Linux-Hardware Digest #408, Volume #13 Sat, 12 Aug 00 15:13:06 EDT
Contents:
Re: Iomega ZIP Drive problems... ([EMAIL PROTECTED])
Re: New Linux hardware advice sought ("Tom Brinkman")
Re: Mouse Scrollbutton ([EMAIL PROTECTED])
Re: Driver Soundblaster Live (smp root)
NIC Help ("Gretchen Schoser")
Wie volle DDS3 Kapazit�t nutzen ? (Juergen Sauer)
Re: New Linux hardware advice sought ([EMAIL PROTECTED])
Linux and USB support ("Kent R. Frazier")
Re: vpx3225d (or: video-in auf elsa erazor 3) ("Kohly")
Re: promise fast trak 66 and suse-linux ("Neil Golstein")
Re: Adaptec AHA2944UW on Redhat 6.1 (Joshua Baker-LePain)
Re: Adaptec AHA2944UW on Redhat 6.1 (Joshua Baker-LePain)
Re: Linux and USB support (E J)
RH 6.1 and Intels i810 ("R@nsh!")
Re: Linux and USB support (Markus Kossmann)
3com 3ccem556 combo pcmcia card modem won't work ("Sharshan")
RTL 8193 poor performance ("nitrox")
Re: bttv: Wierd Problem (Tim)
Re: Simple question about CD-Writing for Linux (Greg Davis)
Re: NIC Help (Dances With Crows)
Re: promise fast trak 66 and suse-linux - followup ("Neil Golstein")
Re: Sound Card Reccomendation (lobotomy)
Saving and Restring and MBR (Randy Cooper)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Iomega ZIP Drive problems...
Date: Sat, 12 Aug 2000 13:17:52 GMT
noauto is set on this device,
as is with cdrom, etc.
AG
------------------------------
From: "Tom Brinkman" <[EMAIL PROTECTED]>
Subject: Re: New Linux hardware advice sought
Crossposted-To: comp.os.linux.setup
Date: Sat, 12 Aug 2000 08:21:10 -0600
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
(Len Philpot) wrote:
>
> I know most of what I want to use will work fine, but I'd like to
> avoid any well-known gotchas when I buy. Any rules of thumb,
> specific hardware to avoid or seek out? So far, I've been
> attracted to the Dell Dimension series, but I'm open to
> alternatives. Huge multimedia capabilities are no major attraction
> for me. Just basic sound with little dinky speakers are fine with
> me.
Without getting into all your other questions, I'd like to
comment on Dell, or any other high volume ready made vendor.
They're junk and getting worse. Because they buy parts in such
high volume they're are able to have it built to their own corner-
cutting, limited, often substandard specs. Best case in point
is the motherboards Intel supplies to Dell. They're not Intels
OEM boards, but built to Dell proprietary standards and to Dell's
questionable specifications. Same thing with their cases and power
supplies.. proprietary junk, and all those items are the foundation
of any system.
As ancedotal evidence of my opinion above, I believe you'll find
that if you contact Dell about a preconfigured Linux system, the
price will be substantially higher than for a comparable Dell
Windoze system. Seems simple to me, they can't use as much of their
normal junk. I believe they will every chance they get tho.
Building your own system is very simple, even for a first timer,
and there's plenty of online tutorials. Just do a Google search,
you'll see what I mean. Buy a quality motherboard (Asus, Soyo, etc)
and don't skimp on the case/PS, ram, video, sound, and such either.
There's plentiful Linux compatible hardware info on the Net, and
much is even distro specific. A side benefit to all this is that
some understanding of your systems hardware, will go a long way
towards increased understanding and ease of use with Linux also.
--
~~ Tom Brinkman [EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Mouse Scrollbutton
Date: 12 Aug 2000 09:55:05 -0400
[EMAIL PROTECTED] wrote:
> (note that the wheel doesn't work in all programs... only those that
> support it...
You can use imwheel to add support. It converts scroll actions to whatever
you want (e.g. the up arrow key if up arrow scrolls for you).
------------------------------
Subject: Re: Driver Soundblaster Live
From: smp root <[EMAIL PROTECTED]>
Date: Sat, 12 Aug 2000 07:08:48 -0700
yes go over to http://opensource.creative.com/snapshot.html
they're the very latest drivers and it's updated every day
apparently. my sblive works well..
