Linux-Hardware Digest #465, Volume #13 Tue, 22 Aug 00 21:13:07 EDT
Contents:
Re: Improve Rotational Delay of HDD with Software Only ("Ron Reaugh")
Re: Installing 2nd hard disk ("Peter T. Breuer")
Re: Back-UPS BK650MI (Andrey Vlasov)
Linux 2 PC direct connection ("P S Bhowmick")
Re: Printer In Mandrake ("Noble Pepper")
bad sector ("crow")
Re: Improve Rotational Delay of HDD with Software Only (glen herrmannsfeldt)
How do I set the physical geometry? ("K. Posern")
Re: help on uid/gid of /dev/dsp (Glitch)
Plextor PX-20TSi (Chuck)
Re: ESS 33600 WinModem Modem (Glitch)
Re: Printer In Mandrake (Buchan Milne)
Re: hunting down a SCSI RAID controller (Trent Piepho)
Re: How do I set the physical geometry? (Dances With Crows)
Re: Improve Rotational Delay of HDD with Software Only ("Ron Reaugh")
debian duel boot ("Bill")
Re: bad sector (Garry Knight)
Re: D-Link SN5000TX NIC - looking for drivers (Christoph Horst)
Re: RedHat Annoyance/ide-scsi problems (Duane)
----------------------------------------------------------------------------
From: "Ron Reaugh" <[EMAIL PROTECTED]>
Crossposted-To:
comp.arch.storage,comp.periphs,comp.sys.ibm.pc.hardware.misc,comp.sys.ibm.pc.hardware.storage
Subject: Re: Improve Rotational Delay of HDD with Software Only
Date: Tue, 22 Aug 2000 21:23:50 GMT
Jeff Jonas wrote in message <8nupvt$b53$[EMAIL PROTECTED]>...
>>>> I invented a software technique that improves rotational delay of HDD
> (only at reading). This technique makes HDD's rotational delay time
half
> (only at reading). It needs no additional hardware.
> Load for CPU and memory is little.
>
>>It would require a near OS rewrite. The software would have to know about
>>the geometry of every different HD >MODEL & SIZE & FIRMWARE LEVEL<
>>encountered. Further to make it work the driver would have to keep track
in
>>real time of the rotational position of the disks surface otherwise it's
>>chose the slower version to read half the time.
>
>I'm no expert on file systems but I'm on the way :-)
>
>Except for the old disks (MFM, ESDI, SMD), all disks have buffers and
>are usually given the freedom to delay writing data until they see
>it as optimum. Other than a sync signal for spindle sync,
Which is not externally present on EIDE HDs.
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.help,comp.os.linux.misc
Subject: Re: Installing 2nd hard disk
Date: 22 Aug 2000 21:19:08 GMT
In comp.os.linux.help Stewart Honsberger <[EMAIL PROTECTED]> wrote:
: On 22 Aug 2000 08:58:29 GMT, Peter T. Breuer wrote:
:>: It has everything to do with the state of the disk. Your argument supporting
:>: re-booting after using fdisk was based on having a mounted partition on the
:>: drive.
:>
:>Which has nothing to do with the disk, and everything to do with the
:>person mounting the disk! He's making the partitions precisely in
:>order to mount them in the future. I wasn't going to spend time telling
:>him when in the future he could and could not mount them.
: So instead of telling him the proper way to do things, you give him a band-
: aid solution. If this person does do things the way you suggest and does
: each partition one at a time, he'll be re-booting his system about half a
: dozen times or so!
Errr .... well, maybe. He can also reboot for fun after efter every
command.
: You talk about wasted time and energy telling the guy how to do it properly,
: yet you spend all this time telling everybody about the one extreme case where
: the guy could possibly damage his partition table?
??
: I've written out complete instructions for somebody to add a 2nd HDD in about
: 30 lines or so. I reference man pages, and the occasional HOWTO for further
: assistance.
Good for you!
: People often complain about Usenet not being a helpful, worthwhile place
: to ask for assistance; and even you complained (removed from this quote)
: about message quoting etiquette!
Messiquette. Yes.
: Usenet can only be a valid source of information if people give helpful,
: worthy, straight-forward information rather than complaining and quoting
: could-be's and what-if's.
: In a word, sir, your response was the furthest thing from helpful; and
: the closest thing to further the Usenet stereotypes of worthless responses
: that lead to arguments and/or flame-fests that deter from the original
: topic at hand.
Very nice, but quite removed from any actual facts. There are lots of
things you might be unaware of. Such as, for example, that I was logged
in over a phone line on an expensive daytime connection from a 486 with
8M ram running X with a stuck N key. Those little things make it
imperative to judge how much you are going to say, and how long to take
to say them. My instructions work fine, were helpful and polite and useful.
