Mail Archives: opendos/2000/10/30/14:24:10
On Tue, 24 Oct Florian Xaver forwarded:
[Since this private conversation went into a public forum,
for reference I am attaching the original post at the end
of my reply.]
I would need the *exact* error message displayed by DRFAT32.SYS.
When DRFAT32.SYS encounters an error it will refuse to load.
Since there will be no "FAT32XXX" device driver than, DRFAT32.EXE
will also refuse to load. So far, so good.
Before DRFAT32.SYS logs in FAT32 partitions, it painstakingly
analyzes the entries in the partition table and the FAT32
boot sector to ensure it finds a valid FAT32 partition to
work with. Most of these sanity checks can be overridden when
using DRFAT32.SYS command line options. For a list of available
options, just give it an invalid command line like /? or view the
DRFAT32.SYS in a file browser that can display binary files. You
will find the help messages near the end of the driver image.
From the vage description of the problem I would think, that
DRFAT32.SYS has either problems to correctly interpret the
CHS entries in the partition table, or these CHS entries are
not matching the entries in the boot sector, or for unknown
reasons the BIOS gives an error when DRFAT32.SYS attempt
to read a sector. One thing to try is to force it to use
the LBA entries (/X IIRC) even when the partition is of
CHS type. For this to work LBA access must be enabled in
the BIOS for the corresponding drive, so changing the
drive type in the mainboards setup might help. There are
also a number of other overrides for buggy entries created
by most issues of Norton Disk Doctor and to switch to
use a special CHS mapping introduced with some 386 machines
of various brands. However, this seems to be a bit too
specific to explain without knowing better details on the
partitioning.
I would like to have a look at the MBR and the boot sector
of the corresponding drive. These can be read out using
DEBUG or any kind of Diskeditor. The MBR is also saved away
in a hidden file OLDMBR.BIN in the root of the C: drive
when writing a new MBR code from within the DR-DOS FDISK.
I would also appreciate a report created by PowerQuest's
PARTINFO (freely available from their site). Having these
files, I will most probably be able to help.
Matthias
> Date sent: Tue, 24 Oct 2000 17:14:25 +0100
> From: Florian Xaver <florianx AT drdos DOT org>
> Subject: Fw: Help Me Again
> To: <opendos AT delorie DOT com>
> Send reply to: opendos AT delorie DOT com
>
> Hi!
>
> Does somebody knows the answerd?
>
> If yes, please write him: 666 AT mundomail DOT net
>
> Here it is the question:
>
> -----Urspruengliche Nachricht-----
> Von: Manifestes <666 AT mundomail DOT net>
> An: Florian Xaver <dos DOT fire AT aon DOT at>
> Datum: Dienstag, 24. Oktober 2000 16:09
> Betreff: Help Me Again
>
> >I have a problem with the tree partitions
> >The Fdisk of DRDOS display
> >1 FAT16 A 800MB primary partition C:
> >2 FAT16 800MB extended partition D:
> >3 FAT32 400MB primary partition E:
> >
> >in my dconfig.sys exist
> >DEVICE=C:\DRDOS\DRFAT32.SYS
> >LASTDRIVE=E
> >
> >in the autodos7.bat exist
> >C:\DRDOS\DRFAT32.EXE /m:120
> >
> >but when i booting the system:
> >dconfig.sys say can't access Fat 32 drive CBH error
> >and autoexec.bat say error can't access drive FATXXX
> >
> >I can't to access the drive E (FAT32 400MB) with DRDOS but in
> >Win95 yes... I have install the boot loader with drdos
> >
> >Any ideas?
> >
> >Thanks
> >
> >nmag only
> >_____________
> >-----Original Message-----
> >From: "Florian Xaver" <dos DOT fire AT aon DOT at>
> >To: "Manifestes" <666 AT mundomail DOT net>
> >Date: Tue, 24 Oct 2000 15:12:23 +0100
> >Subject: Re: Please Help Me
> >
> >> Hi!
> >>
> >> >How to configure the drfat32.sys and drfat32.exe on system with
> >> >drdos 7.03 and tree partitions?
> >> >The partitions are:
> >> >1.- 800MB Fat 16
> >> >2.- 800MB Fat 16
> >> >3.- 400MB Fat 32
> >>
> >> It should go so:
> >> Include:
> >>
> >> DEVICEHIGH=C:\drdos\drfat32.sys
> >>
> >> into (d)config.sys and into autoexec.bat or autodos7.bat:
> >>
> >> c:\drdos\drfat32.exe.
> >>
> >> There are some options, look "drfat32 /?".
> >>
> >> >P.D. I try to download de BadSeal 0.43 on http://www.badseal.org/
> >> >but the link not finished yet, Are you any place to download it?
> >>
> >> There shouldn't be any problem. I will ask him.
> >>
> >> bye, florian
> >> _____________________________________________________________________
> >> Correo gratis con POP3, IMAP, en 18 idiomas...:
> >> http://www.mundomail.net
> >> 100 MB para tu web y mucho mas: http://www.vermail.net
> >_____________________________________________________________________
> >Correo gratis con POP3, IMAP, en 18 idiomas...: http://www.mundomail.net
> >100 MB para tu web y mucho mas: http://www.vermail.net
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Matthias Paul, Ubierstrasse 28, D-50321 Bruehl, Germany
eMail: <Matthias DOT Paul AT post DOT rwth-aachen DOT de>
Web : http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html
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