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[ROM] How to combine root filesystem, kernel in android

Hi all,
I am trying compile and build custom ROM from android source for nexus s.
In the custom ROM for example crespo.zip we have three files inside
*META-INF
*system
*boot.img
I have compiled a android from source , but i don't known which files are needed in "out" directory to make a zip file. i googled and found tools to extract boot.img file and repack it . I don't known what are the steps to follow to create a META-INF folder.
i already rooted my phone and able to install custom ROM .zip downloaded from cynogenmod.
But how to built our own custom ROM
Can anyone give the steps to follow after compiling android from source
Regards
Sivakumar

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Just use CRB image kitchen tool

[TOOL][LINUX][ANDROID][WINDOWS] Jancox Tool Unpack Repack ROMs
Jancox Tool Unpack Repack ROMs Jancox tool is a tool for unpacking and repacking ROMs, in other words this is a tool for modification Android ROM, and it supports Linux, Android and Windows. Requestment Requestment Linux - Installed Python 3...
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