What are you going on about?
Peter
------------------------------
From: Andrey Vlasov <[EMAIL PROTECTED]>
Subject: Re: Back-UPS BK650MI
Date: Tue, 22 Aug 2000 14:46:03 -0700
==============B0B164FA55500A78414FB83D
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Hi Martin,
I do not have UPS but here UPS-HOWTO and there is some info about APC.
You can just check it.
http://www.linuxdoc.org/HOWTO/UPS-HOWTO.html
http://www.linuxdoc.org/HOWTO/UPS-HOWTO-8.html#ss8.13
Andrey
Martin Helmhout wrote:
> Hey,
>
> Anyone being able to get this type APC UPS talking to a Linux Machine?
>
> Is there a "brilliant" guy or girl who has made this possible?
>
> If (yes
> { What kind a software(tried apcupsd and Powerchute)?
> what kind of cable/cable layout?
> }
>
> Thanks
> Martin
--
== System Development & Support Systems ============================
Andrey Vlassov Phones: +1-(604)-482-5792
+1-(604)-482-5791
E-Mail: [EMAIL PROTECTED] Home: +1-(604)-294-6653
[EMAIL PROTECTED] Pager: +1-(604)-473-1754
====================================================================
==============B0B164FA55500A78414FB83D
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Hi Martin,
<p>I do not have UPS but here UPS-HOWTO and there is some info about
APC. You can just check it.
<p><A
HREF="http://www.linuxdoc.org/HOWTO/UPS-HOWTO.html">http://www.linuxdoc.org/HOWTO/UPS-HOWTO.html</A>
<br><A
HREF="http://www.linuxdoc.org/HOWTO/UPS-HOWTO-8.html#ss8.13">http://www.linuxdoc.org/HOWTO/UPS-HOWTO-8.html#ss8.13</A>
<p>Andrey
<p>Martin Helmhout wrote:
<blockquote TYPE=CITE>Hey,
<p>Anyone being able to get this type APC UPS talking to a Linux Machine?
<p>Is there a "brilliant" guy or girl who has made this possible?
<p>If (yes
<br>{ What kind a software(tried apcupsd and
Powerchute)?
<br> what kind of cable/cable
layout?
<br>}
<p>Thanks
<br>Martin</blockquote>
<p><br>--
<pre>== <font color="#006900">System Development & Support Systems</font>
============================
<font color="#900000">Andrey
Vlassov</font>
Phones: +1-(604)-482-5792
+1-(604)-482-5791
E-Mail: <a
href="mailto:[EMAIL PROTECTED]">[EMAIL PROTECTED]</a>
Home: +1-(604)-294-6653
<a
href="mailto:[EMAIL PROTECTED]">[EMAIL PROTECTED]</a>
Pager: <a href="http://www.bctm.com/bc/paging/pagsend.htm">+1-(604)-473-1754
</a>====================================================================</pre>
</html>
==============B0B164FA55500A78414FB83D==
------------------------------
From: "P S Bhowmick" <[EMAIL PROTECTED]>
Subject: Linux 2 PC direct connection
Date: Tue, 22 Aug 2000 15:07:20 -0700
How can I use a DB25 connector to establish a direct connection b/w Liux &
Win2K, possibly using PPP?
--
Partho
=================================
"Those who can, do,
Those who can't, simulate."
------------------------------
From: "Noble Pepper" <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux.mandrake
Subject: Re: Printer In Mandrake
Date: Tue, 22 Aug 2000 17:09:13 -0600
www.linuxprinting.org
"RLH" <[EMAIL PROTECTED]> wrote:
> I recently acquired a Raven LP-410 Laser Printer and was wondering if
> anyone has had any luck in getting one to work in Mandrake 7.1.
>
> In Windows this printer uses the Panasonic KXP-4410 print driver and
> works perfectly, but I need to know how to get it to work with linux.
> Any suggestions would be greatly appreciated.
>
>
>
------------------------------
From: "crow" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc,uk.comp.os.linux,alt.os.linux
Subject: bad sector
Date: Wed, 23 Aug 2000 00:39:43 +0200
hi,
does anybody know how I can get around a bad sector?
(it's not necessary that I keep my current data)
------------------------------
From: [EMAIL PROTECTED] (glen herrmannsfeldt)
Crossposted-To:
comp.arch.storage,comp.periphs,comp.sys.ibm.pc.hardware.misc,comp.sys.ibm.pc.hardware.storage
Subject: Re: Improve Rotational Delay of HDD with Software Only
Date: 22 Aug 2000 22:32:59 GMT
Thomas Tonino <[EMAIL PROTECTED]> writes:
>NAKAZATO Hajime wrote:
>> I invented a software technique that improves rotational delay of HDD (only
>> at reading).