===========================================================
Got questions? Get answers over the phone at Keen.com.
Up to 100 minutes free!
http://www.keen.com
------------------------------
Reply-To: "Gretchen Schoser" <[EMAIL PROTECTED]>
From: "Gretchen Schoser" <[EMAIL PROTECTED]>
Subject: NIC Help
Date: Sat, 12 Aug 2000 10:14:15 -0400
In Linux is there a way to see what the MAC address is on you NIC cards.
Reason I am asking is that I have 2 NIC cards that are exactly the same.
One I use for my internal network and the other I use for my DSL. I am
having a hard time getting it set up so that I can use my DSL while I am in
Linux. I have this set up on my Desktop and I also use Windows 98.
If the answer to the question above is no, could you please tell me where I
could go to find out this information.
Thanks
Gretchen
------------------------------
From: Juergen Sauer <[EMAIL PROTECTED]>
Subject: Wie volle DDS3 Kapazit�t nutzen ?
Date: 12 Aug 2000 10:05:25 GMT
Moin,
Ich versuche fast *verzweifelt* auf meinem HP Dat (C1537A)
tats�chlich mal
ca. 12 GB Daten auf einem DDS3 (125m Band) zu speichern,
leider wird das Tape immer wieder bei ca. 4 GB als Voll gemeldet.
(Software cpio, tar, taper 6.9b)
Wo finde ich eine "mt" version, die mit DDS3 umgehen kann ?
Zum setzen "compression 0|1", mit status, der mir auch anzeigt, das
compression aus ist. Die mt-05b habe ich schon hier.
Hat jemand da eine Idee ?
mfG
Jojo
--
- Professionelle Linux Server, Professioneller Support und Dienstleistungen
- AutomatiX GmbH - Vollautomatische Kransteuerungen & SAP f�higes Lagerger�t
- J�rgen Sauer Neue Str. 11 28790 Schwanewede mailto:[EMAIL PROTECTED]
- +49-4209-4699 +49-172-5466499 FAX +49 4209 4644 http://www.automatix.de
- Hinweis: Nach �28 Abs.3 Bundesdatenschutzgesetz WIDERSPRECHE
- ich der Nutzung meiner Daten fuer Werbezwecke!
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: comp.os.linux.setup
Subject: Re: New Linux hardware advice sought
Date: Sat, 12 Aug 2000 14:40:52 GMT
>For minimum desired basic hardware, I'd say:
>* 700+ mHz
>* 128+ MB RAM
>* 20+ GB HD
>* 17" monitor
>* 10-baseT is fine for network, but I'll not go out of my way to
> avoid 100mbs (this is a home network with other 10mbs hosts)
>* 8MB video RAM (I WON'T be playing any games beyond 'solitaire'
> types); I might well be running The Gimp, though.
>
>All that said, I'd like to keep it at/under $2000. I _think_ I
>can do this, but it might be challenging...
Yeah I've heard dell makes some good machines,but...There are probably
other smaller companies that can use your money too. Maybe for the
support, warranty etc, but Im not sure Dell is the place to be looking
for Linux support, correct me on that if Im wrong. Yesterday I emailed
my brother just to show him a price on a system I thought was crazy,
this thing had dual PIII 650'z, 256 ram, 20gigs, the works, no
monitor though, for 1300. Pre-installed with Linux, I was not
intrested in buying but just could not believe the prices out there.
Makes me think it might worthwhile to upgrade from these 166's
afterall. Also, the ad was in comp.sys.linux.announce, which I
understand is moderated, so i guess maybe the advertisements in that
group could possibly be more reputable, again, correct me if Im wrong.
I wont post the ad here, I'm just saying 2000 is a lot of money, I
think you can probably have a dual-processor machine for that kind of
money. Does anyone know how ads get posted in comp.sys.linux announce?
Just stay away from Winmodems, you know that. But I guess some of
these work nowadays?! Dont buy one anyway.
For sound obviously a real sound blaster. But this is changing too, I
got a on-the-motherboard sound chip working yesterday I had not even
bothered to try and get working for about 6 months, I just assumed it
would not work, it did, and it was easy as all hell. My brother has a
straight up Micrsoft Windows Sound System card workin under linux. So,
theres 2 examples of cards/chips that someone would probably
reccommend you stay away from that work, point is, lotsa stuff works
under linux. The SB AWE32 is a good cheap card, if you ask me. Other
multimedia stuff, cameras, scanners, etc..I dunno.
