Image modules?

Glenn Moeller-Holst at
Sat Jul 4 19:38:22 CEST 2009

At 18:10 +0100 04/07/09, Al Johnson wrote:
>On Saturday 04 July 2009, Glenn Moeller-Holst wrote:
>>  >  Flashing tar.gz archives makes little sense. You might want to
>>  >untar it to your / though in case you don't have that modules
>>  >already.
>>  This is what I am not able to read anywhere:
>>  *I actually do not know if I already having modules installed? How do
>>  I test it?
>You should if you are using the kernel that matches the rootfs you picked. In
>the terminal run:
>	uname -r
>This will tell you the kernel release. You should find a matching directory
>under /lib/modules.
>>  *What is modules used for?
>Modules in general are for optional things that you don't want compiled into
>the kernel. They are often drivers.
>The modules-version.tar.gz contains an archive of the modules for the kernel
>of the same version. This is needed by people who want to use a different
>kernel to the one originally used for the root image.
>>  *Is modules (already) included the image?
>Yes. The image is built for a particular kernel, and includes the modules for
>that kernel.
>>  *Why is there a separate file called modules? Why not include it in the
>>  image?
>>  *Is modules a standard Linux "thing"?
>See answers above.
>>  I am asking as a novice. I have not encountered information about modules
>>  at:
>The wiki assumes some basic level of linux knowledge. I guess we should
>include links to some basic linux primers in the 'getting started' page.

To Al and others

Thanks for your answers.

Previously I ruled out that it was kernel modules, because the 
compressed size is about 30MByte.


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