Linux-Hardware Digest #46, Volume #11 Thu, 19 Aug 99 05:13:28 EDT
Contents:
Actiontec External Call Waiting Modem (Dan Miller)
Re: Linux file-size limit? (Byron A Jeff)
Re: how to get a fastest linux box ? ("Andrew J. Norman")
Re: WhereToFind? Socket 7 motherboard with onboard ethernet, sound, and video?
(Jon Akers)
Re: Actiontec External Call Waiting Modem (Davin McCall)
Modem Binding (Dood)
Re: SMP: how many processors ??? (Dood)
Re: Diskette Longevity (Richard Petty)
Re: [Q] Parallel port access program permission (YANAGIHARA)
Re: [Q] Parallel port access program permission (YANAGIHARA)
i get a white screen in xwindows, i have a sis 530 card (ZAP)
white screen duing Openlinux 2.2 (ZAP)
Re: How to use Floppy and ZIP driver in Linux Redhat 6.0? (Michael Perry)
Driver for Compaq Easy Access Keyboard (Cuynen Erik)
Re: i get a white screen in xwindows, i have a sis 530 card ("L. Friedman")
Re: NE2000 ISA help (Magnus Ehinger)
Re: white screen duing Openlinux 2.2 (Jordi Backx)
Re: NE2000 ISA help ("Ji-Haw, Foo")
----------------------------------------------------------------------------
From: Dan Miller <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,redhat.config
Subject: Actiontec External Call Waiting Modem
Date: Thu, 19 Aug 1999 01:30:53 GMT
Need a call waiting modem. Have RH Linux 6x installed. Some one told me
that Actiontec external call waiting modem works fine with RH Linux 6x. Is
it true and where I can buy?
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: [EMAIL PROTECTED] (Byron A Jeff)
Crossposted-To: comp.os.linux.misc,comp.os.linuix.setup
Subject: Re: Linux file-size limit?
Date: 18 Aug 1999 23:45:49 -0400
Posted and Mailed to Carlos...
In article <[EMAIL PROTECTED]>, Carlos Collazo <[EMAIL PROTECTED]> wrote:
>I'm trying to backup a 5Gig ext2 partition onto another ext2 partition
>on another hard drive. No matter which software I use, BRU, taper, tar,
>TkZip, etc., I get the same outcome--when the growing archive file
>reaches 2147482624 bytes it stops! The smarter backup software such as
>BRU says to (insert the next volume). When I use tar in the following
>manner:
>
> tar cvZX /root/tarexclude.lst -f /mnt/sdc1/rhonibmide.tar.Z .
>
> I get "write error onstdout file too long, broken pipe"
Yes there is a 2G file limit. Yes it's a PITA. No there is no easy way
to exceed that file limit. But the solution to your problem is simple:
Just split the file into smaller chunks.
tar -cvzf - . | (cd /mnt/sdc1 ; split -b2000M - rhonibmide- )
and you'll get 3 files each less than 2G that comprise your archive.
There has been a raging debate on how to resolve the issue. Clearly there is
a need for larger files with the larger disks becoming commonplace. However
there will be some growing pains to get all the file system code to 64 bits
with the distinct possibility of making new kernels incompatible with
existing systems. So I believe that kernel developers are treading carefully
on how to proceed.
BAJ
------------------------------
From: "Andrew J. Norman" <[EMAIL PROTECTED]>
Subject: Re: how to get a fastest linux box ?
Date: Thu, 19 Aug 1999 04:53:23 GMT
=====BEGIN PGP SIGNED MESSAGE=====
First off your defined your problem as sparse matrix inversion. This is
good in that it lends its self to parrallel implimentations. With this in
mind you most likely want to consider a large SMP machine (most often a
quad Xeon is the best you will be able to do due to a lack of 4+ processor
motherboards) or a large distributed cluster run the appropriate software
protocols (MPI, PVM, etc) Each of these will allow you to substantially
increase your effect computation rate. Remember however that in the case
of an SMP arch you will need to design your code to take advantage of
concurent threads of execution, or in the case of distributed clusters
around a message passing system of some sort.
