Linux-Hardware Digest #606, Volume #14 Wed, 11 Apr 01 14:13:12 EDT
Contents:
PLIP / SuperSLIP / whatever (SammyTheSnake)
Modem problem (and no.. not a winmodem prob!!) ("Craig Tinson")
Re: Disk Block Size ([EMAIL PROTECTED])
make config ("ja")
HPT370 Driver Request (Emyr James)
I have add ligne append on lilo.conf (Yves Le Floch)
Re: anybody using Ultrium (LTO) tape drives? ("chicorp")
Re: anybody using Ultrium (LTO) tape drives? ("James Hutchins")
Re: Via + Maxtor + kernel 2.4.3 = crash? (Kelledin Tane)
Re: Disk Block Size (Eric P. McCoy)
tar of dot.files ("SW")
Re: tar of dot.files ("Jason C. Hill")
Re: SCSI issue with two cards ("Peter T. Breuer")
Re: Linux on Intel Or Celeron? what is the best choice? ("Peter T. Breuer")
Re: tar of dot.files ("SW")
Re: Help, Need a SCSI expert Urgently (Karl-Heinz Herrmann)
Re: ide cdrw kills my system (Walter Francis)
Re: Help, Need a SCSI expert Urgently (jazbo)
Re: Looking for Phoneline networking help (Aaron)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (SammyTheSnake)
Crossposted-To: comp.os.linux.misc, uk.comp.os.linux
Subject: PLIP / SuperSLIP / whatever
Date: Wed, 11 Apr 2001 14:40:46 +0100
I was just playing around with some ideas in my head and came across some
confusion in the kernel sources (exactly the same in 2.2.19 and 2.4.3) and
thought I'd throw it into the melting pot :)
according to linux/Documentation/networking/PLIP.txt there are two kinds of
PLIP cable, mode 0 which uses 4 data lines connected to the status lines at
the far end, and mode 1 which uses 8 data lines and assumes a bidirectional
port. linux/drivers/net/plip.c, however, mentions only one kind of cable,
the mode 0 one. I'd be inclined to believe the comments in the source code
as more reliable, but I'd love to get that double bandwidth, too! Presumably
the following comment from plip.c is relevant
/*
* Original version and the name 'PLIP' from Donald Becker <[EMAIL PROTECTED]>
* inspired by Russ Nelson's parallel port packet driver.
*
* NOTE:
* Tanabe Hiroyasu had changed the protocol, and it was in Linux v1.0.
* Because of the necessity to communicate to DOS machines with the
* Crynwr packet driver, Peter Bauer changed the protocol again
* back to original protocol.
*
* This version follows original PLIP protocol.
* So, this PLIP can't communicate the PLIP of Linux v1.0.
*/
but I'm pretty sure that PLIP.txt is more recent than Linux v1.0 (seems to
be dated 7 sept 1999 in the 2.4.3 distro and May 21 1998 in 2.2.19, but I
don't think that's the authoring date, err...) and anyway, why get rid of
the option of a turbocharged PLIP, if we have the option of using the slower
more compattible one just by changing configurations?
I'm frankly confused!
OTOH, while I was pondering this, the though crossed my mind that it might
be possible to do something simliar to the mode 0 PLIP trick on a serial
line, given that the status lines on a serial port are all software
settable and that a null modem cable will work quite happily (if not
optimally) without using them, could we not do something like the following?
(pin numbers for a 9 pin port)
Pin Computer A Computer B
3 TxD Transmit Data --> RxD pin 2 Data bit 1 A -> B
2 RxD Receive Data <-- TxD pin 3 Data bit 1 B -> A
7 RTS Request To Send --> CTS pin 8 Data bit 2 A -> B
8 CTS Clear To Send <-- RTS pin 7 Data bit 2 B -> A
4 DTR Data Terminal Ready --> DSR pin 6 Data bit 3 A -> B
6 DSR Data Set Ready <-- DTR pin 4 Data bit 3 B -> A
5 GND Signal Ground <-> GND pin 5
Thus giving 3 bit full-duplex transfer over serial ports.
thoughts?
