[Q]Wheres the kernel in the ROM - Android Q&A, Help & Troubleshooting

Ok i wanna know wheres is the kernel in the ROM and as i can replace it for other kernel
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For Android or any Linux distro, kernel image and files are located in /boot partition. Using a root file browser you can navigate to the boot folder under root and see what's in there. You can flash different kernels but if you don't know much about kernels (like me) then stick to the flashable zips that the kernel devs provide.
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Flashing any kernel?

I'm led to believe that you can't flash any kernel with any ROM. Is this true, or can I flash any Vibrant kernel with any ROM?
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nateskates said:
I'm led to believe that you can't flash any kernel with any ROM. Is this true, or can I flash any Vibrant kernel with any ROM?
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Yes its true. You can flash any rom/kernel combo of the same os such as froyo/froyo or gingerbread/gingerbread with the exception of MIUI and CM7 kernel which will only work for those roms.
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So say for example, if I were to flash the Platypus kernel while on MIUI 1.5.27, it wouldn't be a problem?
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nateskates said:
So say for example, if I were to flash the Platypus kernel while on MIUI 1.5.27, it wouldn't be a problem?
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as long as the kernel is labeled with CM7/MIUI in the title, then it's safe to flash to a CM7/Miui rom.
OK thanks.
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How would I flash a kernel in recovery? Do I rename the kernel to "update.zip" or just leave it as is and "install zip from sdcard"?
clockwork recovery?
if so then it doesn't really matter
Name will be irrelevant when you flash from recovery. As you stated, just go to Install from Zip, then Choose Zip file, then pick it out. No specific name is required. "update.zip" is only required when you are trying to initially flash CWM Recovery onto your phone. Otherwise, files for ROMs, Kernels, Modems, etc. can have whatever name as long as they are a .zip file.
And SGS Kernel Flasher, free on the market, is easier.
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ROM from system.img

How do I create a custom rom .zip file from a NAND backup ???
Decompile using yaffs and then what ??? How to make the zip....
And basically how do devs make custom ROMs anyways?? How do they cook the ROM files
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Flash rom and kernel

I am rooted can i flash new rom or kernel without using odin,pc,just recovery..sorry i have always used htc desire..
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Via CWM providing the rom are in CWM flashable format .
Rom custom often kernel no
jje
So i can do as always take zip and flash
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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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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 ?

Unpack boot.img?

Hmm....
It os possible to unpack boot.img on wondows?
I want to make otg kernel or overclock kernel..
somebody help me...
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To unpack a boot image on windows you can use the dsixda kitchen for windows.
aha... I mean zimage unpacking
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