Hi,
I wanted to ask this in other subforum, but this is my first post and I don't have permission there. Do you have a guide to recommend for creating custom roms?
I know a lot about Linux, I can compile kernels, patch, I know C a little. I programmed couple of Android apps, in Java and Go, so I guess I have some basic knowledge.
What do you guys do, with what source do you start? Is it a stock android source but you modify kernel and modules or you need first to find exact source for that phone?
For example, I own a Lenovo A560, and would like to try build custom rom for it. What would be the first steps?
Thanks,
Milan
Related
First a short question. What is the device configuration.(For example:https://github.com/TeamICS/android_device_htc_heroc) Which information does it contain? I don't think it's the whole Rom, but they update it, change stuff and so on?
Now my actual question:
I want to port a Kernel+System on an unsupported device.
Where do I have to start. Is there a difference between building it from source or port one from a similar device? Is one solution slower, more complicated or anything? There are many tutorials for porting, just bundle a system with a working kernel, but what to do if I want to have the Kernel also?
How do I extract the Device Proprietary Files without an github of the device?
Links, short explanation of the steps or anything else would be helpful.
I am sorry if this post seems to be ill informed, but I am searching and searching and can't find really helpful information..
chaoskoch said:
First a short question. What is the device configuration.(For example:https://github.com/TeamICS/android_device_htc_heroc) Which information does it contain? I don't think it's the whole Rom, but they update it, change stuff and so on?
Now my actual question:
I want to port a Kernel+System on an unsupported device.
Where do I have to start. Is there a difference between building it from source or port one from a similar device? Is one solution slower, more complicated or anything? There are many tutorials for porting, just bundle a system with a working kernel, but what to do if I want to have the Kernel also?
How do I extract the Device Proprietary Files without an github of the device?
Links, short explanation of the steps or anything else would be helpful.
I am sorry if this post seems to be ill informed, but I am searching and searching and can't find really helpful information..
Click to expand...
Click to collapse
First off what device do you have?
This link might be helpful
How to Port Android to Another Device
Now in regard to your questions i'll do my best to answer them best I can. The device configuration think of it as a fingerprint every fingerprint is unique (Although some a very similar), basically when building from source is tells the build what device you want the version of android your compiling to run on. They update and change the device configuration to reflect changes in the different versions of Android (Going from Gingerbread to ICS for example). Porting Kernels is not easy if you don't know C, things about embedded systems, basic Linux knowledge, among other skills but take a look at Guidance regarding Kernel porting, and what do you mean by port system? Here is a basic place to start for kernels AOSP Building Kernels and Building Your First Kernel. Yes their is a difference between porting a kernel and building from source, porting implies taking a kernel from device A and porting it to device B, while building from source means your building directly for device A. Porting in your case is probably going to be harder then building from source. If you want to have the kernel also again you have to modify it to run on the device you are porting it too. To extract proprietary files you have to hook your device up to your computer, turn on usb debugging, and using ADB run these commands:
Code:
cd ~/android/system/device/motorola/sholes/ # Replace Motorola and Sholes with your vendor such as HTC, Samsung, etc. and your device codename
Then run:
Code:
./extract-files.sh
Look at this guide for more info Compiling ICS from Source. Hope this helps you in some way :good:.
Hey guys,
so this is applicable to all devices and its android specific therefore I think this is the best place to ask these question/s. I learned coding with Python for a few months last year and really enjoyed it. Now I am thinking since I have an android phone that is claimed by most "unbrickable" and I am probably stuck with it for another year I decided to learn android programming and contribute to this awesome community and hopefully make my phone awesome myself. Before I can do all that I have a few questions. Most of the development guides I saw after google searching, referred to how to create apps ( now I know there are guides to creating roms here). If I learn with those guides how to make apps will it be a similar process when I wan't to make custom roms? Also how to start? Start with Java SDK, with eclipse? Point to some guides plox
early thanks
There are guides for building apps... and guides for building ROMs... but AFAIK, guides for customising ROMs don't really exist... ROM customisations are generally just done following the API or using someone's work as a reference point....
craigacgomez said:
There are guides for building apps... and guides for building ROMs... but AFAIK, guides for customising ROMs don't really exist... ROM customisations are generally just done following the API or using someone's work as a reference point....
Click to expand...
