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[Q] Updating Kernel

I was just wondering that if I am going to update my kernel is it necessary to re-install the rom or do I just install the zip with clockwork and away i go? I've searched the forum and couldn't find anything regarding it, I would appreciate the help! Thanks.

you can just use CWM to installed the kernels without installing the rom but there might be some compatibility issues, so check before doing it.

Ok because the reason I'm asking is because I have SupeAosp with the Trinity kernel but I'm thinking on either upgrading for Trinity 12 to 14 or trying out James Bond Kernel and I thought that there might be some prep work involved.

xmatrix13 said:
Ok because the reason I'm asking is because I have SupeAosp with the Trinity kernel but I'm thinking on either upgrading for Trinity 12 to 14 or trying out James Bond Kernel and I thought that there might be some prep work involved.
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just flash the newer kernel on top. be sure its compatable with the rom. if you do have issues, just reflash the rom(that will bring you back to the roms "stock" kernel).

In this case you can test out different kernels but make sure you have the trinity kernel file in the root folder in case which ever kernel you do flash doesn't work out.
In such a case you would just boot into CWM and re-flash the morfic kernel.
Sent from my Nexus S using XDA Premium App

Thanks for the insight, I look forward to testing out many kernels!

[Q] noobish question here: What is a Kernel?

i had read a couple of posts here and there on how good faux kernel is, on "how smooth it runs or that it gets good battery life" but my question is, what is a kernel? is it only to over/under clock or is it something more that i am missing? what do i need to run it, (requirements you may say) ? i am on weapon g2x 3.0

In a nutshell (from the way i've always understood it) a kernel is basically the bridge of communication between your applications and the phone's hardware. There are no "requirements" to run it on your phone because it's already on there. Without it, you're smartphone would not be functional. These other kernels you hear about are custom made kernels. Kernels can be replaced by flashing one on top of the other (just like a ROM).
For more reading: Kernel

Even more basic understanding. Software for your hardware. If you are a car guy...ECU?

matrix0886 said:
In a nutshell (from the way i've always understood it) a kernel is basically the bridge of communication between your applications and the phone's hardware. There are no "requirements" to run it on your phone because it's already on there. Without it, you're smartphone would not be functional. These other kernels you hear about are custom made kernels. Kernels can be replaced by flashing one on top of the other (just like a ROM).
For more reading: Kernel
Click to expand...
Click to collapse
fortunejr said:
Even more basic understanding. Software for your hardware. If you are a car guy...ECU?
Click to expand...
Click to collapse
Thanks for the answer guys

So, can you mix kernels with custom roms or do they work as a package? If someone comes out with a kernel with a particular feature or fix, can I flash that on my phone to enhance or will it not be compatible with my rom?
thanks

shanipaqman said:
So, can you mix kernels with custom roms or do they work as a package? If someone comes out with a kernel with a particular feature or fix, can I flash that on my phone to enhance or will it not be compatible with my rom?
thanks
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There are kernels designed for certain ROMs. We have kernels for CM7 & AOSP Based ROMs, and kernels for 2.3.3/2.2.2 based ROMs.

IMO Fauxs kernels are the best
Sent from my LG-P999 using XDA App

shanipaqman said:
So, can you mix kernels with custom roms or do they work as a package? If someone comes out with a kernel with a particular feature or fix, can I flash that on my phone to enhance or will it not be compatible with my rom?
thanks
Click to expand...
Click to collapse
Yes you can. The kernel is sort of like the engine of your car. There's certain kernels that only work with CM7, or stock, but they'll usually say in the description.

Flashing kernals causes boot loops

I just got the Captivate yesterday and I'm in love with it. I've been modding my Backflip for a while and I'm fairly certain I know what I'm doing. I've been trying different ROMs and I've currently settled on a rooted stock 2.2 ROM.
I want to change my kernel though, so I put my phone in download mode and flashed the Galaxian kernel via Odin, it finished and then my phone started boot looping. So I one clicked it and tried again with SGS flasher, boot loop. One click restored, tried with CWM, boot loop.
I've also tried Talon, Speedmod, Setiron and a stock kernel with all 3 methods. Nothing will flash without boot looping.

That kernel is designed for reoriented i-9000 roms
Sent from my SAMSUNG-SGH-I897 using XDA App

What about all of the other ones that were supposedly for 2.2 ROMs?

AbaddonVH said:
What about all of the other ones that were supposedly for 2.2 ROMs?
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It needs to be a true captivate 2.2 kernel a lot are i9000's you just need to read the op for whichever kernel you are looking at thoroughly. 90% of the time the dev states if its an i9000 kernel.
The speed mod kernel here, forum.xda-developers.com/showthread.php?t=893880 SHOULD work just make sure to wipe cache and dalvik cache in recovery after install and it should boot.
Sent from my I897 w/Antares Darkcloud, Red Nebula kernel, & 1.3Ghz OC using Tegrak.

You will have to read the description in the first post on the kernel you want to install, and the kernel you were installing was a gingerbread kernel
Sent from my SAMSUNG-SGH-I897 using XDA App

holeindalip said:
You will have to read the description in the first post on the kernel you want to install, and the kernel you were installing was a gingerbread kernel
Sent from my SAMSUNG-SGH-I897 using XDA App
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Yeah. You were trying to install a gingerbread kernel on a froyo ROM. That won't work.

Thanks guys! I think I downloaded the wrong version of SpeedMod the first time, it worked this time. Firstly I didn't know that the difference between i-9000 and i897 meant that much. Secondly, I'm not really sure how to read the kernel topics, they're confusing to say the least :S.
I'll learn sooner or later but thanks for your help everyone.

