[gentoo-embedded] How to start?

[gentoo-embedded] How to start?

[Carsten Salveter]

Hello,

I want to start with an installation of Linux on a single board PC with 
a 256MB compact flash modul. CPU is a Geode GX1.

Is it necessary to use the uclibc-stages to start with? Is Gnap the 
right tool to build the system? Or is it only to to build small network 
based applications?

The next problem is, that I need a small X-window server on my system. 
Do you see any problems with this CPU/GPU? What kind of windowmanager is
useful?

regards
Carsten

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Re: [gentoo-embedded] How to start?

[Ned Ludd]

On Sun, 2005-04-10 at 14:43 +0200, Carsten Salveter wrote:
> Hello,
> 
> I want to start with an installation of Linux on a single board PC with 
> a 256MB compact flash modul. CPU is a Geode GX1.
> 
> Is it necessary to use the uclibc-stages to start with? Is Gnap the 
> right tool to build the system? Or is it only to to build small network 
> based applications?


http://marc.theaimsgroup.com/?l=gentoo-embedded&m=110218800625580&w=2

Or you can use the GNAP


[snip]
hrmm X stuff.. shrug..

good luck.

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Ned Ludd <solar@gentoo.org>

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Re: [gentoo-embedded] How to start?

[Quentin Arce]

--- Ned Ludd <solar@gentoo.org> wrote:
> On Sun, 2005-04-10 at 14:43 +0200, Carsten Salveter
> wrote:
> > Hello,
> > 
> > I want to start with an installation of Linux on a
> single board PC with 
> > a 256MB compact flash modul. CPU is a Geode GX1.
> > 
> > Is it necessary to use the uclibc-stages to start
> with? Is Gnap the 
> > right tool to build the system? Or is it only to
> to build small network 
> > based applications?

Wow... 256MB on an embedded device!!  With that much
space you could go for the gnap approach of ramdisk
which expands into memory and then overlays there or
you could go for a real un-compressed rootfs.  

Both work.

Just ask yourself what your strategy is for storing
persistent data across reboots.

Q
 
> 
> 
>
http://marc.theaimsgroup.com/?l=gentoo-embedded&m=110218800625580&w=2
> 
> Or you can use the GNAP
> 
> 
> [snip]
> hrmm X stuff.. shrug..
> 
> good luck.
> 
> -- 
> Ned Ludd <solar@gentoo.org>
> 
> --
> gentoo-embedded@gentoo.org mailing list
> 
> 

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Re: [gentoo-embedded] How to start?

[stephane ancelot]

Hi,
I would tell it depends on your application needds :


is it a network or automation or other application ?

need for X11 ?
do you need a write access in the targetted file system ?

Best Regards
Steph




Quentin Arce wrote:

>--- Ned Ludd <solar@gentoo.org> wrote:
>  
>
>>On Sun, 2005-04-10 at 14:43 +0200, Carsten Salveter
>>wrote:
>>    
>>
>>>Hello,
>>>
>>>I want to start with an installation of Linux on a
>>>      
>>>
>>single board PC with 
>>    
>>
>>>a 256MB compact flash modul. CPU is a Geode GX1.
>>>
>>>Is it necessary to use the uclibc-stages to start
>>>      
>>>
>>with? Is Gnap the 
>>    
>>
>>>right tool to build the system? Or is it only to
>>>      
>>>
>>to build small network 
>>    
>>
>>>based applications?
>>>      
>>>
>
>Wow... 256MB on an embedded device!!  With that much
>space you could go for the gnap approach of ramdisk
>which expands into memory and then overlays there or
>you could go for a real un-compressed rootfs.  
>
>Both work.
>
>Just ask yourself what your strategy is for storing
>persistent data across reboots.
>
>Q
> 
>  
>
>>
>>    
>>
>http://marc.theaimsgroup.com/?l=gentoo-embedded&m=110218800625580&w=2
>  
>
>>Or you can use the GNAP
>>
>>
>>[snip]
>>hrmm X stuff.. shrug..
>>
>>good luck.
>>
>>-- 
>>Ned Ludd <solar@gentoo.org>
>>
>>--
>>gentoo-embedded@gentoo.org mailing list
>>
>>
>>    
>>
>
>__________________________________________________
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>Tired of spam?  Yahoo! Mail has the best spam protection around 
>http://mail.yahoo.com 
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>
>
>
>  
>
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Re: [gentoo-embedded] How to start?

[Carsten Salveter]

stephane ancelot schrieb:

Hi Stephane,


> Hi,
> I would tell it depends on your application needds :
> 
> 
> is it a network or automation or other application ?
> 

I want ro create a control system for an industrial application. The 
system has to check an control some parameters from RS232 and LPT Port. 
Maybe USB support in the future. Some parameters has to be visualized on 
a lvds display.

Network is not needed for the first time, maybe in the future.

> need for X11 ?
Yes, or do you habe an other idea to feed a lvds display?

> do you need a write access in the targetted file system ?

Yes, I guess that's may be a problem for the flash memory. I have to 
store some parameters from my applicaton. At the moment
I have no idea how to do that without to crash the flash.

> 
> Best Regards
> Steph
> 

regards
Carsten

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Re: [gentoo-embedded] How to start?

[Quentin Arce]

--- Carsten Salveter <gentoo@linux.salveter.com>
wrote:
> stephane ancelot schrieb:
> 
> Hi Stephane,
> 
> 
> > Hi,
> > I would tell it depends on your application needds
> :
> > 
> > 
> > is it a network or automation or other application
> ?
> > 
> 
> I want ro create a control system for an industrial
> application. The 
> system has to check an control some parameters from
> RS232 and LPT Port. 
> Maybe USB support in the future. Some parameters has
> to be visualized on 
> a lvds display.
> 
> Network is not needed for the first time, maybe in
> the future.
> 
> > need for X11 ?
> Yes, or do you habe an other idea to feed a lvds
> display?
> 

There is an embedded version of X11... I can't recall
the name of the project...  Try google.com

> > do you need a write access in the targetted file
> system ?
> 
> Yes, I guess that's may be a problem for the flash
> memory. I have to 
> store some parameters from my applicaton. At the
> moment
> I have no idea how to do that without to crash the
> flash.

Split the flash.  Then at boot time from the gnap
method, mount the read/write partition under some
known location.  Then have your apps load and store
data to that second partition.

If it's an MTD device, add or check support for it in
the kernel then look at using jffs2

Q


> 
> > 
> > Best Regards
> > Steph
> > 
> 
> regards
> Carsten
> 
> --
> gentoo-embedded@gentoo.org mailing list
> 
> 


		
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