Linux-Hardware Digest #455, Volume #14 Thu, 8 Mar 01 12:13:06 EST
Contents:
Re: Question: setup cable modem, Linux and Windows (Kevin Duckett)
Re: Processor ID (Kasper Dupont)
Re: Processor ID (Arne Driescher)
Re: Linux Modem ("Richard Hockey")
Re: laser printer for Linux (Stefano Ghirlanda)
Re: e2fsck -fy /dev/... does not correct an error (Karl-Heinz Herrmann)
Harddisk for Linux ("Jerry Wong")
Have anyone used Onstream IDE DI30 tape drive? ("Guillaume")
Re: Harddisk for Linux (Rolf Magnus)
Re: Processor ID (Kasper Dupont)
Problem with interrupt of SCSI controller and ncr53c8xx module ("Dr. Guenter
Schmidt")
Re: Harddisk for Linux (Mark Bratcher)
Re: Can't access NIC under Slackware 7.2 -NEWBIE- (John Culleton)
Re: Harddisk for Linux (Mark Hahn)
Re: Processor ID (Arne Driescher)
Optimizing Kernel & System for AMD Durons (Lacky)
BP6 + EC10 upgrade + linux report (Tim Moore)
Re: wish to purchase new motherboard and ram - recommendations? (Patrick F Harris)
Re: Tape drive for Linux (Philip Hirschhorn)
----------------------------------------------------------------------------
From: Kevin Duckett <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,comp.os.linux.misc
Subject: Re: Question: setup cable modem, Linux and Windows
Date: Thu, 08 Mar 2001 13:18:28 GMT
DSL/CABLE ROUTER -->
CABLE MODEM (cross over cable to modem, if required)
LINUX MACHINE (patch cable to router)
WINDOWS MACHINE (patch cable to router)
Set IP forwarding to the open ports on Linux machine so you can make
those servives available.
De Roeck Software wrote:
>
> What about:
>
> cablemodem -- Linux -(crossed cable)- Windows
> saves you the purchase of a hub ;-)
>
> Add some decent ipchains on your linux box you're all set.
>
> regards,
>
> nick.
>
> > Hi, I have a Linux and a Windows PC. I need to connect them together and to
> > the cable modem. I also want the outside world be able see my Linux machine
> > (I want to setup Linux as webserver, ftp and telnet, etc.) I'm thinking
> > buying a hub for this task.
> >
> > So what is the proper connection? is it
> >
> > cable modem --- Linux --- Hub --- Windows
> >
> > or
> >
> > cable modem --- Hub --- Linux
> > |
> > ------ Windows
> >
> > Or should I use something other than hub?
> >
> > Thanks.
> >
> >
> >
--
Kevin Duckett
[EMAIL PROTECTED]
------------------------------
From: Kasper Dupont <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.apps,comp.os.linux.development.system
Subject: Re: Processor ID
Date: Thu, 08 Mar 2001 13:26:07 +0000
Kaz Kylheku wrote:
>
> On 7 Mar 2001 21:45:48 GMT, Dave Blake <[EMAIL PROTECTED]> wrote:
> >Bruce E. Varney <[EMAIL PROTECTED]> wrote:
> >> The Pentium III (and the Celeron?) supports a processor ID. Is
> >> there a system call in Linux which queries this value?
> >
> >The linux kernel, being an entity that values YOUR privacy,
> >disables access to the CPUid by default.
>
> Why doesn't it disable access to the your ethernet MAC then also?
I cannot see why disabling CPUid would protect
anybodys privacy. To get the CPUid a program
would have to be runing on the CPU, in that
case the program would have access to lots of
more sensible information than the CPUid.
MAC addresses of ethernet cards on the other
hand are sent over the network every time you
send a packet.
Can anybody explain WHY people are so unhappy
about the CPUid?
--
Kasper Dupont
------------------------------
From: Arne Driescher <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.apps,comp.os.linux.development.system
Subject: Re: Processor ID
Date: Thu, 08 Mar 2001 14:48:12 +0100
Kasper Dupont wrote:
>
> Kaz Kylheku wrote:
> >
> > On 7 Mar 2001 21:45:48 GMT, Dave Blake <[EMAIL PROTECTED]> wrote:
> > >Bruce E. Varney <[EMAIL PROTECTED]> wrote:
> > >> The Pentium III (and the Celeron?) supports a processor ID. Is
> > >> there a system call in Linux which queries this value?