Additionally you will need to consider equiping the machines with a
significant amount of system memory (memory reqirements for matrix
inversion scale as roughly n**2 although there are notes in some of my
refs regarding an order log(n) inversion process--but I believe the
memory requirement is still essentially n**2) Point is for most work of
this type of work you will want as much memory as your budget will allow.
In terms of actual dealers....try Compaq as they do sell some quad
systems, and have the alpha line (which frankly may be more appropriate
for the work you are planning on doing)
In terms of a topology and hardware that I would recomend--as I have
already said a quad Xeon would be a decent machine. You can build it
yourself, but with the outlay for the processors alone you are probably
better off going through a major chain.
As a second alternative consider a combination of SMP machines in a
distributed cluster--example 16 dual P-III machines in a rack mount
configuration running PVM as their distributed control. This has the
advantage of eliminating the need for disks on each machine as well as
video etc....but does not scale too well for some code.
As a final consideration, choose P-III machines if you can. The new set
of instructions (the new SIMD ops) allow for limited parallel
operations on floats (two single precision at a time) and matrix code will
lend itself to these as you are normally performing repeated multi/add
combinations on the elements (similar improvements can be found by using
the "MMX" extensions when working with integers) The P-II and Celeron
lines do not have these new instructions in their current models.
Remember though that this consideration only applies if you plan on under
taking assembly optimization of your analysis routines (a good task for
any grad student.)
Consider taking a look at the Beowulf project as they have some specs
there and details on their machines.
Andrew J. Norman
______________________________________________________________
Dept. of Physics Phone: xxx-xxx-xxxx
College of William & Mary [EMAIL PROTECTED]
"It is only with the heart that one can see rightly;
what is essential is invisible to the eye" -The Little Prince
______________________________________________________________
On Tue, 17 Aug 1999 [EMAIL PROTECTED] wrote:
> what is the right way to get a fastest linux box ?
> (I mean quad processor or octal processor whatever,
> UDMA-66 disk, etc) is there right box vendor or
> should we have to do it by ourselves ? (I don't mind
> assembling one) If DIY is not the best way, which vendors
> are reliable and good ? If DIY is the best way,
> .. which components are the best ? such as:
>
> motherboard(this may end up with dummy backbone for
> some configuration)
> CPU(intel pII[I][-Xeon] or Celeron ? K6[2|3] or K7 ? Cyrix ? Winchip ?)
> memory if it makes any difference ?
> disk ?
>
> I don't think anything else would make any difference
> in computing speed.
>
> price/performance is also very important. So fancy $30k alpha
> single processor is out of range.
> This machine is going to be used for massive floating point
> number crunching such as huge sparse matrix solving. So no multimedia
> support is necessary.
>
>
> Sent via Deja.com http://www.deja.com/
> Share what you know. Learn what you don't.
>
>
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------------------------------
From: Jon Akers <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,comp.os.linux.portable
Subject: Re: WhereToFind? Socket 7 motherboard with onboard ethernet, sound, and
video?
Date: Wed, 18 Aug 1999 21:07:26 -0700
Simple. He probably wants to build an mp3 player for his car, and this sort
of board would work quite well for playing and updating the mp3's.
As for boards, I know that PC-100 is notorious for making these kinds of
boards. I know that right now they also have a board that you can use
either a Sockey 370 or Slot 1 chip in that has all of these features. I
would go with a low end Socket 370 chip and go to town for this sort of
application.
Shawn Green wrote:
> OK, I need to ask. Why/how are you going to put a computer in your car?
>
> BTW, go to www.atacom.com or www.astak.com. You may be able to find the
> board at one of those places.
>
> Shawn
>
> David Scott Copus wrote:
>
> > I'm looking for a Socket 7 (preferable Super 7) that has *onboard*
> > sound, ethernet, and video. Does anybody recommend any
> > motherboards that have all these features... and can work
> > with Linux?