Anyway, give your money to a smaller start-up! Buy a Linux
pre-installed/configured if your worried. Then re-install just for
fun, or you may want a different distro.
charlie
------------------------------
From: "Kent R. Frazier" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Linux and USB support
Date: Sat, 12 Aug 2000 09:39:06 -0500
Hello all,
I've been away from the Linux scene for awhile, and would like to build
another Linux box. How is the support for USB now? Any distro. supporting
this more than the others? I was probably going to build on Red Hat, since
this is what I am use to, but I am open to any and all suggestions.
Thanks,
Kent
--
~~~~~~~~~~~~~~~~~~~~~~~~~
Kent R. Frazier, KD5AES
Grid: DM91sk
SETI at Home: 88WU/1444hrs
~~~~~~~~~~~~~~~~~~~~~~~~~
------------------------------
From: "Kohly" <[EMAIL PROTECTED]>
Subject: Re: vpx3225d (or: video-in auf elsa erazor 3)
Date: Sat, 12 Aug 2000 16:52:55 +0200
i want to use the video-in under (suse 6.4) linux over the vpx3225b-based
elsa erazor III
where can i find a device-driver? (or may anybody write such one...)
what has to be done? (compile/install/config)?
where can i find a f****** manual ;-) or any hints
thankx
gru�
kohly
------------------------------
From: "Neil Golstein" <[EMAIL PROTECTED]>
Subject: Re: promise fast trak 66 and suse-linux
Date: 12 Aug 2000 09:58:03 -0500
Reply-To: "Neil Golstein" <[EMAIL PROTECTED]>
I just got that driver myself today from Promise after emailing them. I
tried to load it - it's a module - in 2.4.0-test1 kernel, but it had about 8
failed dependencies, all looked like very hardware specific. Then I tried
it in the RedHat 2.2.14 kernel from RH 6.2 and it also failed, but just with
one dependency. So I think you are going to need the exact kernel which is
from RH 6.1 it is 2.2.12-20, or at least get the 2.2.12 source. I have it
but it is on CD I have to
install it to test it, which I haven't done but I may get to in a day or so.
Then if it works I've got to patch and
recompile everything, ugh! But it might be worth it to have the fasttrak.
It's too bad Promise will probably not give out the source code, but if
someone really smart looked at the failed dependencies, maybe they could
figure out a patch to some other kernels.
I also would like to hear if anyone else has had success with this driver.
"Benjamin Grimm" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> hello,
>
> I've got the alpha driver for redhat 6.1 from this newsgroup (thanks to
> yves bruggemann) but want to use the fast trak 66 with suse linux 6.4.
> anybody here who has done this before ??
>
> thank you in advance
>
> bg
>
------------------------------
From: Joshua Baker-LePain <[EMAIL PROTECTED]>
Subject: Re: Adaptec AHA2944UW on Redhat 6.1
Date: 12 Aug 2000 15:33:49 GMT
[EMAIL PROTECTED] wrote:
> My aic7xxx module does not load.
> # lsmod
> Module Size Used by
> 3c59x 19112 1 (autoclean)
> #
In /etc/conf.modules, add the following line:
alias scsi_hostadapter aic7xxx
--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University
------------------------------
From: Joshua Baker-LePain <[EMAIL PROTECTED]>
Subject: Re: Adaptec AHA2944UW on Redhat 6.1
Date: 12 Aug 2000 15:34:49 GMT
[EMAIL PROTECTED] wrote:
> Hi Rob,
> I got my configuration to work by adding a "modprobe aic7xxx"
> statement to one of the startup scripts. The Linux Answer Guy explains
> where it should go in this
> article:
Or, in /etc/conf.modules, add the following line:
alias scsi_hostadapter aic7xxx
--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University
------------------------------
From: E J <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Linux and USB support
Date: Sat, 12 Aug 2000 08:51:07 -0700
There is full USB support in Kernel 2.4 but it is the testing phase now.
You can download it and try it but it is still in testing.
The latest Red Hat only has partial USB support.
All the distro are coming out with 2.2.x releases until the 2.4 becomes
official.
