From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lst-amand-152-33-17-184.w82-127.abo.wanadoo.fr ([82.127.60.184] helo=polaris.sacet.fr) by canuck.infradead.org with esmtps (Exim 4.63 #1 (Red Hat Linux)) id 1Gwhsk-0002bE-50 for linux-mtd@lists.infradead.org; Tue, 19 Dec 2006 11:32:00 -0500 Received: from [127.0.0.1] (mimosa.sacet.fr [192.168.82.19]) by polaris.sacet.fr (8.12.11/8.12.11) with ESMTP id kBJGWcfN030668 for ; Tue, 19 Dec 2006 17:32:38 +0100 Message-ID: <45881281.8060001@sacet.com> Date: Tue, 19 Dec 2006 17:25:37 +0100 From: Michel LECONTE MIME-Version: 1.0 To: linux-mtd@lists.infradead.org Subject: Reduce boot time with jffs2 and CM-X255 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi, I use a cm-x255 compulab card and I boot on the NAND flash with jffs2 filesystem. My problem is the boot is too long. My method to boot on the NAND flash is : 1) I boot on the cm-x225 via nfs. 2) I format the flash: flash_eraseall -j /dev/mtd1 3) I mount the flash : mount -t jffs2 /dev/mtdblock1 /mountpoint 4) I put the distribution of my system on the flash: cp -r /Distribution/* /mountpoint 5) I unmount the flash : umount /mountpoint 6) Finally, I boot on the cm-x255 board with the 2.6.18 kernel and options are : - Boot options : root=/dev/mtdblock1 rootfstype=jffs2 ip=192.168.82.70:::255.255.255.0:arm:eth0 - Miscellaneous filesystems : Journalling Flash File System v2 (JFFS2) support JFFS2 debugging verbosity à 0 JFFS2 write-buffering support JFFS2 summary support (EXPERIMENTAL) I would like to know what I'm missing or what I have to do to decrease boot time ? Thanks for any suggestion or help. Michel