AbaddonVH said:
Thanks guys! I think I downloaded the wrong version of SpeedMod the first time, it worked this time. Firstly I didn't know that the difference between i-9000 and i897 meant that much. Secondly, I'm not really sure how to read the kernel topics, they're confusing to say the least :S.
I'll learn sooner or later but thanks for your help everyone.
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Yeah some are very confusing the biggest help Is to learn the difference in firmware revision codes. Most captivate roms/kernels begin with k. like kh3, kf1 that sort of thing and from what I remember j is for I9000 eg jv1 etc...
Sent from my I897 w/Antares Darkcloud, Red Nebula kernel, & 1.3Ghz OC using Tegrak.

[Q] Flashing Kernel

How would i got about flashing a new kernel?
im using this tutorial http://forum.xda-developers.com/showthread.php?t=1376027
and will flashing a kernel trip the counter?
are all kernels compatible with all roms?
can i use an att kernel on my 727r?
and which kernel would you reccomend? i hear a lot about Da_g?

OFWGKTADGAF said:
How would i got about flashing a new kernel?
im using this tutorial http://forum.xda-developers.com/showthread.php?t=1376027
and will flashing a kernel trip the counter?
are all kernels compatible with all roms?
can i use an att kernel on my 727r?
and which kernel would you reccomend? i hear a lot about Da_g?
Click to expand...
Click to collapse
Flash the Kernel thru CWM and you wont have to worry about the counter.
no Not all Kernels are compatible with all roms, but we only have four right now any way. and one is a CM7 kernel so you only use that with CM7.
the others are Romracers stockish kernel, Da g's OC kernel, and the Stock kernel itself.
just read the kernel OP it will tell you if its for rogers or at&t.
i personallly dont like to recomend roms and kernels....so my advice is flash away and find one that you like
good luck

thanks for the reply... im interested in the oc kernel, have you tried it? and do you think its worth it to oc? is it stable? i know its has a fast processor on stock so i dont know if overclocking pros really outweigh the cons.

OFWGKTADGAF said:
thanks for the reply... im interested in the oc kernel, have you tried it? and do you think its worth it to oc? is it stable? i know its has a fast processor on stock so i dont know if overclocking pros really outweigh the cons.
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i personally LOVE to OC, but Da G's kernel does have its hikups....and i have been using his Kernels since 0.1 and its now on .43 the overclocking is great, it does seem to make the roms run smoother, but i seemed to suffer alot of SOD's while using his kernel. but they are patches that you can run, like the one in TPCs Rom Thread that may fix that.
but not eveyone experiances the same stuff. again i would just try them and you make like them.
the stock kernel is fast though, but once we get a stable OC kernel believe i will be oc'ing to the max trying to melt my phone.....

Just flashed the CM 7 kernel with the Sky Ice Cream ROM. Now my phone won't go past the Samsung boot screen and I can't get it into recovery. NEED HELP PLEASE!!
Sent from my HTC ThunderBolt using Tapatalk

[Q] Kernel to use with Wind P999 on Froyo 2.2?

Hi
I am with Wind Mobile and have gone back to the Froyo 2.2 rom which came originally installed on the phone due to GPS issues with all of the other roms.
I am actually pretty happy with the performance and stability except the amount the battery lasts as compared to other roms.
Could someone recommend a kernel I can use with the stock froyo rom to get maximum battery life without compromising on stability.
Thanks in advance

ritz23 said:
Hi
I am with Wind Mobile and have gone back to the Froyo 2.2 rom which came originally installed on the phone due to GPS issues with all of the other roms.
I am actually pretty happy with the performance and stability except the amount the battery lasts as compared to other roms.
Could someone recommend a kernel I can use with the stock froyo rom to get maximum battery life without compromising on stability.
Thanks in advance
Click to expand...
Click to collapse
First of all have you root?
Tried this thread ---- > http://forum.xda-developers.com/showthread.php?t=1049154

chipis said:
First of all have you root?
Tried this thread ---- > http://forum.xda-developers.com/showthread.php?t=1049154
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Click to collapse
Yup, I thought you had to have root to flash other roms.
I just wanted to know people's experiences especially those who have used another kernel with Wind Stock Rom. Or if you know of a kernel which is stable with most roms and will likely increase the battery life? I have tried Trinity in the past with CM7 and it was pretty good... would that likely work?
Thanks

ritz23 said:
Yup, I thought you had to have root to flash other roms.
I just wanted to know people's experiences especially those who have used another kernel with Wind Stock Rom. Or if you know of a kernel which is stable with most roms and will likely increase the battery life? I have tried Trinity in the past with CM7 and it was pretty good... would that likely work?
Thanks
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Click to collapse
Well, i havent try kernel on stock rom only custom roms.
Is good idea, but would make sure first if one one kernels are good stock roms

chipis said:
Well, i havent try kernel on stock rom only custom roms.
Is good idea, but would make sure first if one one kernels are good stock roms
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Click to collapse
Thanks for your replies.
Sorry, I didn't quite understand the last part. Would you know of any specific kernels i should try like Faux or Trinity?

ritz23 said:
Thanks for your replies.
Sorry, I didn't quite understand the last part. Would you know of any specific kernels i should try like Faux or Trinity?
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Click to collapse
Well, some times depends on your phone sometimes it does not like some how kernels.
Try using Faux thats my first choice sorry devs but thats my chose, and if it gets laggy (slow)
Try using Trinity, thats my second chose, its pretty nice but like i said depends on your Device, its strange on how phones reacts on the custom kernels defferently .