"Kent R. Frazier" wrote:
> Hello all,
>
> I've been away from the Linux scene for awhile, and would like to build
> another Linux box. How is the support for USB now? Any distro. supporting
> this more than the others? I was probably going to build on Red Hat, since
> this is what I am use to, but I am open to any and all suggestions.
>
> Thanks,
>
> Kent
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~
> Kent R. Frazier, KD5AES
> Grid: DM91sk
> SETI at Home: 88WU/1444hrs
> ~~~~~~~~~~~~~~~~~~~~~~~~~
------------------------------
From: "R@nsh!" <[EMAIL PROTECTED]>
Subject: RH 6.1 and Intels i810
Date: Sat, 12 Aug 2000 18:44:34 +0200
Hi.
I was wondering about the support of RH6.1 to this motherboard.
There are some notes @ http://www.redhat.com/support/docs/tips/i810.html,
but they all talk about 6.2.
I'd really appreciate help and directions - can I install linux with this
motherboard? should I just use Mandrake7.1 (which says they do support this
board)?
Any comments will be welcomed.
TnX, Ran.
------------------------------
From: Markus Kossmann <[EMAIL PROTECTED]>
Subject: Re: Linux and USB support
Date: Sat, 12 Aug 2000 17:10:40 +0200
"Kent R. Frazier" wrote:
>
> Hello all,
>
> I've been away from the Linux scene for awhile, and would like to build
> another Linux box. How is the support for USB now? Any distro. supporting
> this more than the others?
USB will be supported by the 2.4 standard kernel .
There is a backport of the 2.4 code for 2.2 ( at
http://www.suse.cz/development/usb-backport/) which is patched into the
kernels coming with SuSE-6.4 and AFAIK also Mandrake-7.1.
Checkout http://www.linux-usb.org/ for the current status of USB support
in Linux.
--
Markus Kossmann
[EMAIL PROTECTED]
------------------------------
From: "Sharshan" <[EMAIL PROTECTED]>
Subject: 3com 3ccem556 combo pcmcia card modem won't work
Date: Sat, 12 Aug 2000 12:34:44 -0500
I'm having difficulty with my 3com pcmcia combo card. the lan portion works fine, but
the
modem will either not dial or gives me back a strange noise (clicking) from the card.
when i do a query from wvdialconf, the modem is identified correctly, and will
initialize with ATZ
but after that, no go.
Any suggestions would be appreciated. I have tried different init strings to no avail.
thanks,
craig bush
[EMAIL PROTECTED]
------------------------------
From: "nitrox" <[EMAIL PROTECTED]>
Subject: RTL 8193 poor performance
Date: Sat, 12 Aug 2000 18:38:04 +0200
hi!
the realtek cards performance is really bad, it starts at about 100 kb/s and
than stalles...
using the same card under windows works pretty good...(in an 100mbit tp lan)
i�m using suse 6.4, kernel 2.2.16 and the kernel realtek 8129/8139 driver...
pci ne2k driver does not find the networkcard...
HELP!!
------------------------------
From: Tim <[EMAIL PROTECTED]>
Subject: Re: bttv: Wierd Problem
Date: Sat, 12 Aug 2000 16:39:02 GMT
In article <[EMAIL PROTECTED]>,
jurgyman <[EMAIL PROTECTED]> wrote:
> hi,
>
> I have a bt848 based TV board (ADS Channel surfer...) and am
> trying to get it 2 work with latest kernel: 2.4.0-test5.
>
> Modules load fine. I can get video with no sound in xawtv, when
> at the "Composite0" setting. I can get sound but no video, in
> the "Television" setting in xawtv...
>
> is this an xawtv problem/bug/setup or the driver???
>
Did you ever get this working? I have a multi-boot machine with one of
these ADS cards. With a 2.2.16 kernel, it works fine. With 2.4-test2 and
2.4-test6 kernels, I get the same problem you describe.
Sent via Deja.com http://www.deja.com/
Before you buy.
------------------------------
From: Greg Davis <[EMAIL PROTECTED]>
Crossposted-To:
linux.apps.cdwrite,comp.os.linux.questions,comp.os.linux.redhat,comp.os.linux,comp.os.linux.setup
Subject: Re: Simple question about CD-Writing for Linux
Date: Sat, 12 Aug 2000 13:23:54 -0700
Okay, now explicitly what kind of hardware do you have. Is it SCSI or
IDE, and how is it jumpered? Since you have a hdb in the "fstab" file,
I am guessing you have at least two IDE hard drives. Are they on the
same channel? Do you have a CD on the same channel as a HD? Did you
jumper the drives correctly? Each channel should have at least a master
and maybe a slave. Play it safe and don't mix in a cable select
jumpered device. Next, make sure each device is ATAPI jumpered. I had
a HD that didn't become recognized by windows until I jumpered an ATAPI
compatibility pin-position.
