From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1ELIio-0000Jr-Hz for user-mode-linux-devel@lists.sourceforge.net; Fri, 30 Sep 2005 04:06:34 -0700 Received: from smtp001.mail.ukl.yahoo.com ([217.12.11.32]) by mail.sourceforge.net with smtp (Exim 4.44) id 1ELIin-00019N-Bv for user-mode-linux-devel@lists.sourceforge.net; Fri, 30 Sep 2005 04:06:34 -0700 From: Blaisorblade Subject: Re: [uml-devel] Error running UML References: <229e70f205093003511a49c171@mail.gmail.com> In-Reply-To: <229e70f205093003511a49c171@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200509301306.08001.blaisorblade@yahoo.it> Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Fri, 30 Sep 2005 13:06:07 +0200 To: user-mode-linux-devel@lists.sourceforge.net, Etay Meiri On Friday 30 September 2005 12:51, Etay Meiri wrote: > Hi, > > I downloaded a root file system from: > http://www.stearns.org/uml-root/root_fs.fc-4-base.pristine.20050622.bz2 > and followed the instructions in > http://www.stearns.org/uml-root/root_fs.fc-4-base.pristine.20050622.note > in order to extract it. I am able to mount it as a loop device without > problems. > I applied the patch from > http://www.user-mode-linux.org/~blaisorblade/patches/guest/uml-2.6.13-bs2/u >ml-2.6.13-bs2.patch.bz2 to the 2.6.13 vanilla kernel and built a uml kernel > with ext3 support not as a module. > Now when I run it I get the following error: > [cl@amber uml]$ ./vmlinux mem=160M ubd0=root_fs.2005062201 ubd1=swap > root=/dev/ubd/0 con=pty con0=fd:0,fd:1 root=/dev/ubd/0 is wrong for two reasons: *) you don't need to specify root=, UML automatically sets it to point to ubd0 *) /dev/ubd/0 is the DevFS syntax, and since 2.6.13 DevFS is no more supported. *) I'm not even sure if root=/dev/ubd0 would work - Uml, to be sure, uses major and minor (root=98:0). Thanks for attaching the logs, but look below: > [42949373.560000] VFS: Cannot open root device "ubd/0" or > unknown-block(0,0) [42949373.560000] Please append a correct "root=" boot > option > [42949373.560000] Kernel panic - not syncing: VFS: Unable to mount root fs > on unknown-block(0,0) > [42949373.560000] The trace below is always output in case of panic, but in this case it's not a kernel bug, so don't get confused by it. > [42949373.560000] EIP: 0073:[] CPU: 0 Not tainted ESP: > 007b:b7f7df9c EFLAGS: 00200246 > [42949373.560000] Not tainted > [42949373.560000] EAX: 00000000 EBX: 00000a1f ECX: 00000013 EDX: 00000a1f > [42949373.560000] ESI: 00000a1e EDI: 00000011 EBP: b7f7dfb8 DS: 007b ES: > 007b > [42949373.560000] aae97ac0: [] show_regs+0x309/0x378 > [42949373.560000] aae97af0: [] panic_exit+0x43/0x8c > [42949373.560000] aae97b20: [] notifier_call_chain+0x2e/0x88 > [42949373.560000] aae97b50: [] panic+0x9f/0x1f8 > [42949373.560000] aae97b80: [] mount_block_root+0x116/0x1cc > [42949373.560000] aae97bd0: [] mount_root+0x7e/0x94 > [42949373.560000] aae97bf0: [] prepare_namespace+0x69/0x224 > [42949373.560000] aae97c00: [] init+0x1d7/0x220 > [42949373.560000] aae97c20: [] run_kernel_thread+0x59/0x74 > [42949373.560000] aae97ce0: [] new_thread_handler+0xd2/0x138 > [42949373.560000] aae97d20: [] 0xb7f7f420 > [42949373.560000] > [42949373.560000] -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) http://www.user-mode-linux.org/~blaisorblade ___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel