From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.205]) by ozlabs.org (Postfix) with ESMTP id 0899E68972 for ; Sat, 7 Jan 2006 01:10:46 +1100 (EST) Received: by zproxy.gmail.com with SMTP id j2so2805316nzf for ; Fri, 06 Jan 2006 06:10:45 -0800 (PST) Message-ID: <002e01c612ca$f7614a80$0760120a@photon> From: "HappyPhot" To: "David Jander" References: <000701c60fab$9fdca6a0$0760120a@photon> <200601031410.55884.david.jander@protonic.nl> <004701c611a8$557dbf00$0760120a@photon> <200601050852.45616.david.jander@protonic.nl> Date: Fri, 6 Jan 2006 22:09:53 +0800 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="UTF-8"; reply-type=original Cc: linuxppc-embedded@ozlabs.org Subject: Re: VFS: Cannot open root device "31:03" or unknown-block(31,3) List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > in your .config: > >> CONFIG_JFFS2_FS=m > > This is wrong. You have to choose "y", not "m" (for module). > This way jffs2 is compiled as a module. That means, that jffs2 filesystem > will > not be available until the module is loaded with "insmod jffs2" of > something > similar. That in turn means that your system has to start up first in > order > to be able to do this, but since you can't start because your root > filesystem > is on jffs2, you have created yourself a "chicken and egg" problem. > If you choose "y" then jffs2 support will be compiled into the kernel, and > thus be available before booting. Hi, David, Yes, you are right. After changing it to 'y', the " VFS: Cannot open root..." message was gone. I'm so happy and thank you very much. Now it is another problem again. (something like: Oops: kernel access of bad area. sig:11...). I am going to check what happened. > > In your bootlog: > >> Linux version 2.6.14.2 (happy@sddlinux1) (gcc version 3.3.3 (DENX ELDK >> 3.1.1 >> 3.3.3-10)) #29 Sun Jan 1 22:34:28 CST 2006 >> Motorola SPS Sandpoint Test Platform > > I see you are using DENX ELDK 3.1.1 and a kernel which AFAIK is not > supported > by this version of ELDK. Are you sure this is supposed to work? It > probably > will, but I don't know what the "Sandpoint" is (it looks like a PowerPC > processor of the MPC7xx series to me), so I couldn't tell. Do you know where to get the infomation about which kernel version it supports? thank you, /HappyPhot