linux.dev.scsi Google Group

Linux and bad SCSI HD: can I force mount a partition?

wolfgang_.fisc...@freenet.de (Wolfgang Fischer) — Fri, 08 Aug 2003 08:25:13 UT

Hello,
Copy the whole hd to another disk or an ftp server. This makes sure that
another disk failure won't destroy any more data. If you know the exact
start/end of the partition, you can mount it using something like this:
losetup -o start_position_in_bytes /dev/loopX image
mount /dev/loopX /mnt
regards

how to create /dev/sdc ?

renr...@yahoo.com (V. Turner) — Fri, 08 Aug 2003 05:20:45 UT

RS wrote:
Two ways:
1) cd /dev; ./MAKEDEV sdc
man MAKEDEV for more info. For instance "./MAKEDEV -S sdc", will show you
what it will do without actually doing it.
2) mknod -m 0660 /dev/sdc b 8 32
chown root.root /dev/sdc
(I actually got the above from running MAKEDEV with the -S option).

how to create /dev/sdc ?

noem...@nospam.com (RS) — Fri, 08 Aug 2003 04:38:37 UT

Hi, there,
I accidentally deleted /dev/sdc.
Would someone please tell me how to create it back.
Is it by using 'mknod'? What would be the MAJOR and MINOR
be? I think the type is 8.
Thanks in advance!
Roger
email: rs...@bigmailbox.net

Linux and bad SCSI HD: can I force mount a partition?

noem...@nospam.com (RS) — Fri, 08 Aug 2003 03:45:56 UT

Hi, there,
I have this SCSI HD which developed a problem. It seems that
sector 0 of the HD turned bad.
When my Redhat Linux 7.3 boot up, I got this message:

Will a LVD drive work with the NCR 53c876 controller?

jo...@aproposretail.com (John Hardin) — Wed, 06 Aug 2003 16:39:34 UT

I have a 53c876-based controller with 68-pin cables and I need to
replace a drive. Is the 68-pin connector all I need to worry about and
current-generation drives will work fine, or do I need to find an old
non-LVD 68-pin drive?
I really hope the new U160 and U320 drives are drop-in compatible. I
am, of course, aware that they won't run at full speed...

cdrom broken?

rotoploo...@freenet.de (Tim Boneko) — Fri, 03 Jan 2003 12:42:29 UT

Hi!
Trying to copy the first (audio-) cd of the year ended with xcdroast`s
failure message:
cdda2wav: Input/output error. ReadStandard10: scsi sendcmd: cmd timeout
after 0.294 (300) s
CDB: 28 00 00 00 00 2E 00 00 32 00
resid: 102400
cmd finished after 0.294s timeout 300s
a few hundred times.
This is the according syslog entry:

UPDATE: scanner repeated in device list

j...@kona.homeip.net (Jason Adams) — Wed, 11 Dec 2002 03:55:15 UT

Hey, you can't have everything!! ;-)

UPDATE: scanner repeated in device list

dko...@kosmosisland.com (David Koski) — Wed, 11 Dec 2002 00:37:34 UT

<snip>

Unfortunately, my joy was short lived. sane has decided to seg fault
without fail again.
David

UPDATE: scanner repeated in device list

dko...@kosmosisland.com (David Koski) — Tue, 10 Dec 2002 18:05:46 UT

JP,
I too have had 7.1 on the same hardware without problems. Even 8.0, but
with 8.1 I have to have the following boot options:
ide=nodma apm=off acpi=off
Add to that:
max_scsi_luns=1
..to make my scanner work. But it works great now--no device repeats in
the device list, no segmentation faults. Correction on my

UPDATE: scanner repeated in device list

jolp...@hotmail.com (jolphil) — Tue, 10 Dec 2002 14:24:58 UT

David,
I have the exact same problem with my scanner(microtec E6) on SuSe8
but on the very same system,Suse 7.1 did not have this problem..Go
Figure..
Goodluck,
JP

UPDATE: scanner repeated in device list

dko...@kosmosisland.com (David Koski) — Tue, 10 Dec 2002 10:05:19 UT

Right on! Now my scanner works perfectly with "Segmentation faults" too!
Thanks,
David Koski
da...@KosmosIsland.com

UPDATE: scanner repeated in device list

j...@kona.homeip.net (Jason Adams) — Tue, 10 Dec 2002 06:38:35 UT

This article in the SuSE knowledge base refers to cdburners, but
it might work for scanners too.....
[link]

UPDATE: scanner repeated in device list

dko...@kosmosisland.com (David Koski) — Mon, 09 Dec 2002 02:22:45 UT

More info; /proc/scsi/scsi shows that the duplicate scanner devices are
assigned unique LUNs:
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IBM Model: DDYS-T18350N Rev: SA2A
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 01 Lun: 00

scanner repeated in device list

dko...@kosmosisland.com (David Koski) — Sun, 08 Dec 2002 20:20:55 UT

<snip>
Yes, and yes. It is the only device on the BusLogic, and it is terminated
at the scanner.
Thanks,
David

scanner repeated in device list

walthar...@mindspring.com (Walt Harris) — Sun, 08 Dec 2002 15:20:23 UT

Is the scanner the last device in the external chain and is it
terminated properly? If you have another terminator, I'd suggest trying
to swap them. I didn't have this problem, but my SCSI scanner had misc
problems until I put a new terminator on it.