> >
> > Or... if you know where I can look to find motherboards with all
> > these features... I will gladly accept any suggestions!!
> >
> > Just curious... but would an Intel 166 MMX (socket 7) run _cooler_
> > or _warmer_ than any Pentium II chip? I want to put a computer
> > in my car... and am concerned about heat. :>
> >
> > thanks!
> > Scott.
> > [EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Davin McCall)
Crossposted-To: comp.os.linux.development.apps,redhat.general
Subject: Re: Actiontec External Call Waiting Modem
Date: Thu, 19 Aug 1999 02:58:04 GMT
I just received spam from Actiontec advertising the same product. I
would boycott them if I was you.
Davin.
On Thu, 19 Aug 1999 00:30:50 GMT, Dan Miller <[EMAIL PROTECTED]>
wrote:
>I have Red Hat Linux 6x installed. I want to buy a external call waiting
>modem. Any suggesting? Some one told me that Actiontec External Call
>Waiting Modem works fine with RH Linux 6x, is it true?
>
>------------------ Posted via CNET Linux Help ------------------
> http://www.searchlinux.com
__________________________________________________________
*** davmac - sharkin'!! [EMAIL PROTECTED] ***
my programming page: http://yoyo.cc.monash.edu.au/~davmac/
------------------------------
From: Dood <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,redhat.networking.general
Subject: Modem Binding
Date: Fri, 13 Aug 1999 08:30:57 GMT
ANyone knows how to do modem binding in Linux?
System runs an adsl connection, Mandrake 2.2.9 kernel.
I intend to bind 2 3com 56 modems together as a backup connection.
Any ideeaz?
DOOD
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: Dood <[EMAIL PROTECTED]>
Subject: Re: SMP: how many processors ???
Date: Fri, 13 Aug 1999 08:30:51 GMT
under /usr/src/linun
make config
enable SMP
then make dep, make clean, make bzImage, make modules , make modules
install, copy the new bzImage to /boot
reboot
viola :)
DOOD!
Brian McCullough wrote:
>
> I have not done any multi-processor work with linux, but I have
> an opportunity to do so. I have access to an 8 (yes eight) xenon
> processor box for the next, well at least a couple of weeks.
>
> Problem 1 is I don't know where to go for a multi-processor how-to.
>
> Problem 2, I know they are intel SHVs (?) call saber, but they showed
> up with not documentation and I can not find nothing on the web about
> saber systems.
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: [EMAIL PROTECTED] (Richard Petty)
Crossposted-To: comp.os.linux.misc
Subject: Re: Diskette Longevity
Date: Thu, 19 Aug 1999 04:52:22 GMT
In article <7pejko$2t4$[EMAIL PROTECTED]>, [EMAIL PROTECTED] wrote:
>Hello. I've been using the same floppy disk for the past two
>months, popping it in and out of my drives several times a day
>and transporting nearly everyday.
>
>Yesterday, I couldn't mount the disk because of some bad sector.
>(don't remember the error.) So my guess is the diskette just wore out.
>Fortunately, I still have my stuff on my hard drive.
>
>Now my question is:
>
>1. how long do floppy 1.2MB diskettes last?
>2. Are zip drives more robust?
>3. If a disk has a few bad sectors, is there anyway to recover what
> might be left on the good sectors? (Perhaps none of my data fell
> on the bad sectors) That is, is there some sort of Norton's
> Utilities for Linux?
I don't trust floppy disks anywhere near as far as I can throw them.
Floppies are only a little more reliable than cassette tape recorders for
storing data and not a whole lot faster.
Steve Jobs was right, in spite of all the Wintel complaining, to drop
floppies drives from Macs. Anything is better than floppies, and all those
iMac buyers (close to 2-million this year) seem to be doing nicely without
them.
Maybe there's something to learn there...
When a floppy goes bad, TRASH IT! Like a dog that has bitten, it can NEVER
be trusted again.
