From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.195]) by ozlabs.org (Postfix) with ESMTP id BF173688F3 for ; Tue, 3 Jan 2006 01:48:50 +1100 (EST) Received: by zproxy.gmail.com with SMTP id z31so2212509nzd for ; Mon, 02 Jan 2006 06:48:48 -0800 (PST) Message-ID: <000701c60fab$9fdca6a0$0760120a@photon> From: "HappyPhot" To: Date: Mon, 2 Jan 2006 22:48:31 +0800 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="big5"; reply-type=original Subject: 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: , Hi, I've suffered for many days and "google" almost every where. I would like to boot from the flash with jffs2 (i.e. using jffs2 as my root /) . But it alyaws shows: VFS: Cannot open root device..... (whole message is as below) Anybody knows what may cause this ? Please help and thank you. /HappyPhot ==============(booting message)================== ....... physmap flash device: 1000000 at 70000000 phys_mapped_flash: Found 2 x8 devices at 0x0 in 16-bit bank Intel/Sharp Extended Query Table at 0x0031 Using buffer write method cfi_cmdset_0001: Erase suspend on write enabled 5 cmdlinepart partitions found on MTD device phys_mapped_flash Creating 5 MTD partitions on "phys_mapped_flash": 0x00000000-0x00200000 : "k4" mtd: Giving out device 0 to k4 0x00200000-0x00400000 : "k6" mtd: Giving out device 1 to k6 0x00400000-0x00800000 : "rd" mtd: Giving out device 2 to rd 0x00800000-0x00c00000 : "jffs2" mtd: Giving out device 3 to jffs2 0x00c00000-0x02000000 : "others" mtd: Giving out device 4 to others VFS: Cannot open root device "31:03" or unknown-block(31,3) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,3) <0>Rebooting in 180 seconds.. ==========================================