What is a custom kernel? - Android Q&A, Help & Troubleshooting

I've heard that there's this thing called custom kernel and it is required to make swapper work in a rooted device. What it is exactly and where can I find one for my device??
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RazaVakil7995 said:
I've heard that there's this thing called custom kernel and it is required to make swapper work in a rooted device. What it is exactly and where can I find one for my device??
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Custom Kernels are nothing but modified stock kernel. Its done in order to achieve some features which is not present in the kernel provided by Manufactures. You can find one for your device if anybody has created a custom kernel for your "device". Kernels are device specific too.
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But before installing a custom kernel, can I take a backup of my stock kernel too incase something goes wrong?
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RazaVakil7995 said:
But before installing a custom kernel, can I take a backup of my stock kernel too incase something goes wrong?
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Yes, keeping backup of stock kernel is recommended. Kernels are called as boot.img and it should be possible to extract from the device using ADB.
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coolsandie said:
Yes, keeping backup of stock kernel is recommended. Kernels are called as boot.img and it should be possible to extract from the device using ADB.
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Can I do it via cwm?? I seriously have no idea what is adb because I'm new to this..
.
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RazaVakil7995 said:
Can I do it via cwm?? I seriously have no idea what is adb because I'm new to this..
.
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Yes, can do it from CWM. Take a complete Nandroid backup. Open it, and if you see boot.img then you've got your kernel.

all roms have custom kernels ?
I have Note2 and it seems that the chip i have is faulty and i was advised to don't use custom kernels. so there is a way to know if the custom rom is using stock or custom kernel or in other words all roms are having custom kernels ?

Related

Is this a good idea?

Is it a good idea to install CWM before flashing the kernel, is it safe?
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munlicar97 said:
Is it a good idea to install CWM before flashing the kernel, is it safe?
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Yes.
And it will make the next process of installing the ROM much more easy.
The nAa kernel include the cwm, so no need to install CWM first.
But i had problems with flasging the kernel, I have a rooted phone, with unlocked bootloader, and it always says error. So I'll try again to flash it and can it brick my phone?
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If you're talking about a kernel like naa-14, i think that when you flash a kernel that it comes with cwm with it, so there's no need to instal cwm before flashing kernel. If you're getting errors then just try flashing kernels without installing cwm separately.

How to backup kernel?

Does cwm backup kernel also?
If I install a custom kernel. Can I go back to stock one? If yes, how?
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Treble Max said:
Does cwm backup kernel also?
If I install a custom kernel. Can I go back to stock one? If yes, how?
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No. CWM doesn't backup kernel u must flash it in fastbootmode or flashmode.
Press thnx if I helped.
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I can backup kernel?
And how can I switch from custom to stock kernel?
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Treble Max said:
I can backup kernel?
And how can I switch from custom to stock kernel?
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Just download the stock ftf kernel file & flash it with flashtool.
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Treble Max said:
Does cwm backup kernel also?
If I install a custom kernel. Can I go back to stock one? If yes, how?
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u need ruverbridge to backup kernel

Need a quick reply. - Kernel Help

Is it possible to install a custom Kernel if I am already rooted and running a custom ROM (Resurrection Remix)?
If went through Mobile Odin and it said I have no custom Kernel and I want to boot one.
If so how?
yes
AndroidPlant said:
Is it possible to install a custom Kernel if I am already rooted and running a custom ROM (Resurrection Remix)?
If went through Mobile Odin and it said I have no custom Kernel and I want to boot one.
If so how?
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what version of android are you using?
if it is based on samsung leaked rom you can't install a custom kernel.
if it is based on cyanogen base or samsung 4.1.2 base, you can flash siyan kernel !
Most custom kernels can be flashed with cwm recovery... But make sure its a .zip file
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Using Android 4.2.1 - Redirection Remix JB.
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AndroidPlant said:
Using Android 4.2.1 - Redirection Remix JB.
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then why don't you try flashing Latest siyah kernel from CWM recovery? it's a very good one
sriram231092 said:
then why don't you try flashing Latest siyah kernel from CWM recovery? it's a very good one
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So ill just flash the latest Siyah via CWM?
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AndroidPlant said:
So ill just flash the latest Siyah via CWM?
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Yes, simple as that!
AndroidPlant said:
So ill just flash the latest Siyah via CWM?
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yes ! it is a nice kernel with very good performance ! jus flash the latest one and enjoy :good::laugh:

How to install kernel?

So I have rooted my S3 and downloaded CWM through rom manager ( is this good and safe btw )?
Now I am gonna download hypersonic, but about the kernel. Should I download rom then immidieatly download the kernel right away without restarting ?
ShutteN said:
So I have rooted my S3 and downloaded CWM through rom manager ( is this good and safe btw )?
Now I am gonna download hypersonic, but about the kernel. Should I download rom then immidieatly download the kernel right away without restarting ?
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It doesn't matter. Just flash the ROM first. U can boot straight into the ROM then flash the kernel ltr again. Or u can just flash the ROM and followed by the kernel. Rmb. ROM first then kernel.
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Cwm through rom manager is risky
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Cwm through rom manager is risky
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I always flash cwm thru rom manager.
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Mmx update

Hey sup guuyzz....
Had this one small doubt..
If the android 4.4 comes out ota ( over the air) do I have to be unrooted and should stock recovery be installed???
Hit thanks just in case ive helped!!
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No
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What do mean by no???? I need more explanation. ..
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Read your question properly. You asked something and i said no. Do you have trouble in understanding the word "no"
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To get ota u need to be on stock rom rooted and unrooted dont make a diffrence. You need the ota updater app to get ota. Hope this will solve all your doubt's :fingers-crossed:
princechandela said:
To get ota u need to be on stock rom rooted and unrooted dont make a diffrence. You need the ota updater app to get ota. Hope this will solve all your doubt's :fingers-crossed:
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Custom recovery or stock recovery?
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shivambajaj said:
Custom recovery or stock recovery?
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Custom recovery or stock recovery won't matter you can also use custom recovery

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