Re: cdrecord, mount complain there is no disk

2002-11-25 Thread Nadav Har'El
On Mon, Nov 25, 2002, Orna Agmon wrote about Re: cdrecord, mount complain there is no 
disk:
 The primitive way is to do this with an ear-stick(??) (MAKLON 

Americans usually call this stick a Q-tip :)

 OZNAYIM), dipped in alcohol, and exremely gently clean the eye manually. 

Note, by the way, that cleaning kits normally contain isopropyl alcohol,
not ethanol (normal alcohol), because ethanol is less gentle on certain
kinds of plastics.
[Please keep isopropanol or any alcohol out of reach from children]

 And of course never open it when it is operating- LASER. (yes, i know you 
 know, but I would not have slept had I not said it)

Yes, as the joke in physics labs go: Do not look into laser with remaining
eye! :)


-- 
Nadav Har'El|  Monday, Nov 25 2002, 20 Kislev 5763
[EMAIL PROTECTED] |-
Phone: +972-53-245868, ICQ 13349191 |How to become immortal: Read this
http://nadav.harel.org.il   |signature tomorrow and follow its advice.

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Re: cdrecord, mount complain there is no disk

2002-11-25 Thread Nadav Har'El
On Mon, Nov 25, 2002, Nadav Har'El wrote about Re: cdrecord, mount complain there is 
no disk:
 On Mon, Nov 25, 2002, Orna Agmon wrote about Re: cdrecord, mount complain there is 
no disk:
  The primitive way is to do this with an ear-stick(??) (MAKLON 
 
 Americans usually call this stick a Q-tip :)

Oh, and there is a swab. a cotton swab. The difference between a swab and
a Q-tip is that a swab normally has a small cotton-ball on one of its ends,
while a Q-tip has cotton on both.

-- 
Nadav Har'El|  Monday, Nov 25 2002, 20 Kislev 5763
[EMAIL PROTECTED] |-
Phone: +972-53-245868, ICQ 13349191 |[I'm] so full of action, my name should
http://nadav.harel.org.il   |be a verb -- Big Daddy Kane (Raw, 1987)

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cdrecord, mount complain there is no disk

2002-11-24 Thread Oleg Goldshmidt

Hi everybody,

All of a sudden, my CD writer refuses to work properly (it has been
working just fine until now, for at least 18 months or so).

Platform: 

RH7.3 on Pentium III 866 Mhz, different variations of RH's 2.4.18
(2.4.18-{5,10,18.7.x}), cdrecord-1.10-11.

Symptoms:

# cdrecord -v speed=4 dev=0,0,0 -data rh.iso
Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jorg Schilling
TOC Type: 1 = CD-ROM
scsidev: '0,0,0'
scsibus: 0 target: 0 lun: 0
Linux sg driver version: 3.1.24
Using libscg version 'schily-0.5'
atapi: 1
Device type: Removable CD-ROM
Version: 0
Response Format: 1
Vendor_info: 'RICOH   '
Identifikation : 'CD-R/RW MP7120A '
Revision   : '1.20'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
Driver flags   : SWABAUDIO
FIFO size  : 4194304 = 4096 KB
Track 01: data  623 MB
Total size: 715 MB (70:54.74) = 319106 sectors
Lout start: 716 MB (70:56/56) = 319106 sectors
cdrecord: Input/output error. test unit ready: scsi sendcmd: no error
CDB:  00 00 00 00 00 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 02 00 00 00 00 0C 00 00 00 00 3A 00 00 00
Sense Key: 0x2 Not Ready, Segment 0
Sense Code: 0x3A Qual 0x00 (medium not present) Fru 0x0
Sense flags: Blk 0 (not valid) 
cmd finished after 0.001s timeout 40s
cdrecord: No disk / Wrong disk!

