From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200008162354.BAA31708@denx.local.net> To: Pravin Pathak Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: What is embedded linux ? From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Wed, 16 Aug 2000 18:03:57 EDT." <399B0FCD.A6E0A6BE@dnrc.bell-labs.com> Date: Thu, 17 Aug 2000 01:54:45 +0200 Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: 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/