Good luck
Greg
------------------------------
From: [EMAIL PROTECTED] (Dances With Crows)
Subject: Re: NIC Help
Date: 12 Aug 2000 17:58:57 GMT
Reply-To: [EMAIL PROTECTED]
On Sat, 12 Aug 2000 10:14:15 -0400, Gretchen Schoser wrote:
>In Linux is there a way to see what the MAC address is on you NIC cards.
>Reason I am asking is that I have 2 NIC cards that are exactly the same.
>One I use for my internal network and the other I use for my DSL. I am
>having a hard time getting it set up so that I can use my DSL while I am in
>Linux. I have this set up on my Desktop and I also use Windows 98.
ifconfig
will tell you this information for every NIC that has been loaded
correctly. I assume that both cards are loaded correctly, and that you
just need to know which one is eth0 and which one is eth1 to set up
IP-masqing/+firewalling rules correctly. Read the HOWTO if you haven't
done so already: http://linuxdoc.org/HOWTO/IP-Masqing-HOWTO.html .
If you can't get both cards loaded correctly, that's its own problem.
Linux supports just about every Ethernet card there is; post the exact
make and model of your cards, and someone will tell you exactly what you
need to do.
--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin / Those who do not understand Unix are
http://www.brainbench.com / condemned to reinvent it, poorly.
=============================/ ==Henry Spencer
------------------------------
From: "Neil Golstein" <[EMAIL PROTECTED]>
Subject: Re: promise fast trak 66 and suse-linux - followup
Date: 12 Aug 2000 13:10:43 -0500
Reply-To: "Neil Golstein" <[EMAIL PROTECTED]>
Well, here's the info. Fortunately since I actually HAVE Redhat I can
switch kernels pretty easy, just rpm them in and out. You would have to
build from source I guess. Anyway, the ftmod61b modules does load in the
2.2.12 kernel, at least the uniprocessor kernel, and at least the one RedHat
calls "i386" haven't tried the "i686" kernel yet but may. The smp kernel
doesn't work by the way, I tried it.
Unfortunately, about 10 seconds after the driver loads (seemingly
successfully), I get a kernel panic, with oops! and aiee! messages, system
freezes, much numbers and etc. displaying on screen, none of which get into
the logs, but what does get into the logs is the following:
Aug 12 11:25:55 neil kernel: FastTrak Driver v1.03 (21.APR.2000) :
Aug 12 11:25:55 neil kernel: scsi1 : FASTTRAK
Aug 12 11:25:55 neil kernel: scsi : 2 hosts.
Aug 12 11:25:55 neil kernel: Vendor: Promise Model: 2+0 Stripe/RAID0
Rev: 1.10
Aug 12 11:25:55 neil kernel: Type: Direct-Access
ANSI SCSI revision: 02
Aug 12 11:25:55 neil kernel: Detected scsi disk sdc at scsi1, channel 0, id
0, lun 0
Aug 12 11:25:55 neil kernel: SCSI device sdc: hdwr sector= 512 bytes.
Sectors= 58673538 [28649 MB] [28.6 GB]
Aug 12 11:25:55 neil kernel: sdc: sdc1
Note that I am running the latest bios for the promise, and yes the size of
the array is correct. Also I loaded an Initio SCSI driver first which is
why you see sdc1, but I also tried it just loading the promise and it set
sda1 for the array, also froze the system, so it's not a conflict with the
other scsi driver.
And NO, in the ten seconds I didn't quick mount the array to see if I could
really access files. Maybe I will though, one last chance is to try the
i686 kernel (I never did know what the difference was). But I suspect it's
a hardware or system bios conflict or something like that. I have a P3500
on a BX board.
Also since I have a genuine contact at Promise maybe I will email them and
ask for help but not counting on it. I would like to know if they are
continuing to work on this driver.
By the way, since I installed the Fasttrak lilo is totally broken, I only
use loadlin now. Interesting. Yet BeOS has no problem.
"Benjamin Grimm" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> hello,
>
> I've got the alpha driver for redhat 6.1 from this newsgroup (thanks to
> yves bruggemann) but want to use the fast trak 66 with suse linux 6.4.
> anybody here who has done this before ??
>
> thank you in advance
>
> bg
>
------------------------------
From: [EMAIL PROTECTED] (lobotomy)
Subject: Re: Sound Card Reccomendation
Date: Sat, 12 Aug 2000 18:09:16 GMT
The Creative/Ensoniq AudioPCI/SB 64PCI/SB 128PCI (they are basically
the same card) is a good choice. Installation is extremely easy, just
install the module or compile support into the kernel and it works.
No need to mess around with manual resource settings or isapnp as with
ISA cards, and the driver is very mature and included with the kernel,
unlike some newer cards (which do you little good in linux because 3d
sound and such aren't supported anyway). Should be able to find one
extremely cheap, <$30.
On Sat, 12 Aug 2000 00:23:13 -0500, "jeff kucharsca"
<[EMAIL PROTECTED]> wrote:
>
>Guys and Gals,
>
>What are you recommendations for a sound card....
>I will be doing MP3s and Games, I want it to be easy to use in Linux w/o any
>major complications,
>Price is no object..
>
>Thanx for your opinions
>
>
------------------------------
From: Randy Cooper <[EMAIL PROTECTED]>
Subject: Saving and Restring and MBR
Date: Sat, 12 Aug 2000 13:18:09 -0500
This is a multi-part message in MIME format.
==============DED29454AA631DF3A7973678
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
I have noticed a lot of questions regarding recovering lost / damaged
Master Boot Records (MBR) lately. So I thought it was about time to
repost this.
You should make a backup copy of your MBR on a bootable floppy disk
before installing Linux and then again after installing Linux.
============================================================
I can suggest two ways that you can back up the Master Boot Record (MBR)
on an
IDE drive under Windows and DOS.
1. Use the Norton Utilities.
2. Use Debug, as found in DOS, it is also available from the DOS prompt
in
Windows/95 so I assume it is also available in Windows/98.
Enter the following commands to save the MBR on the C drive, ignore
the text
after the '<=' on each line as it is only a comment:
DEBUG MBR.DAT <= Ignore the FILE NOT FOUND message
A <= Assemble a program
MOV DX,9000 <= Use segment 9000
MOV ES,DX <= Setup the segment register
XOR BX,BX <= Clear BX to zero
MOV CX,0001 <= Start at track 00 sector 01, the MBR
MOV DX,0080 <= 80=C:, 81=D:, 00=A:, 01=B:
MOV AX,0201 <= Read 1 sector, 02=read
INT 13 <= BIOS disk i/o call
INT 20 <= Return to o/s
<= Press the return key to end program entry
G <= Execute the program
R CX <= Display the value of CX
:200 <= Change the value of CX to decimal 512, size of
MBR
W 9000:00 <= Write the sector stored at address 9000 to
MBR.DAT
Q <= exit DEBUG
If you examine the contents of MBR.DAT using a disk file editor the last
2
bytes must be AA55.
At this point you should copy the MBR to a bootable floppy along with
DEBUG.EXE
This technique may be used to recover the MBR as well, assuming you can
boot
from another device (say a floppy with DEBUG.EXE on it).
Enter the following commands to restore the MBR on the C drive, ignore
the text
after the '<=' on each line as it is only a comment:
DEBUG MBR.DAT <= The file containing the desired MBR, if you
get a
FILE NOT FOUND message type Q immediately! If
you
continue you will write garbage over the MBR.
L 9000:00 <= Load the MBR into memory at this address
A <= Assemble a program
MOV DX,9000 <= The segment address containing the MBR
MOV ES,DX <= Setup the segment address
XOR BX,BX
MOV CX,0001 <= Track 00, sector 01
MOV DX,0080 <= 80=C:
MOV AX,0301 <= Write one sector, 03=write
INT 13
INT 20
<= Press the enter key to stop program entry
G <= Execute the program
Q <= Exit DEBUG
The MBR should now be restored to the C drive, making it bootable.
For more information on this technique for saving and restoring an MBR I
refer
you the book 'The Complete PC Upgrade and Maintenance Guide' by Mark
Minasi,
published by Sybex.
