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Hi to all, I want to ask one question ... Right now I am working on Kernel Module Programming and Learning. I want to shrink Kernel, means a Kernel with ...
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  1. #1
    Just Joined!
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    Nov 2006
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    Thumbs up How To Shrink Kernel ?


    Hi to all,
    I want to ask one question ...
    Right now I am working on Kernel Module Programming and Learning.
    I want to shrink Kernel, means a Kernel with having minimum services and size.
    For example, I do not want printing service in my kernel ...
    Another example is say I do not want /proc filesystem module in my kernel ...
    So my problem is how to modify the Kernel and how to make it running after modifying.
    I am also googling in this regard but any good suggestion in this regard is appreciated.
    Thanking in Advance ....
    Waiting for Good Response ...

  2. #2
    Linux Engineer aliov's Avatar
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    Dec 2006
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    Geneva,Beirut
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    1,078
    you modify the configuration of your kernel to minimize it, in the kernel source trees run make menuconfig and disable all what you want.
    after you run make bzImage , make modules , make modules_install, you copy the bzImage to /boot and configure grub/lilo to boot it , not sure it'll boot , probably you'll have a kernel panic due to lack of configuration but in principle you have to configure the kernel to include and built in the ext2 and your filesytem .
    <*> means built in the kernel will load the specified option if needed
    <M> as modules will be installed in /lib/modules/$(uname -r) and this modules in general should be loaded manually .

    i spend a lot of time to optimize the kernel to run my machine , but in the device driver i enable everything related to usb in order to let udev and HAL runs properly.

    a trick also can be used to load the required modules at the boot time by using the initial ram device .

    Hope this help.

    Regards.
    Linux is not only an operating system, it's a philosophy.
    Archost.

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