Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269761AbUJMRqi (ORCPT ); Wed, 13 Oct 2004 13:46:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269762AbUJMRqi (ORCPT ); Wed, 13 Oct 2004 13:46:38 -0400 Received: from [81.23.229.73] ([81.23.229.73]:64408 "EHLO mail.eduonline.nl") by vger.kernel.org with ESMTP id S269761AbUJMRqd (ORCPT ); Wed, 13 Oct 2004 13:46:33 -0400 From: Norbert van Nobelen Organization: EduSupport To: root@chaos.analogic.com Subject: Re: Linux-2.6.8 Hates DOS partitions Date: Wed, 13 Oct 2004 19:46:30 +0200 User-Agent: KMail/1.6.2 References: In-Reply-To: Cc: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200410131946.30070.Norbert@edusupport.nl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4094 Lines: 103 msdos==vfat? lilo installed in MBR (Unsafe in some situations!!)? toggle bootability flag with fdisk (under linux ofcourse)? On Wednesday 13 October 2004 19:31, Richard B. Johnson wrote: > Hello DOS haters! > > I used to boot my system as: > > aic7xxx [SCSI 0] > /dev/sda LILO boot record > /dev/sda1 DOS drive C: > /dev/sda5 DOS drive D: > [SCSI 1] > /dev/sdb1 ext2 root "/" > /dev/sdb2 swap-file > [SCSI 2] > /dev/sdc1 ext3 fs > /dev/sdc2 swap-file > /dev/sdc3 ext3 fs > > > /dev/sdb1 / ext2 rw,noatime 0 1 > /dev/sdc1 /alt ext2 rw,noatime 0 2 > /dev/sdb2 none swap defaults 0 2 > /dev/sdc2 none swap defaults 0 2 > /dev/sdc3 /home/users ext2 rw,noatime 0 2 > none /proc proc defaults 0 2 > /dev/sda1 /dos/drive_C msdos defaults 0 2 > /dev/sda5 /dos/drive_D msdos defaults 0 2 > > > Then I added a completely different hard-disk to > boot the following: > > LABEL=/ (/dev/hda2) / ext3 defaults 1 1 > none /dev/pts devpts gid=5,mode=666 0 0 > none /dev/shm tmpfs defaults 0 0 > none /proc proc defaults 0 0 > none /sys sysfs defaults 0 0 > /dev/sdb1 /home/project ext2 defaults 0 0 > /dev/sda1 /dos/drive_C msdos defaults 0 0 > /dev/sda5 /dos/drive_D msdos defaults 0 0 > /dev/hda3 swap swap defaults 0 0 > /dev/sdb2 swap swap defaults 0 0 > /dev/sdc2 swap swap defaults 0 0 > > Only the DOS partitions and the swap are used in this new configuration. > This is a new "Fedora Linux 2" installation on a completely > different IDE hard disk, in which I have to enable boot disks in > the BIOS to boot the new system. > > Immediately after installing the new system I reverted (in the BIOS) > to the original to make sure that I was still able to boot the old > system and the DOS partition. Everything was fine. > > Then I installed linux-2.6.8 after building a new kernel with > the old ".config" file used as `make oldconfig`. Everything was > fine after that, also. > > I have now run for about a week and I can't boot the DOS partition > anymore! I can boot from a DOS diskette and DOS sees 'C:', but > not 'D:'. DOS 'thinks' that C: is bootable but I get "Missing > operating system" when it attempts to boot. I have executed > `fdisk /mbr`, and `sys C:`, as well as Norton's `ndd`. Everything > seems to 'think' that the system should boot. However, it > doesn't. > > I can boot Linux from an emergency floppy and re-run LILO to > make my first SCSI bootable. It will boot Linux, but not > DOS. I can also boot DOS from a floppy and access the > "C:" partition, but not the "D:" one. > > It looks like the new operating system, linux-2.6.8, has > done something bad when it used my SCSI disks for swap. > > I can copy everything from C: and D: from within Linux > and then re-do the DOS partitions, BUT.... bad stuff > will happen again unless the cause is found. I never > had any such problem with linux-2.4.26 and below. I > could even execute dosemu and run DOS compilers, editors, > and assemblers. Not anymore. DOSEMU-1.3.1 won't even > compile with the new 'C' compiler, but that's another > problem. > > > Cheers, > Dick Johnson > Penguin : Linux version 2.6.8 on an i686 machine (5537.79 BogoMips). > Note 96.31% of all statistics are fiction. > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/