> > >
> > >The linux kernel, being an entity that values YOUR privacy,
> > >disables access to the CPUid by default.
> >
> > Why doesn't it disable access to the your ethernet MAC then also?
>
> I cannot see why disabling CPUid would protect
> anybodys privacy. To get the CPUid a program
> would have to be runing on the CPU, in that
> case the program would have access to lots of
> more sensible information than the CPUid.
>
> MAC addresses of ethernet cards on the other
> hand are sent over the network every time you
> send a packet.
>
> Can anybody explain WHY people are so unhappy
> about the CPUid?
Lets say that it is much more up to you
what MAC a program "sees" than it is for CPUids.
(hardwareid.sourceforge.net)
------------------------------
From: "Richard Hockey" <[EMAIL PROTECTED]>
Crossposted-To: uk.comp.os.linux,alt.os.linux
Subject: Re: Linux Modem
Date: Thu, 8 Mar 2001 11:19:58 -0000
"Peter T. Breuer" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> In comp.os.linux.hardware Matt <[EMAIL PROTECTED]> wrote:
> > On Sun, 04 Mar 2001 11:46:08 +0000, Robert Horton
> > <[EMAIL PROTECTED]> wrote:
>
> >>Hi,
> >>> Is this modem compatible with Linux?
> >>>
> >>> 3COM/USRobotics 56K PCI VFD V90 Retail
> >>
>
> > and tell me where I can buy it in the UK (preferably online).
Try www.dabs.com
I have used them before, and they are pretty good for prices for most
hardware.
>
> Nobody can tell you that. I guess something like pcworld.
>
> Peter
------------------------------
From: Stefano Ghirlanda <[EMAIL PROTECTED]>
Subject: Re: laser printer for Linux
Date: 08 Mar 2001 15:12:08 +0100
De Roeck Software <[EMAIL PROTECTED]> writes:
> Our HP4050TN works great with linux,
Here too. It's one of the few pieces of hardware that needs basically
no configuration under unix (it's seen as a standard lpd queue) but
requires a 15MB download for Windows :-)
--
Stefano - Hodie postridie Nonas Martias MMI est
------------------------------
From: Karl-Heinz Herrmann <[EMAIL PROTECTED]>
Subject: Re: e2fsck -fy /dev/... does not correct an error
Date: 08 Mar 2001 16:35:32 +0100
Massimo Pinto <[EMAIL PROTECTED]> writes:
> [root@pc2990 pinto]# /sbin/e2fsck -fy /dev/hdb6
> e2fsck 1.18, 11-Nov-1999 for EXT2 FS 0.5b, 95/08/09
> Pass 1: Checking inodes, blocks, and sizes
> Error reading block 114724 (Attempt to read block from filesystem resulted in short
>read) while doing inode scan. Ignore error? yes
>
Hmm... short read while scanning the inodes. This sound like a
hardware (HD) problem. You really lost the access to that block on the
harddrive it seems. e2fsck will only repair the state of the
filesystem so all still existing file will be ok. Have a look in the
/var/log/* files if the ide-driver says anything about harddrive
problems.
Maybe some lost blocks were copied to the lost+found directory?
> Pass 2: Checking directory structure
> Pass 3: Checking directory connectivity
> Pass 4: Checking reference counts
> Pass 5: Checking group summary information
> /dev/hdb6: 13360/94576 files (0.8% non-contiguous), 244623/376833 blocks
Filesystem itself is ok again, but there is a block which is not readable.
> Running interactively and choosing not to ignore the error at block
> 114724. What am I doing wrong? Should I use a more specific block size
> with the -B option?
I don't think that will help. Wit SCSI drives I would have suggested
to try scsiinfo and setting the read retry to a high number and hope
for the best, but IDE.... I've no idea what one could try.
K.-H.
--
===================================
Karl-Heinz Herrmann
E-Mail: [EMAIL PROTECTED]
===================================
------------------------------
From: "Jerry Wong" <[EMAIL PROTECTED]>
Crossposted-To:
alt.os.linux.mandrake,alt.os.linux.slackware,comp.os.linux.advocacy,comp.windows.x.kde,tw.bbs.comp.linux
Subject: Harddisk for Linux
Date: Thu, 8 Mar 2001 22:43:19 +0800
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I want to buy a 30G Harddisk to install Linux (Red Hat 7.0). I heard =
that Lilo has problem for the harddisk over 1024 cylinder. Has this =
problem be overcome?
