Database Develop

[Q] Kernel compatibility

Hey all!
I've jsut want to ask you, that how depends on the compatibility of a rom on a kernel? so what need to modify in a rom for being compatible with the specific kernel(nAa for exemple).

I've got no idea But if your point is to create a rom, I think you should start by working with the stock kernel for now

kevin coelho said:
I've got no idea But if your point is to create a rom, I think you should start by working with the stock kernel for now
Click to expand...
Click to collapse
i've just want to make compatibile a rom with nAa11

From my experience the correct Kernel to use is always suggested by the developers of the ROM. For example the Minicm7-2.1.9 is built around the nAa Kernel and as far as I'm aware the ROM will only work with that Kernel.
CM7 suggests a FreeXperia Kernel which comes with the ROM (e.g. FX043) - I've not had any luck with this kernel and ROM myself. I did get the CM7 ROM installed with the nAa kernel but it kept freezing up.
Always try the suggested kernel or search for compatable kernel for the ROM you want to use. Of course you can always try to load any rom to any kernel and experiment / hope for the best as I have....
Hope this helped.

[MOD] [CM7] Use Custom Kernel's with latest CM7 Nightlies

Back in February, there were some updates to CM7 that broke using custom kernels. The last nightly that worked with custom kernels was #58. After some digging around, I found out that it is the graphics lib's that cause the problem.
This mod replaces the graphics driver lib's in your CM7 rom with an older version that is compatible with custom kernels such as Nova.
WARNING: DO NOT use this mod with Huexx's new 4.1 kernel or with a new stock cm7 kernel.
Tested and working fine on Temasek #62 with Nova 11c.
To Install:
1. Flash CM7 rom
2. Flash P970-CM7-UseCustomKernel-MOD
3. Flash custom kernel
4. Power off, wait 5 seconds, power on (if you choose reboot from cwm, occasionally it will lock at the LG logo. If this happens, pull the battery then power on again. Powering off avoids this bug).
Enjoy.
Update: This seems only to be working with Nova 11c at the moment. Use that one until I can find a workaround for the others.
Update2: I just got Nova v7 working using Apold's Kernel Injector, so the problem was obviously with the ramdisk. This process is a bit more complicated, so I'm going to mod Nova v7 and Huexx's v4 kernels, then post modded working versions of those. If anyone wants one of the other versions, please let me know.
The process to do it yourself is:
1. Unzip kernel
2. Use Racer Kitchen v2 to separate the ramdisk and kernal http://android.modaco.com/topic/340710-tool-edit-bootimg/
3. Use kernel injector from Nova 11c and mod the installation script as necessary, including the older graphics lib's.
Update 3: Uploaded a modified Nova v7 CFS to work with the latest CM7 nightlies. This should also work with cwm touch (confirmation required). To Install:
1. Flash any CM7 rom
2. Flash P970-CM7_NovaKernel_v07_CFS-Modded_for_latest_CM7.zip
3. Reboot (If it locks at the LG logo, pull the battery, it should work fine second time).
Please note that I cannot fix bugs in this kernel, there is no source. Use it as it is, or don't use it. Thanks to Knzo for this brilliant kernel, thanks to Apold for his fantastic kernel injector.
For more info on the Nova Kernel, please check the original thread: http://forum.xda-developers.com/showthread.php?t=1276645
Update 4: Uploaded a modified Huexx v4 kernel to work with the latest CM7 nightlies. This should also work with cwm touch (confirmation required). To Install:
1. Flash any CM7 rom
2. Flash P970-CM7_HuexxxKernel_V4-Modded_for_latest_CM7.zip
3. Reboot (If it locks at the LG logo, pull the battery, it should work fine second time).
Please note that I cannot fix bugs in this kernel. Use it as it is, or don't use it. Thanks to Huexx for this brilliant kernel, thanks to Apold for his fantastic kernel injector. Huexx said a few days ago that if he has time, he'll port his Diana Kernel to CM7. Three cheers for Huexx!
For more info on the Huexx Kernel, please check the original thread: http://forum.xda-developers.com/showthread.php?t=1332311
Update 5: For modded Nova v11c kernel, please use re4lsk's in the Nova Kernel thread: http://forum.xda-developers.com/showpost.php?p=24074871&postcount=1100 Thanks re4lsk.
Update 6: WARNING:
This mod is for use with old kernels only, such as Nova v7, Nova v11c or Huexx's v4, using it with a new kernel with brick it, requiring flashing through smartflash.
DO NOT use this mod with Huexx's new 4.1 kernel or with a new stock cm7 kernel.