>> This technique makes HDD's rotational delay time half (only at reading). It
>> needs no additional hardware. Load for CPU and memory is little.
IBM designed a system called RPS, rotational position sensing, in the
1970's where the controller knew the rotational position of the disk
and could use this to speed up I/O operations. This started on the 3330.
-- glen
------------------------------
From: "K. Posern" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: How do I set the physical geometry?
Date: 22 Aug 2000 22:32:34 GMT
Hi.
I've got a IBM 45GB Deskstar DTLA 307045 with CHS=16383/16/63 (printed
on the label of the harddisk).
I suppose these CHS-values are the values of the physical geometry?!
But I don't get linux to show me these values as "physical geometry".
When I type "cat /dev/ide/hdc/geometry" the physical geometry is always:
89355/16/63
The logical geometry vary according to what I passed to the kernel at
boot-time (with "append=" in lilo.conf):
1027/255/63 or 89355/16/63 or 16383/16/63
So is it o.k. that on the harddisk is printed CHS=16383/16/63 and linux
always uses 89355/16/63???
One information on the harddisk-label which could be important on that:
In LBA-mode there are
90 069 840 sectors
I hope someone could help me.
Greetings
Knuth Posern
------------------------------
Date: Tue, 22 Aug 2000 19:07:47 -0400
From: Glitch <[EMAIL PROTECTED]>
Subject: Re: help on uid/gid of /dev/dsp
use the chmod command
man chmod for more info
Arul wrote:
>
> Does anyone know how to setup permissions on sound devices like
> /dev/dsp /dev/audio /dev/sequencer
>
> All the permissions of these devices are set to "rw" to
> the first user (user) logs in as below...
>
> crw------- 1 user root 14, 3 Apr 30 1999 dsp
> crw------- 1 user root 14, 1 Apr 30 1999 sequencer
>
> I would like it to be rw for all users so anyone can
> use the sound devices... like below
>
> crw-rw-rw- 1 root root 14, 1 Apr 30 1999 sequencer
>
> Cheeers.
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
------------------------------
From: Chuck <[EMAIL PROTECTED]>
Subject: Plextor PX-20TSi
Date: Tue, 22 Aug 2000 19:04:33 -0400
Reply-To: [EMAIL PROTECTED]
Howdy -
I've been banging my head against a wall for over a week now,
so if anyone knows of my problem, please help me.
My problem is either with the CD-ROM drive or the Sound Card,
possibly both. The CD-ROM is a Plextor PX-20TSi, the sound
card is an onboard Sound Blaster 16 something or other. Short
explanation - trying to play a CD results in system hang up.
Long explanation: The CD-ROM is an internal, narrow, fast SCSI.
The SCSI board is a BUS Logic something. I've played with the
SCSI-ID settings and it doesn't help. I've removed all other SCSI
devices and jumpered the CD-ROM termination pins. I've recompiled
my kernel with every conceivable combination of SCSI & Sound
settings. I've compiled with no sound card options, and tried to play
CDs through the speaker port on the front of the CD-ROM.
(This works in various other Linux machines that I have running
in which for one reason or another I have no sound card active.)
In _all_ of the above situations, the following happens. When I try to
play a CD, the X-GUI (whichever I choose, they all crash the same)
will appear, and sometimes even identify the CD that is in the drive.
(ie. GWAR - 'Live from Antarctica') The clock will start ticking, but
I will hear no sound. When the clock gets to between 1 and 6 seconds,
depending on the weather outside, the system will hang.
I can mount the CD-ROM drive if a data CD is in, and at least list
the CD directory. I'm not sure if the system would hang or not if
I did enough I/O with the CD-ROM.
Anyway: ideas? recommendations? websites?
Desperately - Chuck
------------------------------
Date: Tue, 22 Aug 2000 19:11:58 -0400
From: Glitch <[EMAIL PROTECTED]>
Subject: Re: ESS 33600 WinModem Modem
only if it has a pctel or lucent chipset
Manuel Jander Jansen wrote:
>
> Hi,
>
> Recently i got a ESS 33.600 Winmodem. Does anybody know if
> its supported by any LinModem driver ??
>
> Thanks.
