Running only on RAM

[Jacky Buyck]

Hi all.
 
    I'm searching to make (yet another one) project of an embeded system
to make router/fw box. I'm searching informations to make a basic Linux
booting from a Compact Flash and, due to minimal capacity of writing on
CF, the system must ONLY work in RAM (really rare write on the CF).
    It's a like the way CISCO and other product use to due for their
hardware : the system is on a flash memory and it run only in ram.
 
    So I've question about this : like I don't plan to rewrite all an OS
but instead reuse one, I want to know if someone could give me hint
about this regarding Fedora / Redhat ?
    I see that fedora offer a router/fw basic config ... is there a way
to reduce it over the size of the 256 Mo ???
 
Thanks.
JB
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