From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from wtms.nl ([194.109.57.126]) by pentafluge.infradead.org with smtp (Exim 3.22 #1 (Red Hat Linux)) id 16mxRO-0002IQ-00 for ; Mon, 18 Mar 2002 13:44:47 +0000 Received: from wtms.linux.mtd via Gateway (Mailtraq/2.0.0.1249) by wtms.nl for linux-mtd@lists.infradead.org; Mon, 18 Mar 2002 14:54:16 +0100 From: Wil Taphoorn To: linux-mtd@lists.infradead.org Subject: Re: How to protect DoC 2000 from power fail? Date: Mon, 18 Mar 2002 14:54:16 +0100 Message-ID: <3C95F188.88C52AEB@wtms.nl> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-mtd-admin@lists.infradead.org Errors-To: linux-mtd-admin@lists.infradead.org List-Help: List-Post: List-Subscribe: , List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: Cfowler wrote: > Wil Taphoorn wrote: > > I am looking for some rigid means of power fail protection > > for a DoC 2000 based embedded system. [..snip..] > > I do not use a journalling file system. I load a ext2 fs into memory from a > raw file on DOC2000. If you loose power then you just reboot. No loss of > data. Of course only config changes not the root fs. I store config in a > shared memory sgement. I only write it to DOC when the user issues the > 'save' command. Thanks for you input, Chris, but I can not use that scenario. The system has to save not only run-time information but also system update files received from the network like data, drivers and even the kernel itself. I think I first have to read (and re-read) David's contribution on the subject. Thanks, Wil