What if we add that mod to Nova kernel zip and change the updater script?
Trolling in the deep

re4lsk said:
What if we add that mod to Nova kernel zip and change the updater script?
Trolling in the deep
Click to expand...
Click to collapse
That should work fine. If your going to do that, then you might want to mod the updater script to work with cwm touch as well.

Maybe if they had published their sources someone could add the latests commits done to the CM7 kernel and recompile the kernel.

I really don't know much about code, but i'll try to make Nova compatible.
Trolling in the deep

re4lsk said:
I really don't know much about code, but i'll try to make Nova compatible.
Click to expand...
Click to collapse
Do you mean compatible with your LFD rom? If so, then it should work as its based on CM7.

Huexxx said:
Maybe if they had published their sources someone could add the latests commits done to the CM7 kernel and recompile the kernel.
Click to expand...
Click to collapse
Completely agree. Modding something is a lot easier than creating from scratch.

Moded nova kernel
Compatible to cm, now I'm in RC1, but yeah that will make it available for all cm based roms, and ssince Nova is not my work, if it works I'll publish it inside Nova thread.
Well. I've made it, now i need someone to test this
@brave tester: standard procedure to flash of kernel
NO WIPE but make sure you make a nandroid.
MOD HERE

I have the Temasek # 62, download P970-CM7-UseCustomKernel-MOD, but say you install the custom kernel, what is that?

Bab0 said:
I have the Temasek # 62, download P970-CM7-UseCustomKernel-MOD, but say you install the custom kernel, what is that?
Click to expand...
Click to collapse
Custom kernels offer better performance/battery/stability than the stock CM7 kernel. They offer lots of mods/tweaks to make things better. Stock CM7 kernel is more a general kernel, designed to run on multipy devices with minimum changes.
There are two custom kernels for CM7 on our Optimus Black:
Nova Kernel : http://forum.xda-developers.com/showthread.php?t=1276645
Huexx's Kernel: http://forum.xda-developers.com/showthread.php?t=1332311
Check the corresponding threads for more info.

need a beta tester for post number 8

re4lsk said:
need a beta tester for post number 8
Click to expand...
Click to collapse
What I need to install? the mod and after the NovaV11c?

dcop7 said:
What I need to install? the mod and after the NovaV11c?
Click to expand...
Click to collapse
No. It looks like he has added my mod into the nova kernal installation script. If it works, then you need to flash CM7, then the modded nova.
This is not really necessary, the whole point of this mod is to easily allow flashing any custom kernel on any CM7 rom. Combining this mod and nova will save you a couple of seconds flashing time in cwm, nothing more.

re4lsk said:
need a beta tester for post number 8
Click to expand...
Click to collapse
Well, it booted OK. So I guess it works
Good work!

dcop7 said:
Well, it booted OK. So I guess it works
Good work!
Click to expand...
Click to collapse
great, now test it for a few hours and say if it all works ok, BTW if you are gonna keep submiting bugs at CM issue tracker remove the kernel.

re4lsk said:
great, now test it for a few hours and say if it all works ok
Click to expand...
Click to collapse
So far so good, the only problem is the G button doesn't always wake the phone But is a known bug, right?
re4lsk said:
BTW if you are gonna keep submiting bugs at CM issue tracker remove the kernel.
Click to expand...
Click to collapse
Yeah, I'm aware

jason600 said:
Custom kernels offer better performance/battery/stability than the stock CM7 kernel. They offer lots of mods/tweaks to make things better. Stock CM7 kernel is more a general kernel, designed to run on multipy devices with minimum changes.
There are two custom kernels for CM7 on our Optimus Black:
Nova Kernel : http://forum.xda-developers.com/showthread.php?t=1276645
Huexx's Kernel: http://forum.xda-developers.com/showthread.php?t=1332311
Check the corresponding threads for more info.
Click to expand...
Click to collapse
Well! then look, I have the ROM TEMASEK # 62, just install the kernel step P970-CM7-UseCustomKernel-MOD and the HUEXXX to SD .. INSTALL 1° P970-CM7-UseCustomKernel-MOD 2 ° INSTALL HUEXXX Kernel (huexxx111104-V4.zip) 3 ° Restart and hope ... these are the steps?