Cheers & God bless
SammyTheSnake
--
Sam.Penny @ Ntlworld.com | Looking for a computer related
Linux, Hardware & Juggling specialist :-) | If you can help, e-mail me :)
Wheels: bike, 'ickle bike, and unicycle. | /o \/
Boxen: K6-266@300, dual Celery500 & Nx486 | \__/\
------------------------------
From: "Craig Tinson" <[EMAIL PROTECTED]>
Subject: Modem problem (and no.. not a winmodem prob!!)
Date: Wed, 11 Apr 2001 13:42:52 GMT
I bought a new (external) modem last week.
I've never heard of this company that it's from - and finding out who that
was took some doing (I had to do a search on their FCC code!) - and for the
first 24 hours it seemed to work..
Now, however, it doesn't.. from what I can gather it seems to have lost the
ability to communicate to my machine.. kind of.
If I do, for example, an "echo atz > /dev/ttyS1" then I see the lights on
the modem flash.. which unless I've completely lost the plot means it's at
least able to see my machine and vice versa.
However, an AT commands will not do what they are meant to.. ie ATDTxxxxx
etc will not dial.. ATF will not reset the modem.. (btw, windows will
recognise it's their but says it ain't responding - just an aside as I just
thought of it) etc etc..
So I'm stumped.. I've emailed the manufacturers (in Taiwan) and got no
response.
I bought the modem while on holiday at the coast (about 200 miles away) so I
can't exactly take it back..
Anyone any ideas?
Cheers
Craig.
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Disk Block Size
Date: Wed, 11 Apr 2001 13:57:09 GMT
On Mon, 9 Apr 2001 21:33:38, John Thompson
<[EMAIL PROTECTED]> wrote: WEEKDAY
#"Eric P. McCoy" wrote:
#
#> > Not always small filesystems, either. OS/2's HPFS uses 1-block
#> > (512-byte) "clusters" for partition sizes up to 64GB.
#
#> Weird. How's it do that? That stupid fragment trick, or just larger
#> block counters?
#
#Larger counter. It's not a FAT-based filesystem either, so the
#directory structures are free to grow as needed.
#
HPFS also rarly needs defraging.
I cannot believe that other new file systems still need defraging
after all these years.
--
Remove -zamboni to reply
All the above is hearsay and the opinion of no one in particular
------------------------------
From: "ja" <[EMAIL PROTECTED]>
Subject: make config
Date: Wed, 11 Apr 2001 21:58:56 +0800
my system redhat7.0
kernel 2.2.16
I extract pcmcia-cs-3.1.15 at /usr/src/linux
make config
why can I input "/usr/src/linux" as my linux source directory?
configuration failed appear~
why?????????
[EMAIL PROTECTED]
------------------------------
From: Emyr James <[EMAIL PROTECTED]>
Subject: HPT370 Driver Request
Date: Wed, 11 Apr 2001 15:05:41 +0100
Please can some nice driver guru sort out raid support for an ABIT KT7
RAID mobo (very popular board) ?
Win2K handles it fine, surely it must be possible to get Linux to do it
properly as well...or are there some complications ?
Is there support for this in the pipeline ?
Any news appreciated.
------------------------------
From: Yves Le Floch <[EMAIL PROTECTED]>
Subject: I have add ligne append on lilo.conf
Date: Wed, 11 Apr 2001 14:56:25 +0200
I have to add a line "append" on the lilo.conf of a diskette boot to
specify the
parameters of the hard disk. Unfortunately he does not want to run
Must I rebuild the diskette to validate this modification (How can I
do) Or the Pb is it elsewhere.
here the contents of the lilo.conf
boot=/dev/fd0
timeout=100
message=/boot/message
prompt
image=/vmlinuz-2.2.14-5.0
append="ide0=0x1fd0,0x3f6,14 ide1=0xb000,0xb402,15"
label=linux
root=/dev/hdc2
--
Yves Le Floch
LMSGC CNRS/LCPC UMR113
2 All�e Kepler
77420 Champs sur Marne
[EMAIL PROTECTED]
Tel 01.40.43.54.55
Fax 01.40.43.54.50
------------------------------
From: "chicorp" <[EMAIL PROTECTED]>
Crossposted-To: comp.sys.sun.hardware,comp.arch.storage
Subject: Re: anybody using Ultrium (LTO) tape drives?