Once you have Linux running you can save the boot record with the
command:
dd if=/dev/hda of=/boot/boot.MBR bs=512 count=1
It can then be restored with:
dd if=/boot/boot.MBR of=/dev/hda bs=512 count=1
or if you do not want/need to overwrite the partition table with:
dd if=/boot/boot.MBR of=/dev/hda bs=446 count=1
as the partition table is kept in the last 66 bytes of the MBR.
DISCLAIMER:
Although I have double checked the above, I cannot be held responsible
for any errors. I suggest you try it on a bootable floppy disk before
using it on a hard drive. If it does not work on a floppy disk let me
know.
BTW: I find it easier to boot Linux from a floppy disk or CD-ROM than to
recover an MBR from DOS. The Slackware 3.5 (or greater) CD-ROM
makes a
good rescue disk if you have a bios that supports bootable CDs.
==============DED29454AA631DF3A7973678
Content-Type: text/plain; charset=us-ascii;
name="mbr.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="mbr.txt"
I can suggest two ways that you can back up the Master Boot Record (MBR) on an
IDE drive under Windows and DOS.
1. Use the Norton Utilities.
2. Use Debug, as found in DOS, it is also available from the DOS prompt in
Windows/95 so I assume it is also available in Windows/98.
Enter the following commands to save the MBR on the C drive, ignore the text
after the '<=' on each line as it is only a comment:
DEBUG MBR.DAT <= Ignore the FILE NOT FOUND message
A <= Assemble a program
MOV DX,9000 <= Use segment 9000
MOV ES,DX <= Setup the segment register
XOR BX,BX <= Clear BX to zero
MOV CX,0001 <= Start at track 00 sector 01, the MBR
MOV DX,0080 <= 80=C:, 81=D:, 00=A:, 01=B:
MOV AX,0201 <= Read 1 sector, 02=read
INT 13 <= BIOS disk i/o call
INT 20 <= Return to o/s
<= Press the return key to end program entry
G <= Execute the program
R CX <= Display the value of CX
:200 <= Change the value of CX to decimal 512, size of MBR
W 9000:00 <= Write the sector stored at address 9000 to MBR.DAT
Q <= exit DEBUG
If you examine the contents of MBR.DAT using a disk file editor the last 2
bytes must be AA55.
At this point you should copy the MBR to a bootable floppy along with DEBUG.EXE
This technique may be used to recover the MBR as well, assuming you can boot
from another device (say a floppy with DEBUG.EXE on it).
Enter the following commands to restore the MBR on the C drive, ignore the text
after the '<=' on each line as it is only a comment:
DEBUG MBR.DAT <= The file containing the desired MBR, if you get a
FILE NOT FOUND message type Q immediately! If you
continue you will write garbage over the MBR.
L 9000:00 <= Load the MBR into memory at this address
A <= Assemble a program
MOV DX,9000 <= The segment address containing the MBR
MOV ES,DX <= Setup the segment address
XOR BX,BX
MOV CX,0001 <= Track 00, sector 01
MOV DX,0080 <= 80=C:
MOV AX,0301 <= Write one sector, 03=write
INT 13
INT 20
<= Press the enter key to stop program entry
G <= Execute the program
Q <= Exit DEBUG
The MBR should now be restored to the C drive, making it bootable.
For more information on this technique for saving and restoring an MBR I refer
you the book 'The Complete PC Upgrade and Maintenance Guide' by Mark Minasi,
published by Sybex.
Once you have Linux running you can save the boot record with the command:
dd if=/dev/hda of=/boot/boot.MBR bs=512 count=1
It can then be restored with:
dd if=/boot/boot.MBR of=/dev/hda bs=512 count=1
or if you do not want/need to overwrite the partition table with:
dd if=/boot/boot.MBR of=/dev/hda bs=446 count=1
as the partition table is kept in the last 66 bytes of the MBR.
DISCLAIMER:
Although I have double checked the above, I cannot be held responsible
for any errors. I suggest you try it on a bootable floppy disk before
using it on a hard drive. If it does not work on a floppy disk let me
know.
BTW: I find it easier to boot Linux from a floppy disk or CD-ROM than to
recover an MBR from DOS. The Slackware 3.5 (or greater) CD-ROM makes a
good rescue disk if you have a bios that supports bootable CDs.
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