Bab0 said:
Well! then look, I have the ROM TEMASEK # 62, just install the kernel step P970-CM7-UseCustomKernel-MOD and the HUEXXX to SD .. INSTALL 1° P970-CM7-UseCustomKernel-MOD 2 ° INSTALL HUEXXX Kernel (huexxx111104-V4.zip) 3 ° Restart and hope ... these are the steps?
Click to expand...
Click to collapse
yep you can do that or test my mod of nova 11con post number 8
traduccion
si esos son los pasos para hacerlo, pero tambien puedes probar mi mod del kernel NOVA que esta en el post numero 8

Bab0 said:
Well! then look, I have the ROM TEMASEK # 62, just install the kernel step P970-CM7-UseCustomKernel-MOD and the HUEXXX to SD .. INSTALL 1° P970-CM7-UseCustomKernel-MOD 2 ° INSTALL HUEXXX Kernel (huexxx111104-V4.zip) 3 ° Restart and hope ... these are the steps?
Click to expand...
Click to collapse
Probably not. I've just tried with Nova v7 and it sticks at the LG logo. Hueuxx's v4 will probably do the same.
Use Nova v11c for now, I'll try and get the other working later. I think that Nova 11c is working because of Apold's Kernel injector.

re4lsk said:
need a beta tester for post number 8
Click to expand...
Click to collapse
Not Work
assert failed; mount ("ext4, "EMMC" "/dev/block/mmcblk0p10","/cache")

Kernel 3.1.10 galaxy mini

I will try to compile the kernel 3.1.10 for galaxy mini.
I wanted to have a very detailed guide. since they are in the early stages.

[email protected] said:
I will try to compile the kernel 3.1.10 for galaxy mini.
I wanted to have a very detailed guide. since they are in the early stages.
Click to expand...
Click to collapse
good luck, but you only cluttering dev section with that... post "i will do" in general

my computer is suddenly broken, can someone fill this kernle using this config file (do not change the config file) and uplodarlo in men flashable zip so that I can test it?? please file config name
cyanogenmod_tass_defconfig

Good jobs man
GT-S5570 with Forum Runner

Please make it first n try to make sure it working before u create new thread..
many people already say want to make this , make that but
they just keep silent without any news ..
i not judge u but i feel boring when people keep say / ask same thing everyday
and not make some research about it..sorry if i hurt u feeling but as the one of xda dev members , i think i should inform u..
Peace & have a nice day ....

Wtf? U have almost said this in 10-12 post spamming around in all threads!.
Sent from my GT-S5570 using xda premium

What's the point? It's 100% it won't boot. Samsung hasn't released 3.x with changes needed for Mini's drivers... You have to forward port a lot of things.

Yeah it is like try running ics kernel on defy (which have kernel from froyo). That's why i think kernel 2.6.35.14 have some bugs and the 2.6.35.7 doesn't have.
@TheWhisp you tested on Cm10 which kernel is more stable 2.6.35.7 or 2.6.35.14 or you just tested cm10 with the 2.6.35.14?

gabrielking9 said:
Yeah it is like try running ics kernel on defy (which have kernel from froyo). That's why i think kernel 2.6.35.14 have some bugs and the 2.6.35.7 doesn't have.
@TheWhisp you tested on Cm10 which kernel is more stable 2.6.35.7 or 2.6.35.14 or you just tested cm10 with the 2.6.35.14?
Click to expand...
Click to collapse
2.6.35.7 kernel was made by Maclaw, and I don't see the point on restarting a older kernel (they will have to backport the same and probably other things again) as 2.6.35.14 is stable enough.
a 3.0 kernel won't be bad, but look at other Galaxy legacy devices forum (I think it was Galaxy i5500 or something like that), they have been working on a 3.0 kernel for a while and it doesn't even boot, they are making progress, but they have to change a LOT of things (partition scheme is a example, this means it won't be compatible with Odin anymore). It's pointless.