Date: Wed, 11 Apr 2001 11:02:44 -0400
"Michal Szymanski" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Hi,
>
> We are thinking about purchasing Ultrium (LTO) tape drives to
> store the data coming from our CCD camera (~20 GB/day).
>
> I'd be interested in hearing anything from real users (not
> only from manufacturers' WWW pages :), especially those working
> in Linux and/or Solaris environments.
>
> Any comments regarding OS compatibility, performance, reliability etc.
> Whose drives are best (HP, Seagate, ...). Any info will be apprciated.
>
> regards,
>
> Michal.
>
> --
> Michal Szymanski ([EMAIL PROTECTED])
> Warsaw University Observatory, Warszawa, POLAND
------------------------------
From: "James Hutchins" <[EMAIL PROTECTED]>
Crossposted-To: comp.sys.sun.hardware,comp.arch.storage
Subject: Re: anybody using Ultrium (LTO) tape drives?
Date: Wed, 11 Apr 2001 11:07:38 -0400
Our lto config is attached to a linux box with seagate drives. Very fast -
moving about 350 gig to an lto library from Plasmon. Good tech support too.
"Michal Szymanski" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Hi,
>
> We are thinking about purchasing Ultrium (LTO) tape drives to
> store the data coming from our CCD camera (~20 GB/day).
>
> I'd be interested in hearing anything from real users (not
> only from manufacturers' WWW pages :), especially those working
> in Linux and/or Solaris environments.
>
> Any comments regarding OS compatibility, performance, reliability etc.
> Whose drives are best (HP, Seagate, ...). Any info will be apprciated.
>
> regards,
>
> Michal.
>
> --
> Michal Szymanski ([EMAIL PROTECTED])
> Warsaw University Observatory, Warszawa, POLAND
------------------------------
From: Kelledin Tane <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.questions,comp.os.linux.development.system,comp.os.linux.misc
Subject: Re: Via + Maxtor + kernel 2.4.3 = crash?
Date: Wed, 11 Apr 2001 09:30:50 -0500
I tend to think your configuration may have trouble doing IDE DMA at its
maximum specced speed. This wouldn't be the first time VIA chipsets have had
this problem. I'd suggest first trying it with DMA disabled (this will
severely hurt performance btw). If this works, then you might try looking
around for some means of enabling DMA at manually restricted speeds (i.e. try
ATA33, then ATA66, then ATA100).
As for ReiserFS, it is currently in production. It was merged with the 2.4.1
kernel; it's been running without any problems on my crashbox.
Kelledin, the Dreaming Minstrel
http://kelledin.tripod.com/scovsms.jpg
------------------------------
Subject: Re: Disk Block Size
From: [EMAIL PROTECTED] (Eric P. McCoy)
Date: 11 Apr 2001 11:58:01 -0400
[EMAIL PROTECTED] writes:
> HPFS also rarly needs defraging.
It seemed to be even better about it that ext2fs, although that might
be due to the large difference in partition sizes (540MB vs 60GB).
> I cannot believe that other new file systems still need defraging
> after all these years.
Well, an FS which works by appending data (possibly like VMS's FS)
would probably fragment badly when it has to wrap below the watermark.
Since the append-only thing is apparently a feature in logging
filesystems, that might explain it.
Might. I'm guessing.
