From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from softsteprubberfloors.com ([192.220.111.56] helo=rcmenter.iserver.net) by pentafluge.infradead.org with esmtp (Exim 3.22 #1 (Red Hat Linux)) id 18LncG-0006d5-00 for ; Tue, 10 Dec 2002 16:52:16 +0000 Subject: Re: Which filesystem can live on one flash sector? From: Russ Dill To: fred@sc23.sc.mcel.mot.com Cc: linuxppc-embedded@lists.linuxppc.org, linux-mtd@lists.infradead.org In-Reply-To: <000001c2a011$ab5926f0$940879c8@sc.mcel.mot.com> References: <000001c2a011$ab5926f0$940879c8@sc.mcel.mot.com> Content-Type: text/plain Message-Id: <1039541302.8122.40.camel@timmy> Mime-Version: 1.0 Date: 10 Dec 2002 10:28:22 -0700 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: On Mon, 2002-12-09 at 23:02, fred wrote: > Hi, > > I am using CRAMFS plus RAMFS on my board. > And there is only one sector left for saving configuration data. > Can I put a file system, e.g. JFFS, on it? I'd make another block free and then do some sort of journalling from userspace (each data block has a header with crc, size, header crc, and revision). If you flash it boot block flash, the boot block may be the place to find a couple small free sectors.