From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marco Stornelli Subject: Re: mount ramdisk rootfs /etc directory to jffs2 filesystem. Date: Wed, 20 Jan 2010 08:57:44 +0100 Message-ID: <2ea1731b1001192357r72d627e2gb36d71f23fd69b2e@mail.gmail.com> References: <20100119095024.GD16182@darwin> <20100119102026.GF16182@darwin> <20100119140600.GH16182@darwin> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=Os5HcI/UbjuLUc1+bzYotcCo1U23WgVqmPLjHjNc+VA=; b=SD2rNpRj9mW8OOBerxO7hIX59vWvmVGL/UHb/ZUwJuByd8aQiQxzZlDpUQAsvgVOrd GXXN8LiSb4jngRDzr26DLakwZAtaTfm+suaqjMP+YgpjhsM6U1Qqr+4VqZ/JosfwPCya wxKJTez76KEjGGkBbVoso+O0luH4OZaOBmAcM= In-Reply-To: Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Johnny Hung Cc: Matthias Kaehlcke , Ricard Wanderlof , kernelnewbies , "linux-mtd@lists.infradead.org" , "linuxppc-dev@lists.ozlabs.org" , "linux-embedded@vger.kernel.org" 2010/1/20 Johnny Hung : > 2010/1/19 Matthias Kaehlcke : >> El Tue, Jan 19, 2010 at 02:17:22PM +0100 Ricard Wanderlof ha dit: >> > I consider to use ramdisk as rootfs because worry about wrong > operation in rootfs (is use jffs2 rootfs) and it will cause system > boot up failed. > Another query, does the syslogd/klogd log files also store in jffs2 > rootfs? Write to jffs2 frequently will reduce flash life cycle. > > BRs, H. Johnny >> >> -- In general a good splitting for rootfs could be: squashfs for rootfs, tmpfs for volatile data (/tmp), ubifs (with a flash partition) for "strong" permanent data (/etc, ....) and pramfs for "light" permanent data (/var/log, .....). I think you should "split" your rootfs. Ramdisk is an old approach with some drawbacks. Marco