--
Eric McCoy <[EMAIL PROTECTED]>
"Knowing that a lot of people across the world with Geocities sites
absolutely despise me is about the only thing that can add a positive
spin to this situation." - Something Awful, 1/11/2001
------------------------------
From: "SW" <[EMAIL PROTECTED]>
Crossposted-To:
alt.comp.linux,comp.os.linux.help,comp.os.linux.questions,comp.os.linux.security
Subject: tar of dot.files
Date: Wed, 11 Apr 2001 17:04:31 +0100
Hi,
I need to do a backup of user files with tar, including
the configuration files beggining with dot, but I'm not
finding thr right option of the tar command.
Any help out there?????
Thanks.
------------------------------
From: "Jason C. Hill" <[EMAIL PROTECTED]>
Crossposted-To:
alt.comp.linux,comp.os.linux.help,comp.os.linux.questions,comp.os.linux.security
Subject: Re: tar of dot.files
Date: Wed, 11 Apr 2001 12:07:25 -0400
If the user directories are in home. As root do this:
cd /home
tar cf user_name.tar user_name
There ya go. It creates the backup of the persons entire directory and
everything in it, including dot files.
-J
"SW" <[EMAIL PROTECTED]> wrote in message
news:9b1vfj$uba$[EMAIL PROTECTED]...
> Hi,
>
> I need to do a backup of user files with tar, including
> the configuration files beggining with dot, but I'm not
> finding thr right option of the tar command.
>
> Any help out there?????
>
> Thanks.
>
>
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: SCSI issue with two cards
Date: Wed, 11 Apr 2001 17:53:16 +0200
Don Gingrich <[EMAIL PROTECTED]> wrote:
> Michael Meissner wrote:
>> "Peter T. Breuer" <[EMAIL PROTECTED]> writes:
>> > Don Gingrich <[EMAIL PROTECTED]> wrote:
>> > If both drivers are in the kernel, then you will always get one
>> > installed before the other CONSISTENTLY, since you have different
>> > dirvers, and the kernel can only load one at a time, and it cannot do
>> > two things at once.
>> >
>> > So you have no problem.
>>
>> Until you change your kernel. Linux 2.4 uses a different order to initialize
>> scsi adapters than 2.2 did.
> Unfortunately this the precise issue. I am trying to
> upgrade to the 2.4 kernel -- for IP masquerading among
Then perhaps you should say so. You have taken a long time to come out
with this very basic fact!
> other reasons. And, since my boot disk is SCSI the order
> that the cards are "seen" is vitally important. A
Put your boot disk controller driver in the kernel. That's the only one you
need. The rest you load as modules in the order that YOU want.
Peter
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux,alt.os.linux
Subject: Re: Linux on Intel Or Celeron? what is the best choice?
Date: Wed, 11 Apr 2001 17:51:00 +0200
In comp.os.linux.hardware dionysus <[EMAIL PROTECTED]> wrote:
> <SNIP>
>>it seems
>>that celerons are fine in workstations, but lack a few things in server
>>situations
> Exactly what is it that they do lack? I thought they only had a
> smaller cache with a smaller bandwidth path between it and the cpu?
(WHICH celeron and WHICH pentium is a question that needs answering
first, but ...)
No, they have (had) a larger "bandwidth path"! The cache was smaller,
that's really all. The technology used was better.
Peter
------------------------------
From: "SW" <[EMAIL PROTECTED]>
Crossposted-To:
alt.comp.linux,comp.os.linux.help,comp.os.linux.questions,comp.os.linux.security
Subject: Re: tar of dot.files
Date: Wed, 11 Apr 2001 17:25:43 +0100
Hi, hi, hi,
Dummy, (that's me...)
Of course....
Forget it !!!
"SW" <[EMAIL PROTECTED]> wrote in message
news:9b1vfj$uba$[EMAIL PROTECTED]...
> Hi,
>
> I need to do a backup of user files with tar, including
> the configuration files beggining with dot, but I'm not
> finding thr right option of the tar command.
>
> Any help out there?????
>
> Thanks.
