[KERNEL] About flashing kernel for all Roms
Because i like to test many different Roms with kernels, i created my own script to flash properly with the recovery.
Often, the Kernels are available for a Rom in particular, in a zip file containing a boot.img with the kernels modules contained in /system/lib/modules
The problem is that to start, Android does not need that kernel, but also the image of a micro file system (zImage) containing startup instructions, but also a list of parameters to pass to the kernel.
The boot.img is the concatenation of the kernel with its startup parameters, and zImage.
To properly replace a kernel, so we need to retrieve the current settings, the current zImage, and reform the boot.img with the new kernel, and of course, replace the modules.
This recovery script make these step:
- Extract the kernel from the boot.img file
- Get the boot parameters of actual kernel.
- Get the actual zImage
- Rebuild the boot.img with new kernel, old boot parameters, old zImage
- Replace the modules in /system/lib/modules
- Flash the new boot.img
Before do that.
Download the kernel from other Rom, you want to flash
Extract from the zip file, boot.img and /system/lib/modules directory
Get my kernel_flash.zip
Replace the system/lib/modules content with the new one.
Replace the boot.img with the new one.
Rebuild you zip file with 7zip (www.7zip.org
This zip file containing:
And flash it under recovery.
I tested these method with Senses Roms, with AOKP or AOSP Roms. Always in my system started succefully.
You should be able to flash this kernel on any ROM (except the boot stock that has an offset of 256 bytes incompatible with the script)
As is, this kernel_flash.zip file contains a yoda kernel 2.1, overclocked to 1.5 Ghz, you can test with your ROM.
Sorry for my english.
Thank you to Google for translation assistance
Thank you for the kernel to yoda (my kernel_flash.zip contain 3.0.16-yoda_v2.1)
Thank you to all XDA developers who allowed me to further my understanding