Good evening,
I've written a module for my smartphone and I need to compose a rom to install on my device...
I followed some tutorials, so now I know how to build an android kernel, obtaining a zImage.
Now, a friend told me that I must make a backup with clockworkmod (done!) and download on my pc, than I can recover the boot.img from there and split them in ramdisk and kernel.
Now I can compile my new kernel and merge it (the obtained zImage?) with the ramdisk to have a new rom to flash on my device... is true?
But I don't know how I can split the boot.img (maybe with dsixda kitchen?) and how to create the new rom. I tryied som weeks ago with a .zip rom and the dsixda kitchen and I split and recomposed a rom, but files contained in the .zip files was different from files that I downloaded by my device...
Someone can explain me the correct way to do this process? Thank you!
Paolo.dev said:
Good evening,
I've written a module for my smartphone and I need to compose a rom to install on my device...
I followed some tutorials, so now I know how to build an android kernel, obtaining a zImage.
Now, a friend told me that I must make a backup with clockworkmod (done!) and download on my pc, than I can recover the boot.img from there and split them in ramdisk and kernel.
Now I can compile my new kernel and merge it (the obtained zImage?) with the ramdisk to have a new rom to flash on my device... is true?
But I don't know how I can split the boot.img (maybe with dsixda kitchen?) and how to create the new rom. I tryied som weeks ago with a .zip rom and the dsixda kitchen and I split and recomposed a rom, but files contained in the .zip files was different from files that I downloaded by my device...
Someone can explain me the correct way to do this process? Thank you!
Click to expand...
Click to collapse
So many u can use
1. http://forum.xda-developers.com/showthread.php?t=1619473
2. http://forum.xda-developers.com/showthread.php?t=2036528
3. http://forum.xda-developers.com/showthread.php?t=1877807
and many more if u search
Related
Is there a unified manner in which this is done?
I've been looking for a way to precook this kernel here: http://forum.xda-developers.com/showthread.php?t=756774 into my ROM's zip before flashing, to save myself the extra step.
Is there anything special to it? I assumed it might just be as straightforward as copying the entire folder structure into the ROM's zip, but the kernel inquestion actually has a third folder called "kernel".
Any help would be much appreciated, this combined with my LauncherPro cooking question earlier will make this ROM perfect for me
LiquidSolstice said:
Is there a unified manner in which this is done?
I've been looking for a way to precook this kernel here: http://forum.xda-developers.com/showthread.php?t=756774 into my ROM's zip before flashing, to save myself the extra step.
Is there anything special to it? I assumed it might just be as straightforward as copying the entire folder structure into the ROM's zip, but the kernel inquestion actually has a third folder called "kernel".
Any help would be much appreciated, this combined with my LauncherPro cooking question earlier will make this ROM perfect for me
Click to expand...
Click to collapse
unpack the existing rom zip's boot image, copy in the kernel you wants zImage, repack it and plop the boot image back into the sip. then remove all the modules in /system/lib/modules in the rom zip and copy all the modules from the kernel zip into the modules folder in your rom zip.
then you ware ready to go.
Yes man, but where to put the zImage? i have 2 GZ files and 1 folder. i tried to put it in the folder and repack that, and the rom stuck at the splash screen. where to put it and how?
thanks
Hey there XDAians....
Can someone here point me to a walkthrough or tutorial on porting roms from and to devices of different manufacturers,resolution(mdpi,hdpi etc.) etc.I am familiar with the zip method of porting roms from same manufacturer(sony in my case,xperia U to Sola)but i want to know about porting roms from others like htc,samsung etc and Tools/apps needed to accomplish this.Most of the tutorials i found on XDA are based on the same method of zip porting.
Please help me with this,i really want to learn more about porting.
In the minimum, you must learn how to create a boot.img for your new device based on the boot.img (especially the ramdisk) from the old device.
To do this, you must extract the boot.img of your old device, edit the ramdisk (As there are lots of files named like the device, and those must be renamed to match the new device's name) Probably you must also change the content, to match the needs or to update references to some files, where the name changed.
After this, you can recreate the ramdisk.
Than extract a boot.img of your new device to get the kernel. Take the new Kernel and the new Ramdisk and make a new boot.img
Extracting and recreating a boot.img is described in the later part of this article: How to build a custom kernel
Recreating a ramdisk is described in this article: Create/Modify ramdisk
This might be the first step of a lot of steps...
Kind regards Uwe
Hello,
I tried to do a simple task which raise several problem and it start to drive me crazy, so here I am, asking for help. The subject may have been already mentioned, but can't find an issue with the galaxy s3.
I work with ubuntu 12.04 and Odin on win7. My GS3 has XXELL4 baseband, and 3.0.31-742798 kernel version.
I need to load and run a custom module (let's say a "hello world" one for begin) on the galaxy S3.
I compiled it through a Makefile with the toolchain from the ndk package (
Code:
path_to_ndk/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-
and the source code from the samsung web site (GT-I9300_JB_Opensource_Update8.zip).