>
>
------------------------------
From: Karl-Heinz Herrmann <[EMAIL PROTECTED]>
Subject: Re: Help, Need a SCSI expert Urgently
Date: 11 Apr 2001 18:29:13 +0200
jazbo <[EMAIL PROTECTED]> writes:
> Still, what I see is the drive light go red after trying to mount the disc,
> then green again as it tries a second time, then red again, then it flashes
> red and green quickly.
>
> What should I try to get this thing working?
Drive never starts the disk but the read command seems to reach the
drive (leds)? I would say "hardware failure"....
BTW, you can mix SCSI-1, SCSI-2 and SCSI-3[/MMC] without problems. I
would be a little more careful in mixing external SCSI scanners wich
use a 25 pin SUB-D connector -- they seem to give headaches.
But still -- on inserting a CD it should spin up and do its detection
and on a mount it should make a read access (LEDS) and the disk should
spin up again. If the LED comes on the read arrived and if then the
disk does not spin up something is messed up in the CD(RW).
K.-H.
--
===================================
Karl-Heinz Herrmann
E-Mail: [EMAIL PROTECTED]
===================================
------------------------------
From: Walter Francis <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: Re: ide cdrw kills my system
Date: Wed, 11 Apr 2001 13:09:46 -0400
[EMAIL PROTECTED] wrote:
> I'm getting tempted into returning my IDE plextor 12/10/32 cdwriter to my
> windoze machine just so that it'll have a decidated processor.
> It runs faster on my linux box, but *kills* it. Opening a window normally takes
> about 1/5th of a second; with the reader running, the same operation takes the
> better part of a minute.
Well, I have exact same drive and it slows the machine down slightly
when it's doing the OPC and fixating (expecially fixating) but nowhere
near what you're describing. Mouse input stutters a little bit, windows
refresh slower (perhaps 2 seconds to refresh Netscape) but while it's
doing the actual burning the machine isn't slowed down much at all.
I just have a PII 400, 320M of ram.. DMA is definately off on my
system, as I have a flakey VIA chipset.
--
Walter Francis
http://theblackmoor.net Powered by Red Hat Linux 7.0
------------------------------
From: jazbo <[EMAIL PROTECTED]>
Subject: Re: Help, Need a SCSI expert Urgently
Date: Wed, 11 Apr 2001 13:46:38 -0400
Karl-Heinz Herrmann wrote:
> jazbo <[EMAIL PROTECTED]> writes:
>
> > Still, what I see is the drive light go red after trying to mount the disc,
> > then green again as it tries a second time, then red again, then it flashes
> > red and green quickly.
> >
> > What should I try to get this thing working?
>
> Drive never starts the disk but the read command seems to reach the
> drive (leds)? I would say "hardware failure"....
>
> BTW, you can mix SCSI-1, SCSI-2 and SCSI-3[/MMC] without problems. I
> would be a little more careful in mixing external SCSI scanners wich
> use a 25 pin SUB-D connector -- they seem to give headaches.
>
> But still -- on inserting a CD it should spin up and do its detection
> and on a mount it should make a read access (LEDS) and the disk should
> spin up again. If the LED comes on the read arrived and if then the
> disk does not spin up something is messed up in the CD(RW).
>
> K.-H.
>
> --
> -----------------------------------
> Karl-Heinz Herrmann
> E-Mail: [EMAIL PROTECTED]
> -----------------------------------
OK, this is very good news, thanks. I am often quick to start blaming
hardware when I can't get something going and I've sort of learned to
distrust
my own conclusions.
I just tried to see what the drive does by itself without the OS trying
to mount it:
Put in a known good iso9660 cdrom disc.
Drive LED is red for almost a second after tray door closes.
Then it turns green.
No spin up sound. About 15 seconds later the LED turns red for a couple
of seconds.
Then it's back to green and it stays green for maybe ten seconds, then
it turns red for a second.
It goes through a couple more cycles of being green and then showing a
red LED for a couple of seconds.
Then it starts flashing green and red very rapidly. There's never been a
sound of the drive spinning up.
During this period there's no "supermount" activity from the OS since it
isn't supported in my kernel. The sr_mod and the sg modules aren't
loaded.
