From: Wolfgang Denk <wd@denx.de>
To: Pravin Pathak <pkpathak@dnrc.bell-labs.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: What is embedded linux ?
Date: Thu, 17 Aug 2000 01:54:45 +0200 [thread overview]
Message-ID: <200008162354.BAA31708@denx.local.net> (raw)
In-Reply-To: Your message of "Wed, 16 Aug 2000 18:03:57 EDT." <399B0FCD.A6E0A6BE@dnrc.bell-labs.com>
Hi Pravin,
in message <399B0FCD.A6E0A6BE@dnrc.bell-labs.com> you wrote:
>
> I have a silly question. How does embedded linux works without disk
> support ?
There are many ways: loading over ethernet, from flash, ...
> I mean from where it loads shell and other application task images
> without any file system
What makes you think there is no filesystem support?
> support ? For VxWOrks/pSOS have a single object file. How about Embedded
> Linux ?
> I am confused on this matter. Or it always need some kind of file
> support like NFS to boot ?
Usually you will always want to have some filesystem support. Unix is
pretty much build around the idea of mounting some type of root
device - so you will usually always find a root directory, most
probably also a /dev/ directory in it, etc.
There are many ways to build such a system. a NFS based root
filesystem is one; another is uising a ramdisk image which is loaded
with the kernel from some boot device (flash, network, ...).
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
Given a choice between two theories, take the one which is funnier.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-08-16 23:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-08-16 22:03 What is embedded linux ? Pravin Pathak
2000-08-16 23:54 ` Wolfgang Denk [this message]
2000-08-17 0:29 ` Graham Stoney
2000-08-18 4:26 ` Dan Malek
2000-08-18 14:25 ` kentborg
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