Obviously, when i tried to insmod my module, I've got some compatibility error like
Code:
Exec format error
.
The fact is that the kernel from website is not the same as the phone one.
So I tried to put the kernel from the website on the phone
I compiled it with the same toolchain and I received a zImage file in result. But what to do with this file ? I extracted a boot.img from the phone with Odin and split it (with perl script stuff) to use the extracted files with my compiled zImage for reconstruct a new boot.img. But since fastboot is not available on GS3 (or I miss something) I can't simply
Code:
$ fastboot flash boot boot.img
, and need to use Odin again. So I replace the boot.img from odin's backup folder on my PC with my boot.img. But the nandroid.md5 file raise an error. Am I doing it wrong or too complicated ? If I can correct the md5 error, is that my module will work ?
I also tried to compil my module directly with the kernel from the phone but didn't manage to extract the kernel files to do it. Stuck with a boot.img. Same with the stock kernel from http://forum.xda-developers.com/showthread.php?t=1646610
I made a lot of research but don't find any concrete solutions to my simple task. Maybe I miss something or looking too deep.
Is there a more simple way to run a custom module on the GS3 ?
sorry for my english
Hello and welcome to xda!
You do not have to use odin to flash your kernel, you can do it via custom recovery too.
Just get an simple cwm package of another kernel for s3 and replace the boot.img in the zip.
I attached a simple empty cwm package, just drag your boot.img to the root of the zip with winrar or something.
hsrars-d said:
Hello and welcome to xda!
You do not have to use odin to flash your kernel, you can do it via custom recovery too.
Just get an simple cwm package of another kernel for s3 and replace the boot.img in the zip.
I attached a simple empty cwm package, just drag your boot.img to the root of the zip with winrar or something.
Click to expand...
Click to collapse
Thanks
I've got also a md5 error when i tried to restore with cwm, since I have no md5 file in my folder. Do I need to generate one ? how ?
EDIT: so a generate a md5 file with md5sum, but still have the Exec format error when i try to insmod my module.
ok, im not good with kernel stuff/modules so i cant help you any further...
try to find someone that has experience with kernel modules
edit: found something with google, not exactly for s3 but the error is pretty common:
http://www.linuxquestions.org/questions/linux-kernel-70/insmod-error-version-magic-4175424366/
http://forum.xda-developers.com/showthread.php?t=444338&page=1
http://stackoverflow.com/questions/...for-android-unknown-relocation-27-when-insmod
Why are you posting in this section?
Glebun said:
Why are you posting in this section?
Click to expand...
Click to collapse
well ... I don't yet have access to other section. But If someone could move the thread in a more appropriate one I'll thanks him.
Yes, you do. Questions go in the Q&A section, obviously
hi guys!
First of all : I'm new to the custom rom scene development. I do know how to flash and so..
So i've installed cygwin and the android kitchen. I took the stock rom provided to me by the manufacturer, i was able to set up the working folder. Then I did : "Build ROM from working folder", without making any changes to apk's or something like that.
When i got the update.zip file i tried flashing it with a recovery and using the update.zip in /sdcard method. The first method just stopped after verifying, the second method said it was an invalid package.
I believe there is something wrong with the signing of the rom. Could you guys help me out?
Thx!
tcornelis said:
hi guys!
First of all : I'm new to the custom rom scene development. I do know how to flash and so..
So i've installed cygwin and the android kitchen. I took the stock rom provided to me by the manufacturer, i was able to set up the working folder. Then I did : "Build ROM from working folder", without making any changes to apk's or something like that.
When i got the update.zip file i tried flashing it with a recovery and using the update.zip in /sdcard method. The first method just stopped after verifying, the second method said it was an invalid package.
I believe there is something wrong with the signing of the rom. Could you guys help me out?
Thx!
Click to expand...
Click to collapse
do you installed java jdk?
how do you make rom using kitchen,via cwm backup or else.
for which phone you are making rom?
His story is history,My story is mystery.
roshan77ss said:
do you installed java jdk?
how do you make rom using kitchen,via cwm backup or else.
for which phone you are making rom?
His story is history,My story is mystery.
Click to expand...
Click to collapse
yes i have the latest java JDK
i've got the update.zip (see 1.png)
in Android Kitchen folder i put the update.zip in the original_update
I had been trying to make a custom ROM or porting a ROM for Micromax Canvas A 96. It has only one custom ROM found in 'needrom' site. As the stock ROM is in a format suitable for SP Flashtool , I wanted to make a CWM flashable ROM in zip format, so that porting will be easier. For this purpose I need 'METAINF' Folder with updater script. So, after searching I came across a guide on 'Converting boot.img +system.img' to CWM flashable zip ROM. I followed it and used android kitchen and got a ROM in zip in the output folder which I re-named (during working on 'cygwin' window). Now I checked it by extracting with 'Express zip' windows software, and it says " The zip is corrupted or encrypted or empty or in an incompatible format'. Now, I do not know how to go about it. Please help me.