The development of the 3.1.10 kernel release Pottete expect between 15-20 days.
In the meantime, I was wondering, since I am very busy could fill kernel 2.6.37.6 based on this (CM9) http://forum.xda-developers.com/showthread.php?t=1804646 and last config TheWhisp JB in order to have a more updated kernel, also enter toolkit linato When completed please post the kernel of quests theater

If u ar determined to create 3.x.x kernel I suggest u take reference of CYANMOBILE LATEST STABLE kernel its already a version 3.3.3 kernel.

Anindya JV said:
If u ar determined to create 3.x.x kernel I suggest u take reference of CYANMOBILE LATEST STABLE kernel its already a version 3.3.3 kernel.
Click to expand...
Click to collapse
Such kernel does not exist! Squadzone rename his kernel like this when he compiled it. So please don't say something like this. Kernel 3.x.x exist onlt for high end device like gs3 or others.
Sent from my GT-S5570 using xda premium

lightstar3103 said:
Such kernel does not exist! Squadzone rename his kernel like this when he compiled it. So please don't say something like this. Kernel 3.x.x exist onlt for high end device like gs3 or others.
Sent from my GT-S5570 using xda premium
Click to expand...
Click to collapse
Sorry,I didn't know that.
THANKS FOR THE INFO BY THE WAY.

[Q] How to make my custom rom support nAa 14 kernel

Guys I have made a custom rom based on CM7.nAa 14 kernel is compatible with CM7.But I want my custom rom also to support it.http://forum.xda-developers.com/images/smilies/crying.gifI have downloaded the .ftf kernel file and I have also extracted it.What changes do I have to do in my rom to make my rom work with the kernel?
Please give a detailed answer.

@OP
Well kudos to you for finding the right section. And what CM7 ROM exactly have you based your ROM on?

It already started working.But thanks for you trying to help.
What I want to know is that there is no networking in my rom.
Please help me fix it.I am talking about a custom rom developed by me based on cm 7.1.

What CM7.1 ROM have you based this on? I'm asking whether you have based your work on any existing ROM or not and the name of that ROM. If that ROM supports nAa-14 kernel, then your ROM will support nAa-14 kernel too.

My rom is supporting the nAa 14 kernel,I have tested it I have a bug in the network. It has no network at the moment. Do you know a fix for this bug ? I am running a rom that is developed by me and I am now testing it.
I haven't released the from here yet.
Sent from my X8 using xda app-developers app

Network bug? I don't even know if logcats can be used to debug. Can you try re-flashing the kernel and the ROM?

Basically you not need to change anything in the kernel. You need change the userspace drivers in the rom to match with the kernel level drivers. Both active x8 gb kernel (nAa and alfs) use similar drivers, except the proximity sensor (nAa use a modded one, alfs use the stock driver), you can use both with the correct libsensorservice and hw libs. And not 100% sure, but nAa use the older kgsl driver (1.1) alfs use newer (1.2), need to change the driver in the rom (libgsl.so).
To solve the network errors, you need to check the RIL related binaries and settings. Better if you give more detailed infos your base rom, the "cm7.1 rom" is not enough. CM7 but the origins? CM7 exists on thousands of phones. Better if you use x8 rom, or rom from a phone what use same hardware (msm7x27 like lg p500, galaxy mini, htc legend, etc...)
Sent from my E15i using xda app-developers app

What more should I add to"cm 7.1"? Please make it clear. Its downloaded from the cyanogen mod download center. It is used as my base rom. I modded it with certain tweaks and replaced many apps and also added many other mods
Sent from my X8 using xda app-developers app

