Messages in this thread | | | Date | Wed, 14 Jan 2009 10:34:22 +0100 | From | Philippe De Muyter <> | Subject | Re: linux kernel without file system |
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On Wed, Jan 14, 2009 at 09:46:48AM +0100, Tomasz Chmielewski wrote: >> 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).
Actually, I was thinking about reducing the footprint of my kernel by removing all the fs-related system calls, so the problem is not where the file-system is, but how to access (serial) devices without giving their "/dev/..." name.
Thanks anyway
Philippe
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