What is the point of the kernel? - Nexus One Q&A, Help & Troubleshooting

Just a few questions, so here we go.
Is the kernel different from the Rom? If so what does it do?
If you flash a new kernel does it wipe the device of user data?
What would a good kernel that does not use any cpu under or overvolting for my cyanomod-newest version?
Thanks

2nd post of the sticky in the dev section has kernel images. Google kernel, linux in particular, that will give you an idea of what it is and its functions.

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[Q] kernel flashing for what reason?

Hi,
for what reason do I a kernel flash? Are the rom included kernels better then a lonestanding once? can I flash any kernal to any rom?
what is the benifit of flashing an other kernel then the once ued in the rom?
thanks
When you change the kernel you choose a better kernel then stock.
They are more tweaked and habeas more support fir different things.
**Using my own JPX kernel, z4mod, 345MB Ram and ext2 filesystem**
- Different file system (better battery life) (I'm still experimenting with finding the right one)
- Access to the kernel allows you to use the led backlights on the buttons for notifications.
Those are currently the main reasons why I flash diff kernels.
You can have direct acces to one of the most advance lag fixes around(voodoo) better performance ,overclocking ,color correction for ur display,more user accessable ram and so on
audino said:
Hi,
for what reason do I a kernel flash? Are the rom included kernels better then a lonestanding once? can I flash any kernal to any rom?
what is the benifit of flashing an other kernel then the once ued in the rom?
thanks
Click to expand...
Click to collapse
Good question.
Samsung open-sources their released ROMs from time to time and many of the "kernel-hackers" (I'd call them plain hackers, what's with the prefix?) here utilize it to add/provide features and fix bugs (bugs are overlooked by people, its normal).
For instance, SpeedMods' kernel provides an Overclocking support for your Phone's CPU, if you want that extra juice. Likewise, Voodoo provides a set of visual enhancements among other things.
HTH
Another important reason is to regain 2e recovery if you lost it after flashing a stock firmware. This assumes the kernel you choose includes this feature
Fine, thank you all!

[Q] What is a kernel?

I want to OC my NC but i hear i have to have to install a kernel. what exactly is a kernel and how do i install one?
EverythingNook said:
I want to OC my NC but i hear i have to have to install a kernel. what exactly is a kernel and how do i install one?
Click to expand...
Click to collapse
Google works wonders.. .. ..
http://en.wikipedia.org/wiki/Kernel_(computing)
Basically the Kernel is the very heart of the OS. It processes all of the information from the CPU to the hardware, software, and firmware.
You can look in the development section for more information on which kernel to use with your current set up. Not all Kernels are created equally.

[Q] Switch kernels. Wipes?

Hi all.
I'd like to know what should I wipe to safely change from one kernel to the other.
Just flashing kernels, nothing else.
For example if I go from a CF kernel to a stock one.
In that case, will it be possible to wipe from a recovery menu even if I don't have access to CWM anymore?
Thanks a lot.
Kernel script cleaner is good when you changing kernels.
Seems to be for CM7, isn't it?
I don't mean to constantly change kernels so I don't mind wiping through recovery if necessary instead of using some extra app as long as this is the recommended procedure...
Look for lippol94 ultimate kernel cleaning script in the dev section...
There are 2 versions one for CM7 and the other for samsung rom's...
It will be best for changing kernel's
Bork84 said:
Look for lippol94 ultimate kernel cleaning script in the dev section...
There are 2 versions one for CM7 and the other for samsung rom's...
It will be best for changing kernel's
Click to expand...
Click to collapse
I both use and recommend this as well.
if all you are doing is going from CF kernel to stock a clean is not necessary as the CF kernel is mostly stock but with root added. A more comprehensive clean is only needed if moving back from a more heavily customized kernel or from one custom kernel to another.
A system cleanse also is recommended when moving from a custom rom to another and especially if moving back from a deodexed custom rom to an odexed one and after changing themes.

Is there any tool to check for the kernel capabilities Stock ROM.

Is there any way to know what file-systems are supported in the stock kernel? Is there any tool to check for the kernel capabilities? I am in Stock 5.1.1 (.222) kernel. I would like to shift to F2FS if it is supported by the Stock Kernel. Or maybe a loadable module can be developed.
I would love to have an app to list all the things supported in the kernel.
Edit: Sorry, I posted in the wrong thread. Dear Mod, Please Remove the post.

how to know if you're flashing the correct kernal

Want to know what kernels to be flashed over what ROMs?
(I'm new to kernals but know how to flash roms )
hashtag_harsh said:
Want to know what kernels to be flashed over what ROMs?
(I'm new to kernals but know how to flash roms )
Click to expand...
Click to collapse
Hello... Check development and original development forum for kernel threads. You can flash most of them I guess over any ROM unless specified by the OP.
Some also provide different kernels for different Android versions.
Ex: 6.x, 7.x, 7.1.x
Read the first posts of these threads or use the search function and simply download the proper version for your ROM/Android version.
Some offer some extra features, but overall you can tweak most of them as you want with a kernel manager app: kernel adiutor, Ex kernel manager, etc...
Good luck...

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