--=20
http://members.hknet.com/~wong63124
(In Chinese Big 5)
http://members.hknet.com/~wong63124/linux.htm
(In English)
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<DIV><FONT size=3D2>I want to buy a 30G Harddisk to install Linux (Red =
Hat 7.0). I=20
heard that Lilo has problem for the harddisk over 1024 cylinder. Has =
this=20
problem be overcome?</FONT></DIV>
<DIV><BR><FONT size=3D2>-- <BR></FONT><A=20
href=3D"http://members.hknet.com/~wong63124"><FONT=20
size=3D2>http://members.hknet.com/~wong63124</FONT></A><BR><FONT =
size=3D2>(In=20
Chinese Big 5)</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><A href=3D"http://members.hknet.com/~wong63124/linux.htm"><FONT=20
size=3D2>http://members.hknet.com/~wong63124/linux.htm</FONT></A><BR><FON=
T=20
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------------------------------
From: "Guillaume" <[EMAIL PROTECTED]>
Subject: Have anyone used Onstream IDE DI30 tape drive?
Date: Thu, 8 Mar 2001 15:57:24 +0100
Hi all,
Any experience with, or comment about, IDE Onstream Tape Drive DI30 under
Linux would be very appreciated.
Ease of installation, compatibilty and ease of use?
Thank's
Guillaume
------------------------------
From: Rolf Magnus <[EMAIL PROTECTED]>
Subject: Re: Harddisk for Linux
Date: Thu, 8 Mar 2001 16:03:30 +0100
Jerry Wong wrote:
> I want to buy a 30G Harddisk to install Linux (Red Hat 7.0). I heard that
> Lilo has problem for the harddisk over 1024 cylinder. Has this problem be
> overcome?
AFAIK, it still has this problem. But this just means that the partition
containing /boot (you can do an own /boot partiton of a few megabytes if
you want) has to be completely below
And please stop crossposting. This doesn't have to do anything with
mandrake, slackware, linux advocacy or kde!
------------------------------
From: Kasper Dupont <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.apps,comp.os.linux.development.system
Subject: Re: Processor ID
Date: Thu, 08 Mar 2001 15:11:51 +0000
Arne Driescher wrote:
>
[...]
>
> Lets say that it is much more up to you
> what MAC a program "sees" than it is for CPUids.
> (hardwareid.sourceforge.net)
Couldn't you do the same with CPUids?
I presume queries traps into kernel mode.
--
Kasper Dupont
------------------------------
From: "Dr. Guenter Schmidt" <[EMAIL PROTECTED]>
Subject: Problem with interrupt of SCSI controller and ncr53c8xx module
Date: Thu, 08 Mar 2001 16:19:57 +0100
I have tried to install RedHat 6.2 on a HP Kayak XAs with Symbios
SCSI =
controller, but the module 'ncr53c8xx' could not be loaded. The
same CD
did install on several other 'identical' Kayak's.
The correct module is detected, but fails to initialize, because
irq=3D0
is detected.
ncr53c8xx: at PCI bus 2, device 4, function 0
ncr53c8xx: 53c875E detected with Symbios NVRAM
ncr53c875E-0: rev=3D0x26, base=3D0xfdfff800, io_port=3D0xe800, irq=3D0
^^^^^
With Win2k that board has IRQ 16!! ( I always thought only IRQ
0-15 exist on PC
hardware), but I found another working linux system with irq=3D17. =
I tried at least three differrent RH6.2 versions (original, with
updates until
may 2000 and the Recovery CD of HP Visualize with updates to
october 2000).
The same error happend with the RH 7.1 beta (Wolferine). The only
difference had been,
that there was no error message during the text/curses mode.
On the other Kayaks the the ncr53c8xx module is loaded with: =
ncr53c8xx: at PCI bus 2, device 4, function 0
ncr53c8xx: 53c875E detected with Symbios NVRAM
ncr53c875E-0: rev=3D0x26, base=3D0xfdfff800, io_port=3D0xe800, irq=3D9=
or
ncr53c8xx: at PCI bus 2, device 4, function 0
ncr53c8xx: 53c875E detected with Symbios NVRAM
ncr53c875E-0: rev=3D0x26, base=3D0xfdfff800, io_port=3D0xe800,
irq=3D17
Any hints, how this problem may be solved?
