Re: Building a stand-alone FS on a very limited flash (newbie question)

[Baruch Chaikin <bchaikin@il.marvell.com>]

All,

To conclude, the recommendation here is to:
o	Compile with uClibC or dietlibc
o	Use busybox
o	Gain extra 0.5 MB space

Another question is the file system itself.  What is the recommendation 
here - JFFS, CRAMFS, anything else?...

Thanks for your answers!
-	Baruch.


Wolfgang Denk wrote:
> In message <20030610125623.GC30175@rembrandt.csv.ica.uni-stuttgart.de> you wrote:
> 
>>># ls -l lib | grep -v '^[ld]'
>>>total 2433
>>
>>I conclude ELDK consists of little more than the basic networking utilities,
> 
> 
> The ELDK (Embedded Linux Development Kit) consists of MUCH more (more
> than 400 MB if you install everything).
> 
> I was just talking about the  ramdisk  image.  You  are  right,  this
> contains busybox plus basic networking utilities. For this framework,
> the compressed image size is about 1.3 MB.
> 
> 
>>and the libc-related parts eat up most of the space. A more feature-rich
>>system probably can't afford to waste that much.
> 
> 
> The oriiginal poster mentioned that he has 2.5 MB available, so if he
> uses something like the framework I mentioned he  still  has  1.2  MB
> compressed size available. This is a _lot_.
> 
> 
> If memroy really gets tight, there are other  places  where  you  can
> save space, for example the O.P. wrote:
> 
> 
>>  0.5 MB is allocated for the firmware code
>>  1.0 MB for the compressed kernel image
>>  2.5 MB for the (compressed?) file system
> 
> 
> The reservation for both the firmware and for  the  kernel  image  is
> more  than generous; 256 kB + 768 kB should be sufficient, too. Which
> gives another 0.5 MB for application stuff.
> 
> 
> Please understand me right: I do not want  to  deny  that  uClibc  or
> dietlibc  are  fine  methods  to  optimize  the memory footprint of a
> system. But for a starter it is probably much easier to use  standard
> libraries as long as there is memory available.
> 
> For the current thread the keyword was "strip". 
> 
> 
> Best regards,
> 
> Wolfgang Denk
> 


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