barebones kernel:where to look

barebones kernel:where to look

[Littlefield, Tyler]

Hello:
I started working on a barebones kernel for the server I am running on 
from something someone else had and it seems to be going good.
I would like to take a good clean kernel and use it for my netbook, but 
I'm not really sure what the essentials are and what can be disabled. 
Basically I want it to be as small as possible with minimal module overhead.
Has anyone else done something like this for a netbook or perhaps 
something else I could borrow? Is there somewhere where I can dig deeper 
into the specifics of the kernel configuration?

Any ideas here would be really appreciated.

-- 
Take care,
Ty
http://tds-solutions.net
He that will not reason is a bigot; he that cannot reason is a fool; he that dares not reason is a slave.

barebones kernel:where to look

[Valdis.Kletnieks at vt.edu]

On Thu, 15 Aug 2013 15:32:25 -0400, "Littlefield, Tyler" said:
> Hello:
> I started working on a barebones kernel for the server I am running on
> from something someone else had and it seems to be going good.
> I would like to take a good clean kernel and use it for my netbook, but
> I'm not really sure what the essentials are and what can be disabled.
> Basically I want it to be as small as possible with minimal module overhead.
> Has anyone else done something like this for a netbook or perhaps
> something else I could borrow? Is there somewhere where I can dig deeper
> into the specifics of the kernel configuration?

Step 1: Boot a distro kernel. These are usually 'allmodconfig' or close to it.
Step 2: Plug in all your USB and other toys at least long enough for udev
to notice them and modprobe their drivers.
Step 3: 'make localmodconfig'.  This will configure to build only the modules listed in
'lsmod' (thus the need to plug stuff in and get it modprobed).
Step 4: Continue building your kernel.
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barebones kernel:where to look

[Robert P. J. Day]

On Thu, 15 Aug 2013, Littlefield, Tyler wrote:

> Hello: I started working on a barebones kernel for the server I am
> running on from something someone else had and it seems to be going
> good. I would like to take a good clean kernel and use it for my
> netbook, but I'm not really sure what the essentials are and what
> can be disabled. Basically I want it to be as small as possible with
> minimal module overhead. Has anyone else done something like this
> for a netbook or perhaps something else I could borrow? Is there
> somewhere where I can dig deeper into the specifics of the kernel
> configuration?

  take a look at the "make localmodconfig" target, which will
configure a kernel with only those modules that are currently loaded.


rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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