From owner-freebsd-questions Mon Sep 6 13:14:48 1999 Delivered-To: freebsd-questions@freebsd.org Received: from quackerjack.cc.vt.edu (quackerjack.cc.vt.edu [198.82.160.250]) by hub.freebsd.org (Postfix) with ESMTP id C248F1556A for ; Mon, 6 Sep 1999 13:14:34 -0700 (PDT) (envelope-from flaw@vt.edu) Received: from mailrelay.vt.edu (gkar.cc.vt.edu [128.173.16.40]) by quackerjack.cc.vt.edu (8.8.8/8.8.8) with ESMTP id QAA14506 for ; Mon, 6 Sep 1999 16:13:25 -0400 (EDT) Received: from flaw (hc6524f68.dhcp.vt.edu) by gkar.cc.vt.edu (Sun Internet Mail Server sims.3.5.1999.05.24.18.28.p7) with SMTP id <0FHN000TDMUCSK@gkar.cc.vt.edu> for freebsd-questions@FreeBSD.ORG; Mon, 6 Sep 1999 16:13:25 -0400 (EDT) Date: Mon, 06 Sep 1999 16:12:20 -0400 From: Raymond Law X-Sender: flaw@mail.vt.edu To: freebsd-questions@FreeBSD.ORG Message-id: <3.0.1.32.19990906161220.00689ef8@mail.vt.edu> MIME-version: 1.0 X-Mailer: Windows Eudora Light Version 3.0.1 (32) Content-type: text/plain; charset=us-ascii Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG What is the Boot: prompt mentinoed below? How do I get it? Q: I get a ``panic: cant mount root'' error when rebooting the system after installation. A: This error comes from confusion between the boot block's and the kernel's understanding of the disk devices. The error usually manifests on two-disk IDE systems, with the hard disks arranged as the master or single device on separate IDE controllers, with FreeBSD installed on the secondary IDE controller. The boot blocks think the system is installed on wd1 (the second BIOS disk) while the kernel assigns the first disk on the secondary controller device wd2. After the device probing, the kernel tries to mount what the boot blocks think is the boot disk, wd1, while it is really wd2, and fails. To fix the problem, do one of the following: 1.At the Boot: prompt, enter 1:wd(2,a)kernel and press Enter. If the system starts, then run the command echo "1:wd(2,a)kernel" > /boot.config to make it the default boot string. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message