From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [85.21.88.2] (helo=mail.dev.rtsoft.ru) by canuck.infradead.org with smtp (Exim 4.63 #1 (Red Hat Linux)) id 1Gx0MW-0000NT-LG for linux-mtd@lists.infradead.org; Wed, 20 Dec 2006 07:15:59 -0500 Message-ID: <45892981.7070203@ru.mvista.com> Date: Wed, 20 Dec 2006 15:16:01 +0300 From: Vitaly Wool MIME-Version: 1.0 To: Michel LECONTE Subject: Re: Reduce boot time with jffs2 and CM-X255 References: <45881281.8060001@sacet.com> <4588E35F.8000806@fatti.com> <4588F67A.6080602@sacet.com> In-Reply-To: <4588F67A.6080602@sacet.com> Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: 7bit Cc: Enrico Migliore , linux-mtd@lists.infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hello Michel, Michel LECONTE wrote: > I use a CM-X255 with a NAND Flash of 512 Mo > where roughly 250 Mo are used (90 Mo for the native distribution > provided by Compulab and 160 Mo for specific applications). > I think that first of all this is a design problem. If you want smaller boot time, you need to figure out what exactly you need during the boot time and create minimalistic partitions. Anything else can be mounted later on. Moreover, for the stuff that is effectively read-only I would recommend using read-only filesystem such as cramfs with a read-only translation layer, like this one: http://lists.infradead.org/pipermail/linux-mtd/2006-December/016973.html. Well, that all doesn't mean you shouldn't use SUMMARY for your JFFS2 filesystem. :) Vitaly