Thanks in advance
G=FCnter
-- =
Dr. G=FCnter Schmidt | Bruker Analytik GmbH =
| NMR Software Department
E-Mail: [EMAIL PROTECTED] | Silberstreifen =
Phone: +49 721 5161-443/Fax:-480 | D-76287 Rheinstetten
------------------------------
From: [EMAIL PROTECTED] (Mark Bratcher)
Crossposted-To:
alt.os.linux.mandrake,alt.os.linux.slackware,comp.os.linux.advocacy,comp.windows.x.kde,tw.bbs.comp.linux
Subject: Re: Harddisk for Linux
Date: Thu, 08 Mar 2001 15:28:19 GMT
In article <9885jm$580$[EMAIL PROTECTED]>, Jerry Wong wrote:
>
>I want to buy a 30G Harddisk to install Linux (Red Hat 7.0). I heard =
>that Lilo has problem for the harddisk over 1024 cylinder. Has this =
>problem be overcome?
>
Linux does _not_ have a problem with large disks.
Older versions of Lilo have the problem, which is easily resolved
by either (a) creating a separate boot partition within 1024 cylinders,
or (b) downloading and using the latest lilo.
--
Mark Bratcher
To reply direct, remove both underscores (_) from my email name
===============================================================
Escape from Microsoft's proprietary tentacles: use Linux!
------------------------------
From: John Culleton <[EMAIL PROTECTED]>
Subject: Re: Can't access NIC under Slackware 7.2 -NEWBIE-
Date: Thu, 08 Mar 2001 14:45:07 GMT
On Wed, 07 Mar 2001, Sam Worf wrote:
>After entering the Linux world just a couple days ago I've hit a snag.
>My new install of Slackware 7.2 won't let me use my Kingston KNE110TX
>NIC, instead it gives me the following error on boot:
>
>> Attempting to configure eth0 by contacting a DHCP server...
>> dhcpcd[70]: dhcpStart: ioctl SIOCSIFFLAGS: Resource temporarily
>> unavailable
>
>I have set netconfig to connect through DHCP cause that's the way my
>hardware is set up, and upon probing my hardware netconfig correctly
>identifies my NIC as tulip type.
>
>
First question: are you connected to an ISP who provides for DHCP? When I set
up my system I had it all ready before the cable modem guy showed up and it
connected right away.
If that is the case, then you need to review the choices made in your
configuration when you recompiled your kernel. I can send you my .config file
if you like. I use a different card but otherwise it should be the same setup.
------------------------------
From: Mark Hahn <[EMAIL PROTECTED]>
Subject: Re: Harddisk for Linux
Date: 8 Mar 2001 15:37:03 GMT
>> I want to buy a 30G Harddisk to install Linux (Red Hat 7.0). I heard that
>> Lilo has problem for the harddisk over 1024 cylinder. Has this problem be
>> overcome?
> AFAIK, it still has this problem. But this just means that the partition
you don't know far enough. RH7 does indeed include a version of lilo
that supports the "lba32" flag that removes the 1Kcyl limit.
------------------------------
From: Arne Driescher <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.apps,comp.os.linux.development.system
Subject: Re: Processor ID
Date: Thu, 08 Mar 2001 17:01:43 +0100
Kasper Dupont wrote:
>
> Arne Driescher wrote:
> >
> [...]
> >
> > Lets say that it is much more up to you
> > what MAC a program "sees" than it is for CPUids.
> > (hardwareid.sourceforge.net)
>
> Couldn't you do the same with CPUids?
>
> I presume queries traps into kernel mode.
>
As far as I understand Intels specs CPUID will not
trap. This seems logical to me because the returned
values of CPUID depend on what you put into EAX
and different CPUs support different values for EAX.
So, illegal values for EAX simply return undefined
results and don't trap. Only processors not supporting
CPUID at all will raise an ill. op. exception.
-Arne
------------------------------
From: [EMAIL PROTECTED] (Lacky)
Crossposted-To: comp.os.linux.setup
Subject: Optimizing Kernel & System for AMD Durons
Reply-To: [EMAIL PROTECTED]
Date: Thu, 08 Mar 2001 16:10:47 GMT
Are there specific settings that one should switch when compliing a
new kernel for AMD Duron processors? I want to make sure I am getting
the most out of my system so it seems silly to compl;ie it generically
for an i386 processor.
Also, should certain parameters be flagged when compiling programs
under a Duron system? IF so what?
Any links or further information is greatly appreciated!