Well, that's my rant.
--Richard
(who's lost files on floppies)
--
Spam deterent: Remove the "bogus" part for a correct address.
------------------------------
From: YANAGIHARA <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux,comp.os.linux.development,comp.os.linux.development.apps,comp.os.linux.development.system,comp.os.linux.misc,comp.os.linux.questions
Subject: Re: [Q] Parallel port access program permission
Date: Thu, 19 Aug 1999 14:24:39 +0900
Hello, everybody.
In article <[EMAIL PROTECTED]>,
William Burrow wrote
>Why not trying to read and write from /dev/lp0? Is your parallel port
>not supported?
The device which is connected to parallel port is not
printer. It is a original electronic circuit board of my
own making, so transaction protocol is different to printer.
So I thought that inb/outb oparation is easier than opening
/dev/lp0.
--
Thank you for reading.
Yanagihara
------------------------------
From: YANAGIHARA <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux,comp.os.linux.development,comp.os.linux.development.apps,comp.os.linux.development.system,comp.os.linux.misc,comp.os.linux.questions
Subject: Re: [Q] Parallel port access program permission
Date: Thu, 19 Aug 1999 14:12:13 +0900
Thank you for your answers.
In article <7pf08m$8vd$[EMAIL PROTECTED]>,
Victor Wagner wrote
>Trying to manage some strange parallel port device, aren't you?
Yes. My parallel port device is a board of my own making to
control other experimental hardware. I want to use this
board quickly, and I don't have many hours to learn device
driver programming. So I chose dirty but quickly way.
(But I'm interested in device driver programming. So, some
time, I want to rebuild this program as driver module.)
>2. The quick and dirty way
>
> Read a section about "Changing process persona" in info libc
>
> Make your program setuid root and make call to seteuid(getuid())
> just after calling ioperm.
> Than make your program owned by root and chmod u+s it.
Thanks. I tried chmod command. Other users became to use my
program successfully.
> Of course, having yet another suid-root prog is not good, but
> it would do the job.
I'm understanding this way is dirtier than making kernel
driver module. But, I think chmod oparation is better than
getuid(). Because root can administer permission without
rebuild the program. What do you think about this point ?
--
Thank you for reading.
Yanagihara
------------------------------
From: ZAP <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.x
Subject: i get a white screen in xwindows, i have a sis 530 card
Date: Thu, 19 Aug 1999 05:30:54 GMT
i cannot get my xwindows to work. i have a sis 530 card. how do i fix this
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: ZAP <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.x
Subject: white screen duing Openlinux 2.2
Date: Thu, 19 Aug 1999 05:31:03 GMT
I am having a problem with kde. When i try to install, it goes into a
white screen. Then i have to kill the process. Can anyone tell me what is
wrong?
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: [EMAIL PROTECTED] (Michael Perry)
Crossposted-To: alt.os.linux,comp.os.linux.setup
Subject: Re: How to use Floppy and ZIP driver in Linux Redhat 6.0?
Date: Thu, 19 Aug 1999 06:34:43 GMT
Reply-To: [EMAIL PROTECTED]
On 18 Aug 1999 18:52:25 GMT, Jack Liu <[EMAIL PROTECTED]> wrote:
>Dear Sir,
>I set up the Linux Redhat 6.0 and I can mount the CD-ROM rightly. I can
>find Floppy in Local driver information using Linuxconf. But when I use
>mount -t msdos dev/hd0 /mnt/floppy to mount the floppy, there is an error.
>I have the floppy directory in /mnt. So can you help me to use my floppy
>driver in Linux? I havn't setup PICIA in installing Redhat, How can I use
>the interal ATAPI Zip driver?
>Thank you very much!
>
>Jack
>
Try using the mount command with /dev/fd0 instead of /dev/hd0.
--
Michael Perry - "No one can give you wiser advice
[EMAIL PROTECTED] .o O than yourself" -Cicero
' )
\ Gnome: at www.gnome.org!!
