From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 5 Aug 2001 12:51:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 5 Aug 2001 12:50:50 -0400 Received: from [24.93.67.52] ([24.93.67.52]:11791 "EHLO mail5.nc.rr.com") by vger.kernel.org with ESMTP id ; Sun, 5 Aug 2001 12:50:37 -0400 From: "C. Linus Hicks" To: Cc: Subject: PROBLEM: mkfs wrote to wrong partition Date: Sun, 5 Aug 2001 12:50:16 -0400 Message-ID: <006a01c11dce$b4338bb0$0a0a0a0a@k-6_iii-400.mindspring.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_006B_01C11DAD.2D21EBB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2377.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Importance: Normal X-MS-TNEF-Correlator: 00000000730E8182FE67D31183650080AE00000164B7FB01 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. ------=_NextPart_000_006B_01C11DAD.2D21EBB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I am running Redhat 7.1 with the following: Software: kernel 2.4.6 smp Gnu C 2.91.66 (It's a Redhat system but I use kgcc) Gnu make 3.79.1 binutils 2.10.91.0.2 util-linux 2.10s mount 2.10r modutils 2.4.2 e2fsprogs 1.19 reiserfsprogs 3.x.0j Linux C Library 2.2.2 Dynamic linker (ldd) 2.2.2 Procps 2.0.7 Net-tools 1.57 Console-tools 0.3.3 Sh-utils 2.0 Hardware: Asus P2B-DS with 2 600Mhz P III Intel 1gb memory 3 SCSI disks using the new AIC7XXX driver The point of the following exercise was to move from a single CPU 400Mhz system to a dual 600Mhz and from an IDE disk to SCSI. I already had Redhat 7.1 with a 2.4.6 kernel running on the dual 600 and was replacing it with the system from the 400Mhz IDE system. All operations were performed on the dual 600. While running the system booted with root=/dev/sda2 I made partitions on /dev/sdb just like on /dev/sda, then copied all files over. I modified the lilo.conf in /etc on /dev/sda2 to have boot=/dev/sdb and set the root=/dev/sdb2 for each image. I ran lilo then booted the system. The system looked like I expected it to: mount showed /dev/sdb2 mounted as the root filesystem. Next I did mkfs on the partitions on /dev/sda, starting with the higher partitions and working down, and copied data from hda. By the way, the P2B-DS BIOS allows me to choose whether IDE or SCSI comes first, therefore I can boot from SCSI even though an IDE disk is attached. Current setting was SCSI first. When I got to /dev/sda2 I tried to format it reiserfs, but it complained about the filesystem being mounted. Not quite realizing what was going on yet, I tried mkfs -t ext2 and it worked. Shortly after that, I noticed that df showed /dev/sdb2 as looking nearly empty. I looked with ls and no files showed up. And I started having problems running most commands, as you can imagine. The system seemed to be getting /dev/sda2 confused with /dev/sdb2. This seems like a bug to me, and I wonder if I tried to do something that isn't supported. Keywords: filesystem ext2 reiserfs I've been using Linux for several years now, but have never submitted a bug report before. If you need additional information, please let me know. 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