------------------------------
From: Tim Moore <[EMAIL PROTECTED]>
Crossposted-To: alt.comp.periphs.mainboard.abit
Subject: BP6 + EC10 upgrade + linux report
Date: Thu, 08 Mar 2001 16:18:57 GMT
I recently did the EC10 100uF -> 1000uF capacitor upgrade and thought I
would share the test results.
The test was to load up network and disk I/O without any lockups:
a) copy a 1 GB file repeatedly between ide0 (UDMA2/PIIX4) and ide3
(UDMA4/HPT366).
b) at the same time ftp a 250MB file from another machine across full
duplex 100bT repeatedly. These loops ran for over an hour.
Before the EC10 upgrade, any significant disk or network I/O would
freeze the board hard requiring a reboot. After, zero lockups. EC10
fix is highly recommended. Note that the recommendation from Abit is
6.3v, 1500uF which is slightly different than what I used.
BP6 v1.0
2x533MHz @72MHz (1.1GHz total)
RU BIOS
linux 2.2.19pre8 + ide patch
300W SPI power supply
EC10 cap = Radio Shack #272-958, 16v/1000uF
# lspci
00:00.0 Host bridge: Intel Corporation 440BX/ZX - 82443BX/ZX Host bridge
(rev 03)
00:01.0 PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge
(rev 03)
00:07.0 ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 02)
00:07.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01)
00:07.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01)
00:07.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 02)
00:09.0 Ethernet controller: Lite-On Communications Inc LNE100TX (rev
20)
00:13.0 Unknown mass storage controller: Triones Technologies, Inc.
HPT366 (rev 01)
00:13.1 Unknown mass storage controller: Triones Technologies, Inc.
HPT366 (rev 01)
01:00.0 VGA compatible controller: S3 Inc. Savage 4 (rev 02)
ftp test
========
> while (1)
while? echo =============== `date` ===================
while? /usr/bin/time ncftpget -f ncftp.tmp ftp://abit/test.ftp
while? rm -vf test.ftp
while? sync
while? end
disk copy test
==============
# while (1)
while? echo ===================== `date` =============
while? /usr/bin/time dd if=/big/test of=/kits/test bs=4k
while? rm -vf /big/test
while? sync
while? /usr/bin/time dd if=/kits/test of=/big/test bs=2k
while? rm -vf /kits/test
while? sync
while? end
...
=============== Thu Mar 8 06:41:47 PST 2001 ===================
test.ftp: 240.00 MB 7.16
MB/s
0.54user 16.48system 0:39.34elapsed 43%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (209major+27minor)pagefaults 0swaps
removing test.ftp
=============== Thu Mar 8 06:42:47 PST 2001 ===================
test.ftp: 240.00 MB 8.26
MB/s
0.33user 23.23system 0:36.07elapsed 65%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (201major+27minor)pagefaults 0swaps
removing test.ftp
===================== Thu Mar 8 06:44:05 PST 2001 =============
256000+0 records in
256000+0 records out
0.38user 23.89system 1:38.28elapsed 24%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (256118major+17minor)pagefaults 0swaps
removing /big/test
512000+0 records in
512000+0 records out
0.65user 38.41system 1:07.82elapsed 57%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (256118major+17minor)pagefaults 0swaps
removing /kits/test
=============== Thu Mar 8 06:44:07 PST 2001 ===================
test.ftp: 240.00 MB 7.05
MB/s
0.56user 17.46system 0:35.46elapsed 50%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (200major+27minor)pagefaults 0swaps
removing test.ftp
=============== Thu Mar 8 06:45:46 PST 2001 ===================
test.ftp: 240.00 MB 8.17
MB/s
0.38user 23.24system 0:36.77elapsed 64%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (200major+27minor)pagefaults 0swaps
removing test.ftp
===================== Thu Mar 8 06:47:05 PST 2001 =============
256000+0 records in
256000+0 records out
0.36user 26.98system 2:12.11elapsed 20%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (256118major+17minor)pagefaults 0swaps
removing /big/test
512000+0 records in
512000+0 records out
0.49user 38.52system 1:09.59elapsed 56%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (256118major+17minor)pagefaults 0swaps
removing /kits/test
=============== Thu Mar 8 06:47:05 PST 2001 ===================
test.ftp: 240.00 MB 6.97
MB/s
0.52user 16.82system 0:35.90elapsed 48%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (200major+27minor)pagefaults 0swaps
removing test.ftp
=============== Thu Mar 8 06:48:06 PST 2001 ===================
test.ftp: 240.00 MB 7.55
MB/s
0.62user 15.83system 0:33.18elapsed 49%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (200major+27minor)pagefaults 0swaps
removing test.ftp
...