\ _) where happiness is a state of foot.
------------------------------
From: [EMAIL PROTECTED] (Cuynen Erik)
Subject: Driver for Compaq Easy Access Keyboard
Date: 19 Aug 1999 06:23:47 GMT
[posted and mailed]
Hi there,
I intend to install Linux (SuSE 6.1).
My PC is equipped with a (fancy) Compaq keyboard.
(Just some buttons that handle the CD and provide shortcuts; these
buttons can be programmed (in Windows), they are located above the F-keys)
Should I expect troubles?
Will I need special drivers?
Where can I find them?
Tips/solutions are welcome
Bye,
erik [EMAIL PROTECTED]
------------------------------
From: "L. Friedman" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.x
Subject: Re: i get a white screen in xwindows, i have a sis 530 card
Date: Thu, 19 Aug 1999 03:10:31 -0400
Well, you could start by providing quite a bit more info on your
system. Like, the distro you're running, what you've done to get that
far etc. Off the top of my head, i'd say that you prolly don't have the
correct X server for the SiS video card. Go to suse.com and download
their SiS X server. Use that X server, and make sure that you're
inputting the correct specs on your monitor and card.
-L
ZAP wrote:
>
> i cannot get my xwindows to work. i have a sis 530 card. how do i fix this
------------------------------
From: Magnus Ehinger <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,redhat.hardware.arch.intel
Subject: Re: NE2000 ISA help
Date: Thu, 19 Aug 1999 09:30:26 +0200
[EMAIL PROTECTED] wrote:
> I'm installing redhat 6.0 and everytime in the installation it cant
>
> detect my network card. Even when I enter the IRQ and I/O it still doesnt
>
> find it. I have the diagnostic software for the card and do have it set up
>
> correcty. It also works fine in win98. Any suggestion? Thanx!
I had a similar problem with my ethernet card (Cnet 650E+) some time ago. The
solution: It was an "autodetect" Plug'n'play card. I had to disable this
"autodetect" function (from a DOS session), put it into "jumperless" mode and
set it to an appropriate IRQ and IObase. Then it worked fine!
Also check your /etc/modules file. It should contain a line saying "ne
io=0x300" (or whatever IObase you have, and without the quotes of course). If
there are more ethernet card modules installed this might cause some
troubles. (Be careful when editing this file, however, there are differences
between different Linux distribution. This method worked fine for me on
Redhat 5.2.)
/Magnus
--
Magnus Ehinger [EMAIL PROTECTED]
PhD student of molecular biophy- [EMAIL PROTECTED]
sics at the institute of chemistry http://www.df.lth.se/~mehinger
at Lund University, Sweden +46-46-222 45 13
===========================================================(o)=========
"The human mind treats a new idea like the body treats a strange pro-
tein -- it rejects it." /P.B. Medawar, biologist
Turn your pentium into a gameboy! Type "Win" at C:\>
------------------------------
From: Jordi Backx <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.x
Subject: Re: white screen duing Openlinux 2.2
Date: Thu, 19 Aug 1999 09:55:31 +0200
On Thu, 19 Aug 1999, ZAP wrote:
>I am having a problem with kde. When i try to install, it goes into a
>white screen. Then i have to kill the process. Can anyone tell me what is
>wrong?
>
>------------------ Posted via CNET Linux Help ------------------
> http://www.searchlinux.com
I'd REALLY suggest to ask Caldera. I don't know that problem. Installing on my
Compaq went very well.
Caldera (support.calderasystems.com) is very fast in giving solutions (1-2 days)
I hope that works for you.
------------------------------
From: "Ji-Haw, Foo" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,redhat.hardware.arch.intel
Subject: Re: NE2000 ISA help
Date: Thu, 19 Aug 1999 10:23:50 +0200
Chances are your card is a PnP card, and for some reason RH can't detect it.
Disable the PnP and try using modprobe to detect the card.
--
regards,
Foo Ji-Haw
------------------------------
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