You could have said that it was downloaded directly from cyanogenmod.com for a start. It's pretty confusing when you say just CM7.1 because there are hundreds of CM7.1 ROMs lying around the Development forum, some for stock kernel, some for nAa-gb and others for alfs-gb.
Let me give you a tip if you're just adding tweaks and other mods, and not modifying it on a large scale. Instead of releasing a ROM, why not release a flashable-zip that will make required changes to the existing ROM that users are on. It will be unique and if you want, I can help you with it.
Summary: Why waste time releasing a ROM (~80MB) when you can release a flashable-zip (~10-15MB)?
Cheers.
sgt. meow

I just asked what is your base rom because we not have official cyanogenmod support. If you use only the cm repo to build a complete rom, it will be really hard, due the missing device specific parts. So, the question again (I hope it is clear): you use only the cm repo as base OR use unofficial cm repo from nAa (with working device specific settings/codes) OR use prebuild cm7.1 rom from x8 OR use prebuild cm7.1 rom from other phone. All options is a cm7.1 rom, but all need different works.
From the best to the worst:
1. Use the minicm repo from nAa (nothing to do to get fully working rom)
2. Use prebuilt x8 rom as base (basically not need to do anything)
3. Use the official cm repo (need lot of work because missing a lot of thing)
4. Use any non x8 prebuilt rom (basically the hardest way, need large amount of work with hw related things)
Sent from my E15i using xda app-developers app

@pilu1978
We used to have official CM support till CM7.2 (I guess). It's stated in the CM Shakira page. And you can build CM7 from source as EET has explained in his tutorial. But in any case his best option (if he's going to compile from source) is to use MiniCM7 repo. It's the most updated one.
Plus it will support nAa-14 without any modifications.

The OP wrote this is cm7.1, not 7.2 As I know the official cm7 support is not complete, but my knowledge is NOT unlimited And we not have cm kernel.
Sent from my E15i using xda app-developers app

pilu1978 said:
I just asked what is your base rom because we not have official cyanogenmod support. If you use only the cm repo to build a complete rom, it will be really hard, due the missing device specific parts. So, the question again (I hope it is clear): you use only the cm repo as base OR use unofficial cm repo from nAa (with working device specific settings/codes) OR use prebuild cm7.1 rom from x8 OR use prebuild cm7.1 rom from other phone. All options is a cm7.1 rom, but all need different works.
From the best to the worst:
1. Use the minicm repo from nAa (nothing to do to get fully working rom)
2. Use prebuilt x8 rom as base (basically not need to do anything)
3. Use the official cm repo (need lot of work because missing a lot of thing)
4. Use any non x8 prebuilt rom (basically the hardest way, need large amount of work with hw related things)
Sent from my E15i using xda app-developers app
Click to expand...
Click to collapse
I am using a prebuild x8 rom and modding it

And what is the original rom, what you use as base rom? If it is a stock kernel based rom, you need to change the drivers (sensors, gsl, egl, etc) to work with nAa kernels, if it is a minicm based rom, nothing need to do it will work with nAa kernel.
Sent from my E15i using xda app-developers app

I think he got over that problem by now. LOL.

No man its not working.

See I will explain my question once more. I am using this rom as my base rom: http://download.cyanogenmod.org/?type=stable&device=shakira
I want to make this rom compatible with custom kernels like nAa 14 and alfs etc so what should I do exactly?
If I have to change my drivers then please explain to me how to change my driver to these kernels and also tell me where to find the driver files in the rom and also tell me the download link for the drivers please.
I will be very grateful!
THANKS in advance. Please someone help me.

[Q] CM Kernel?

The question probably doesn't belong here but unfortunately I couldn't find what I wanted to know elsewhere. I've seen that there is a CM port kernel in the kernel list but what does a CM port kernel actually do? Can you install Cyanogenmod ROM with it? Sorry for the basic question but it would very nice if somebody could help me out here!

The kernal fixes some problems in the Roms is what I read? I'm not sure if you can install it with or without it.

You can use the kernel, if you have installed the T700 cm-11.0 build from eousphoros:
http://forum.xda-developers.com/galaxy-tab-s/orig-development/unofficial-cyanogenmod-11-android-4-4-4-t2835170
BG, Nvertigo

Thanks guys!
So I need to flash the ROM first and then the Kernel?

Yes. You will also need to root again the rom isn't rooted.
45 - Alba gu bráth