--
timothymoore
bigfoot
com
------------------------------
From: Patrick F Harris <[EMAIL PROTECTED]>
Subject: Re: wish to purchase new motherboard and ram - recommendations?
Date: Sat, 10 Mar 2001 10:36:41 -0600
I am running two AMD 450's on Alladin-V with no problems (Giga- Byte GA-5AX
& 5AA - Baby AT and ATX) ATI AGP cards and 196 / 384 Meg Ram, both are very
stable. You might have some other problem, loose something, HD fighting
each other on the same cable shared IRQ stuff, - make shur IRQ is in Level
not Edge Mode on these boards.
Cases are cheap so if you buy a new MB go ATX - For my next system I may go
right to intel for an 815EEAL MB with 733 PIII
$300
PS I just got a K6-2+ 450 from Tiger for $45 and have clocked it at 110x5 it
is not to far behind a a Duron 600
Dan Stromberg wrote:
> I have an AMD K6/2 450Mhz system with 64M of ram and an Asus P5A-B
> Alladin-V motherboard (I believe "B-AT mb" means it's a baby AT
> formfactor), which I bought from a linux vendor that has since gone
> out of business. :( Specs on the motherboard are available here:
> http://lhd.datapower.com/db/dispproduct.php3?DISP?367 .
>
> The system swaps too much when I use java apps (and mozilla is
> unusable) due to too little ram, and it crashes once in a while which
> I heard is probably because the motherboard has bad AGP support. This
> seems plausible because if I use 16 bpp, the machine crashes a lot
> less than if I use 32 bpp, though it still crashes too much IMO.
>
>
>
> Can anyone recommend such a motherboard?
>
> Thanks much.
> --
> Dan Stromberg UCI/NACS/DCS
------------------------------
From: [EMAIL PROTECTED] (Philip Hirschhorn)
Subject: Re: Tape drive for Linux
Crossposted-To: uk.comp.os.linux
Date: 08 Mar 2001 17:05:21 GMT
John Thompson ([EMAIL PROTECTED]) wrote:
: Rob Clive wrote:
: > What software are you using to drive them? I'm using an HP
: > (really Colorado) 5Gb with ide-tape but it seems to need a
: > small backup on the tape to start with which it can c*ck up.
: > The next (real) backup then works OK. It also seems quite
: > frequently to suffer a DSC timeout. All in all I was
: > considering swapping it until your article suggested all could
: > be well. BTW the current backup s/w is KBackup but I've tried
: > Taper with much the same results. Amanda seems a bit of
: > overkill for a single server system. Recommendations wanted :-)
: I use an HP-Colorado 5GB ATAPI tape drive on my linux system
: without problems. I have ide-tape support as a module and use
: afio to make the backups (I've also used tar successfully in the
: past). I can start with a blank tape; no need to create dummy
: backups. Nor have I had any trouble with DSC timeouts. I did
: try taper a long time ago but never got it to work with the HP
: drive (it worked fine with the Exabyte SCSi drive on my other
: machine, though). Perhaps the problem is with KBackup and
: taper? Afio and tar aren't pretty, but they do seem to work.
I've had a Seagate Tapestor 8000 (4GB not counting compression) for
around five years now and used it happily with whatever the current
kernels have bben since then. I control the tape with mt-st, I make
backups using tar, and I just write the backups to tape (or read them
from tape) using cp. Low tech, but it works well. (Actually, tar
isn't low tech; the "listed incremental" feature makes incremental
backups easy.)
With any tape drive, one thing to keep in mind is to
*rentension*the*tape*! Several times.
I've written scripts to do all the creating of tar files, copying
files to tape, keeping track of the whole process so you can ignore it
while it's running, etc., and I just put a couple of my scripts at
http://www-math.mit.edu/~psh/tapedrive/
Take a look, in case it helps. Basically, you have to retension a
lot, and remember that it can take a few seconds (usually less than
five seconds) after an operation before the tape is actually ready for
the next operation (that's built into the scripts). Those scripts
define some directories and files near the top of the scripts; if
they're not self explanatory, write and ask about them.
Hope this helps,
Phil
--
======================================================================
Philip Hirschhorn [EMAIL PROTECTED]
[EMAIL PROTECTED]
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