>
> Please answer to : [EMAIL PROTECTED]
------------------------------
Date: Wed, 23 Aug 2000 01:19:21 +0200
From: Buchan Milne <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux.mandrake
Subject: Re: Printer In Mandrake
Try looking here : http://www.linuxprinting.org/printer_list.cgi
and add you rprinter to the dbase. (I don't see Raven listed as a vendor)
Buchan
RLH wrote:
> I recently acquired a Raven LP-410 Laser Printer and was wondering if anyone
> has had any luck in getting one to work in Mandrake 7.1.
>
> In Windows this printer uses the Panasonic KXP-4410 print driver and works
> perfectly, but I need to know how to get it to work with linux. Any
> suggestions would be greatly appreciated.
------------------------------
From: [EMAIL PROTECTED] (Trent Piepho)
Subject: Re: hunting down a SCSI RAID controller
Date: 22 Aug 2000 16:09:14 -0700
In article <Vhzo5.179897$[EMAIL PROTECTED]>,
Vik Heyndrickx <[EMAIL PROTECTED]> wrote:
>Hi,
>
>I'm looking for a PCI __RAID__ U2W-SCSI (160/m) host adapter, which is
>beyond any problem supported by a recent linux 2.2 kernel.
We've had a system with mylex DAC960 RAID controller for some time, and have
had no troubles with it. I plan on upgrading it soon to a Mylex extremeraid
1100 with 3 channels. These are the cards VA Linux uses for their systems.
If you want ultra160 SCSI, mylex makes one and two channel acceleraid cards,
and the four channel extremeraid 2000. These are all supported by the very
stable linux dac960 driver. I don't think the 2000 is avialable yet,
everywhere I've looked it shows up as back-order or pre-order.
------------------------------
From: [EMAIL PROTECTED] (Dances With Crows)
Crossposted-To: comp.os.linux.setup
Subject: Re: How do I set the physical geometry?
Date: 23 Aug 2000 00:00:16 GMT
Reply-To: [EMAIL PROTECTED]
On 22 Aug 2000 22:32:34 GMT, K. Posern wrote:
>I've got a IBM 45GB Deskstar DTLA 307045 with CHS=16383/16/63 (printed
>on the label of the harddisk).
>I suppose these CHS-values are the values of the physical geometry?!
[snip]
>One information on the harddisk-label which could be important on that:
>In LBA-mode there are 90 069 840 sectors
Modern hard disks do not have anything like a physical geometry in the
old-style sense of the term. That "16383/16/63" printed on the drive is
shorthand for "This disk is too big for the ancient disk-size-reporting
method that BIOS 'normal mode' used back in the day."
What exactly is the problem that requires you to pass geometry arguments
to the kernel at boot time? Is your machine's BIOS so old that it can't
be upgraded to something that can handle large disks? Machines built
after 1997 or so should have no problems with most disks. If the BIOS
is too old, you can probably find out what the Linux kernel thinks the
geometry of the disk is by booting from a rescue system like Tom's
RootBoot (http://www.toms.net/rb/ ) and running "fdisk". That will say
something like:
Disk /dev/hda 255 heads, 63 secotrs, 5606 cylinders
Also, Linux kernels prior to 2.2.14 had problems with accessing IDE
disks > 32G. See if you can get a newer kernel--RH 6.2, SuSE 6.4,
Mandrake 7.1, et al shipped with kernels capable of handling IDE disks
up to 137G.
--
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: "Ron Reaugh" <[EMAIL PROTECTED]>
Crossposted-To:
comp.arch.storage,comp.periphs,comp.sys.ibm.pc.hardware.misc,comp.sys.ibm.pc.hardware.storage
Subject: Re: Improve Rotational Delay of HDD with Software Only
Date: Wed, 23 Aug 2000 00:24:11 GMT
glen herrmannsfeldt wrote in message <8nuv2r$[EMAIL PROTECTED]>...
>Thomas Tonino <[EMAIL PROTECTED]> writes:
>
>>NAKAZATO Hajime wrote:
>
>>> I invented a software technique that improves rotational delay of HDD
(only
>>> at reading).
>>> This technique makes HDD's rotational delay time half (only at reading).
It
>>> needs no additional hardware. Load for CPU and memory is little.
>
>IBM designed a system called RPS, rotational position sensing, in the
>1970's where the controller knew the rotational position of the disk
>and could use this to speed up I/O operations. This started on the 3330.
Current SCSI HDs with command queuing do a much more sophisticated job of
that but only for a single drive's queue.
------------------------------
From: "Bill" <[EMAIL PROTECTED]>
Subject: debian duel boot
Date: Tue, 22 Aug 2000 19:26:21 -0500
I want to dual boot Debian Linux Potato 2.2 with Windows 98 Second Edition.
I currently have a system dual booting RH 6.2 with Windows 98 SE. I have
two hard drives one for each OS. I want to remove RH and put in Debian.
