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SubjectRe: linux kernel without file system
> I need to design a very small embedded system that must only control
> one ethernet port and two serial lines and must fit in a very small flash
> memory. So I thought about replacing the call to /etc/init by my application
> program and removing all the file-system part of linux.
> Is that doable ?
> Is there a 'standard' way of doing that ?
> The first problem I see is accessing my serial lines. How could I do that
> without using open("/dev/ttySx"), which requires a file system ?
> Is there a way to access devices that does not require a file-system ?

You could put everything in initramfs (and embed it in the kernel).

Tomasz Chmielewski

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