Click to collapse
I think I worded that wrong. I know there are guides for building apps and building roms but I was asking If I use one of those guides to build app + learn to build app using a book or something will it help me build roms later? And for the custom rom thing, I meant like theres hellfire ics cm9 then theres eaglesblood ics cm9 for same device but by different people so I when I said custom rom I mean like my own ics cm9. but anyway thanks for your answer.
First and last bump
Making ROM's is different then making apps, while the skills you learn using Eclipse and Java JDK will only teach you Java, XML and ADB at most, when making ROM's you need to know many different things. While you can make custom ROM's with little programming experience to be a true master of making custom ROM's you need to know Java and XML, for modifying and creating your own custom apps you can include in your ROM, C and C++ for tweaking the kernel to truly optimize performance, Shell for creating scripts to automate tasks and performing other functions in your ROM, Photoshop/GIMP for image editing and creation in order to customize the look of your ROM, as well as patience to debug any problems you may run into and a couple other skills as well.
If you want to learn how to compile CM9 check out these guides:
[TUTORIAL]Setting up and compiling CM9/CM10 from source
Galaxy Nexus (GSM): Compile CyanogenMod 9 (Linux) It's for the Galaxy Nexus but it's still a very good place to start with to learn how to compile CM9 from source.
For learning basic customization of ROM's check out these great videos:
Let me know if you still have questions .
shimp208 said:
Making ROM's is different then making apps, while the skills you learn using Eclipse and Java JDK will only teach you Java, XML and ADB at most, when making ROM's you need to know many different things. While you can make custom ROM's with little programming experience to be a true master of making custom ROM's you need to know Java and XML, for modifying and creating your own custom apps you can include in your ROM, C and C++ for tweaking the kernel to truly optimize performance, Shell for creating scripts to automate tasks and performing other functions in your ROM, Photoshop/GIMP for image editing and creation in order to customize the look of your ROM, as well as patience to debug any problems you may run into and a couple other skills as well.
Okay that makes sense. So if I learn to make apps since thats what most guides are, I will learn to work with JDK and XML but creating ROMs requires much more knowledge. I am okay with just being able to compile source codes/porting roms from similar devices and what not. I am pretty decent with Photoshop so thats a win Thank you sir
Click to expand...
Click to collapse
Hello,
first of all, sorry if I mislook another similar thread, but even Google didn't find anything, I'm going to ask maybe simple question:
How to compile a CM7 ROM from source?
The reason why I want to compile it on my own is that bieltv has stopped developing, as well as compiling completed ROM. As he stated it on his blog (http://bieltv3.blogspot.cz/), user will have to compile it on his own. I've decided to do that, unless there is already compiled ROM.
Another reason why I'm asking is that I've found lots of threads about compiling it, but all of them were for different devices, my intension is to get a how to specifically for S5830i.
I'm aware about having a Linux box for that, for that reason, I have a Linux server to do it.
I want to just compile it, no other modifications.
Thanks in advance.
Pardon my ignorance. Just for fun and learning, I am willing to build a custom ROM from scratch for Sony Xperia-L from Android AOSP. But, even after going through a number of tutorials, following are the issues which are yet unclear to me:
How to obtain Xperia-L specific drivers to intergrate it into my build. Please note that unlike a few tutorials has suggested, I don't want to start from CM ROMS. I want to do it from 'scratch'
I have downloaded Open source archive for build 15.3.A.1.12, 15.3.A.1.14 and 15.3.A.1.16. It contains two top level directories: kernel and platform. What are these two for? Given the size of AOSP so large, I presume this archive does NOT contain full source for Xperia-L stock ROM. Am I correct to reason that?
Without using kiddie-approach, e.g. different ROM kitchen, what is the recommended approach to for a beginner to master the art?
Hey all,
I am trying to learn a bit about building android. I want to build CM but with a custom kernel (radon by umang).
I used the tutorial that is in the cm page for kenzo, and all is fine.
However, I want to build it with radon kernel.
I understand I have to create a local manifest, and specify the device tree,vendor and kernel and sync it such as in this guide
: http://forum.xda-developers.com/che...evelopment-t2814763/post54118804#post54118804
However, trying different things, I just keep running into different errors, could someone help me to specify the local manifest properly? If there is any mistake in my thinking, I am just trying to learn, so if i am looking at it wrong please guide me in the right direction.