From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from r-finger.com (r-finger.com [178.79.160.5]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id C0675E0137C for ; Wed, 4 Apr 2012 03:14:57 -0700 (PDT) Received: from [192.168.0.2] (host86-132-173-70.range86-132.btcentralplus.com [86.132.173.70]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by r-finger.com (Postfix) with ESMTPSA id AF0F699C2 for ; Wed, 4 Apr 2012 11:14:56 +0100 (BST) Message-ID: <4F7C1F1F.4070806@r-finger.com> Date: Wed, 04 Apr 2012 11:14:55 +0100 From: Tomas Frydrych User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.3) Gecko/20120329 Icedove/10.0.3 MIME-Version: 1.0 To: yocto@yoctoproject.org Subject: Not booting on BeagleBoard xM 0x2 X-BeenThere: yocto@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Discussion of all things Yocto List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Apr 2012 10:14:58 -0000 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi, I am trying to get Yocto image built from yesterday's master (Linux-3.0.23-yocto-standard) to boot on the NAND-less version of BeagleBoard xM, but the kernel panics with: ----------------- console log start ------------ Waiting for root device /dev/mmcblk0p2... mmc0: new SDHC card at address 1234 mmcblk0: mmc0:1234 SA04G 3.67 GiB (ro) mmcblk0: p1 p2 VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2) Please append a correct "root=" boot option; here are the available partitions: b300 3858432 mmcblk0 driver: mmcblk b301 120456 mmcblk0p1 00000000-0000-0000-0000-000000000mmcblk0p1 b302 3445942 mmcblk0p2 00000000-0000-0000-0000-000000000mmcblk0p2 VFS: Unable to mount root fs on unknown-block(179,2) User configuration error - no valid root filesystem found Kernel panic - not syncing: Invalid configuration from end user prevents continuing -------------- console log end ------------------------------------ My guess would be the problem is the card being detected as 'ro' (line 3), but I do not know why that is (there is no lock switch on mmc cards). The card itself is fine, it's the original card that came with the board, the original Angstrom demo boots fine from it, and yocto kernel 2.6.37 also used to boot. Tomas