How do I do this without interupting LILO/ the boot process?
Thanks.
------------------------------
From: Garry Knight <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc,uk.comp.os.linux,alt.os.linux
Subject: Re: bad sector
Date: Wed, 23 Aug 2000 01:16:42 +0100
On Tue, 22 Aug 2000, crow wrote:
>does anybody know how I can get around a bad sector?
>(it's not necessary that I keep my current data)
In a taxi. Oh, what's that? You mean your hard disk? :o)
$ man badblocks
--
Garry Knight
[EMAIL PROTECTED]
------------------------------
From: Christoph Horst <[EMAIL PROTECTED]>
Subject: Re: D-Link SN5000TX NIC - looking for drivers
Date: Wed, 23 Aug 2000 03:05:04 +0200
Christoph Horst wrote:
> ... but I have no drivers for linux...
I gave up and bought myself a nice Genius-something with Realtek 8139
chip :)
--bashar
------------------------------
From: Duane <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: RedHat Annoyance/ide-scsi problems
Date: Tue, 22 Aug 2000 17:15:55 -0700
"K. Bruner" wrote:
>
> This probably qualifies as venting, as I realize that I am very
> frustrated and impatient, but so be it.
>
> I have a PC. Up until last month, I was running RedHat 6.0, relatively
> problem-free. I had purchased an IDE HP CD-RW 8200 series drive, which,
> with maybe an hour of tinkering, two at the most, I got working under the
> ide-scsi module so I could use cdrecord. Worked wonderfully.
>
> So, I "upgrade" to RH 6.2, and for the life of me, I cannot get the
> ide-scsi module to give a damn about the drive. The module loads, but
> just ignores the drive. I have tried using the same lilo.conf and
> modules.conf as I did before, and have recompiled the kernel with various
> permutations of SCSI stuff as modules or compiled into the kernel, but
> nada.
>
> That is not the total purpose of my venting, however. I bought the RH
> 6.2 Standard Edition, and since I hadn't had any trouble with the initial
> 6.2 installation, I hadn't activated my 90 days installation support. After
> spending this past Saturday tearing my hair out, I activated the support
> Sunday morning. I "register" and enter my registration number, and it
> says, "Hi, K! You have 6.2 Standard Edition..." But it won't let me use
> the web access to submit a problem. I run all over the site and finally
> see some small print saying that I should wait 45 minutes for the account
> to kick in, even though it looked like it had already figured out that I
> was logged into the account. So, I wait an hour. Then two. Then
> several. Nada.
>
> Then I send mail to the web site support address outlining my quandary.
> This was, of course, Sunday, so I knew I had to be a little patient. I
> get up this morning and I'd gotten email that my support account was all
> set up and working, and, yes, it was! So I enter my problem through the
> web page and it seems to take it fine. So, I go to work, and "log" into
> the support page to check on the ticket's progress, and it tells me my
> ticket it closed because, "once you have recompiled your kernel there
> isn't much installation support can do." They also tell me to look at the
> CD-RW how-to that I have already looked at, once, successfully under 6.0,
> and then, very unsuccessfully, under 6.2. Also, they say this would be a
> great problem to take to a newsgroup!
>
> I'm not really looking for hints on getting the drive working at this
> point. I am, however, very frustrated and annoyed.
>
> I'm about 5 inches from buying SUSE or Caldera on my way home from work.
I agree that activating the official RH support seems to be unnecesarily
complicated. A definite disincentive for actually buying Redhat. But
since you already have it... :-)
I have to admit I somewhat sympathize with RH not supporting custom
kernels. I don't know why they did not simply tell you that you do not
need to recompile the kernel in RH 6.2 to use ide-scsi (I also purchased
the standard edition). You just need to put a:
append="hdc=ide-scsi"
into your /etc/lilo.conf file, and in /etc/rc.d/rc.local add:
modprobe ide-scsi
I never figured out entries in modules.conf that worked. The typical
ones like:
alias scsi_hostadapter ide-scsi
did not work for me, which is why I just loaded the module from
rc.local.
--
My real email is akamail.com@dclark (or something like that).
------------------------------
** FOR YOUR REFERENCE **
The service address, to which questions about the list itself and requests
to be added to or deleted from it should be directed, is:
Internet: [EMAIL PROTECTED]
You can send mail to the entire list (and comp.os.linux.hardware) via:
Internet: [EMAIL PROTECTED]
Linux may be obtained via one of these FTP sites:
ftp.funet.fi pub/Linux
tsx-11.mit.edu pub/linux
sunsite.unc.edu pub/Linux
End of Linux-Hardware Digest
******************************