The driee exactly does the same thing if sg and sr-mod are loaded
however.
This is definitely a defective drive, then?
Thanks Again.
------------------------------
From: Aaron <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking
Subject: Re: Looking for Phoneline networking help
Date: Wed, 11 Apr 2001 12:59:02 -0500
I was not told of any other vendors. I am having a heck of a time
trying to get anything from Linksys. They keep giving me short one
line email about not supporting Linux. I am about ready to beg and
plead with the person at Broadcom so see if they could email it to me.
On Tue, 03 Apr 2001 23:45:35 GMT, "Glenn Blinckmann"
<[EMAIL PROTECTED]> wrote:
>I'm hoping that NetGear picks up the drivers and posts them as well. I've
>got two PA301 cards standing between me and networking with Linux.
>
>Glenn
>
>"Aaron" <[EMAIL PROTECTED]> wrote in message
>news:[EMAIL PROTECTED]...
>> I was told by someone at Broadcom that they have developed Linux
>> drivers. However they do not want to handle support to they have
>> provide the drivers to Linksys. The trouble is Linksys seems less
>> than willing to post them. I have had several unsuccessful email
>> request to them.
>>
>>
>> On Fri, 30 Mar 2001 01:09:14 -0800, Frédérique Vernhes
>> <[EMAIL PROTECTED]> wrote:
>>
>> >Thanks for the info - I have had to correct my decision on using the
>Linksys bridge,
>> >as it only handles 1Mbps phoneline network. Instead, I will go with the
>netgear
>> >bridge. I have also decided to get a router/firewall so that all my boxes
>are behind
>> >a separate firewall + I hope to be able to add some wireless laptops in
>the end.
>> >
>> >Frederique.
>> >
>> >Aaron wrote:
>> >
>> >> As far as I am aware there is no support yet for cards based on the
>> >> PNA2.0 standard. These cards are based on the broadcom chip. No card
>> >> manufacturers have written Linux drivers for these cards.
>> >>
>> >> You can get an older card based on the older PNA 1meg standard. I
>> >> believe people have gotten the card from AMD to work and maybe the
>> >> Diamond card. PNA 2.0 cards are supposed to be backward compatible.
>> >> I keep hoping for drivers though (fingers crossed).
>> >>
>> >> On 15 Mar 2001 12:41:51 -0500, Michael Meissner <[EMAIL PROTECTED]>
>> >> wrote:
>> >>
>> >> >enkidu <[EMAIL PROTECTED]> writes:
>> >> >
>> >> >> Frédérique Vernhes wrote:
>> >> >> >
>> >> >> > - I have 2 other Pentium running Win 98. These 2 pentiums
>> >> >> > are networked using our home phoneline. We used Linksys
>> >> >> > USB phoneline network adapters. Works great.
>> >> >> >
>> >> >> How do these work? Do they send IP packets over the phone
>> >> >> wires, probably using a different pair to the phones? How
>> >> >> do you connect them to the Internet?
>> >> >
>> >> >As I understand it, they use the same 2 pair as your phone lines, but
>use a
>> >> >frequency above or below human speech, so that it can coexist on the
>same wire.
>> >> >DSL is sent the same way, which is why you have all the restrictions
>about who
>> >> >can get DSL (ie, length from office, only travelling over copper wire,
>etc.).
>> >> >The encoding within the frequency should be the same as ethernet
>normally uses
>> >> >over UTP (unshielded twisted pair). Because of using part of the
>frequency
>> >> >spectrum, and the fact that voice grade wiring is cat3 (and even then
>in the
>> >> >real world you probably have a lot of sub-cat3 wiring) and not cat5
>spec (which
>> >> >100Mbs uses), is why you you only get 10Mbs max. Also going over a
>USB
>> >> >connection is another potential bottleneck to speed. Obviously, if
>you only
>> >> >use a home network for sharing an internet connection, than it won't
>matter
>> >> >that you can only get 10Mbs, unless you have a T3 connection to your
>house.
>>
>
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