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What is a custom kernel?

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RazaVakil7995
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Default What is a custom kernel?

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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coolsandie
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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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RazaVakil7995
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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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coolsandie
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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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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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RazaVakil7995
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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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Can I do it via cwm?? I seriously have no idea what is adb because I'm new to this..
.

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coolsandie
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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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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.
 
mohhasan
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Default 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 ?

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