.. fortunately for you and others there is a custom branch of the Ubuntu OS thanks to @sylentprofet to use with Oracles VB/VM (Virtual Box/Machine) already preconfigured for building or porting roms (both require building/developing experience though) all you need to do is download the source and commit, fork, cherry-pick etc. if you decide to step into the android development world, you will learn more step by step however having some basic knowledge like terminal commands and git commands would be useful.
Also you need to get familiar with github and how it is used, check out here
I recommend lots of research though before actually taking any actions!! all these things will make you feel :silly: at times, but do not give up! for there were is a will, theres a way
good luck :good:
Download builduntu v1.4 here
Download Oracles VB here
Guide-how to build rom from source (most recent one i guess)

MaHo_66 said:
this is not a easy question for random guys like me with almost zero knowledge about developing, although on the other hand a developer could simply explain how its done by f.e. making a thread about porting roms specifically to our i9305 in noobs language (if possible) but i doubt that this will happen, as it is very much time consuming and a lot of thinking and typing work. personally i think a thread like this would bring some life into our i9305s threads, dont you think so..?
to get you already started with some learning and discovering for yourself, read further..
the best method for porting roms is IMO building from source, but this is not as easy as it sounds..
first you will need to set up a build environment. I assume youre using Windows OS, now if you got a 64 bit system this is exactly what you need.. fortunately for you and others there is a custom branch of the Ubuntu OS thanks to @sylentprofet to use with Oracles VB/VM (Virtual Box/Machine) already preconfigured for building or porting roms (both require building/developing experience though) all you need to do is download the source and commit, fork, cherry-pick etc. if you decide to step into the android development world, you will learn more step by step however having some basic knowledge like terminal commands and git commands would be useful.
Also you need to get familiar with github and how it is used, check out here
I recommend lots of research though before actually taking any actions!! all these things will make you feel :silly: at times, but do not give up! for there were is a will, theres a way
good luck :good:
Download builduntu v1.4 here
Download Oracles VB here
Guide-how to build rom from source (most recent one i guess)
Click to expand...
Click to collapse
Thanks mate, i'm gonna try this and gîve you some news, other advices for maybe add some optimizations like linaro and kernel adding for example? I'd like to just port Roms but maybe it would be interesting to build my own rom later
Edit: sorry didn't read the guide, find my answers, thank you

aaz03 said:
Thanks mate, i'm gonna try this and gîve you some news, other advices for maybe add some optimizations like linaro and kernel adding for example? I'd like to just port Roms but maybe it would be interesting to build my own rom later
Click to expand...
Click to collapse
your welcome bro :good:
i really have no idea about how linaro is used in combination with kernel, you really have to google that one or get in contact with a dev. willing to help you out i think the kernel is automatically installed with your build when youre initializing/syncing repos and with commands in terminal its executed to build it. you can of course compile own kernel with modifications but as i said it needs lots of research, wish i could help you..
try for now some basics with the guide for gaining more experience and who knows what you will be capable of in next 2/3 months or less

aaz03 said:
Thanks mate, i'm gonna try this and gîve you some news, other advices for maybe add some optimizations like linaro and kernel adding for example? I'd like to just port Roms but maybe it would be interesting to build my own rom later
Edit: sorry didn't read the guide, find my answers, thank you
Click to expand...
Click to collapse
Here you got some useful video tutorial regarding kernel development with Linaro

MaHo_66 said:
Here you got some useful video tutorial regarding kernel development with Linaro
Click to expand...
Click to collapse
Ty , it 'd try , any other advice for kernel dev ?

aaz03 said:
Ty , it 'd try , any other advice for kernel dev ?
Click to expand...
Click to collapse
not that i know of, the tutorial should be explaining everything