It does seem that there is nothing wrong with cdrecord or kernel:
cdrecord is talking to the device, also 

# cdrecord -scanbus
Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jorg Schilling
Linux sg driver version: 3.1.24
Using libscg version 'schily-0.5'
scsibus0:
0,0,0 0) 'RICOH   ' 'CD-R/RW MP7120A ' '1.20' Removable CD-ROM
0,1,0 1) *
0,2,0 2) *
0,3,0 3) *
0,4,0 4) *
0,5,0 5) *
0,6,0 6) *
0,7,0 7) *

Here is the list of loaded modules, which may be relevant:

# /sbin/lsmod 
Module  Size  Used byNot tainted
sr_mod 16056   0  (autoclean)
sb  8992   0  (autoclean)
sb_lib 39456   0  (autoclean) [sb]
uart401 7744   0  (autoclean) [sb_lib]
sound  69388   0  (autoclean) [sb_lib uart401]
soundcore   6212   5  (autoclean) [sb_lib sound]
tdfx   37656   1 
agpgart40256   0  (unused)
binfmt_misc 7236   1 
autofs 11172   0  (autoclean) (unused)
3c59x  28328   1 
ide-scsi9376   0 
scsi_mod  104848   2  [sr_mod ide-scsi]
ide-cd 30144   0 
cdrom  31936   0  [sr_mod ide-cd]
usb-uhci   24324   0  (unused)
usbcore71072   1  [usb-uhci]
ext3   64800   5 
jbd47892   5  [ext3]

Nor can I read a CD from the drive, seemingly for the same reason:

# mount /dev/cdrom1 /mnt/cdrom1
mount: block device /dev/cdrom1 is write-protected, mounting read-only
mount: No medium found

Is it a problem with the optical system? What can I check? Is there a
way to clean it or something? Any pointers? I'd like to avoid buying a
new CD writer if I can.

I STFWed, of course, saw quite a few complaints, but no useful
diagnostics procedure or pointers to solutions.

Thanks,

-- 
Oleg Goldshmidt | [EMAIL PROTECTED] 

First binary search algorithm - J. Mauchly, 1946
First correct binary search algorithm - D.H.Lehmer, 1960 

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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Geoffrey S. Mendelson
Oleg Goldshmidt wrote:

 All of a sudden, my CD writer refuses to work properly (it has been
 working just fine until now, for at least 18 months or so).

1. Clean the lens. Buy a CD/DVD lens clean disk for about 20-30 NIS.
2. Look for microcode updates on the web.

Geoff.
-- 
Geoffrey S. Mendelson
MobilEye Vision Technologies Ltd, R.M.P.E House, 10 Hartom St.
Har Hotzvim, Jerusalem, 91450 Israel Tel: +972-2-5417-356 Cell: +972-55-667-090
Do sysadmins count networked sheep?


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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Oleg Goldshmidt
Geoffrey S. Mendelson [EMAIL PROTECTED] writes:

 Oleg Goldshmidt wrote:
 
  All of a sudden, my CD writer refuses to work properly (it has been
  working just fine until now, for at least 18 months or so).
 
 1. Clean the lens. Buy a CD/DVD lens clean disk for about 20-30 NIS.

Anything in particular that I should need to know in connection with
Linux? Brands that work or don't? Commands to make the cleaning disk
spin? Or do they come with music?

http://www.immt.pwr.wroc.pl/faq/msg00092.html
http://repairfaq.ece.drexel.edu/sam/cdfaq.htm#cdcdlcd

don't make me feel very optimistic though...

 2. Look for microcode updates on the web.

Uh? Why should I?

-- 
Oleg Goldshmidt | [EMAIL PROTECTED] 

First binary search algorithm - J. Mauchly, 1946
First correct binary search algorithm - D.H.Lehmer, 1960 

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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Oleg Kobets
1. Use different recording the media.
2. Clean the cd-r lenses as Geofrey mentioned.
3. Try complete poweroff, NOT reboot. (I know, I know, but it works
nevertheless)

---
Oleg Kobets
Network Administrator
Breakthrough LTD.
054-747132
03-6349922 Ext 26

Black hole is God divided by zero
- Original Message -
From: Oleg Goldshmidt [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, November 24, 2002 1:06 PM
Subject: cdrecord, mount complain there is no disk



 Hi everybody,

 All of a sudden, my CD writer refuses to work properly (it has been
 working just fine until now, for at least 18 months or so).

 Platform:

 RH7.3 on Pentium III 866 Mhz, different variations of RH's 2.4.18
 (2.4.18-{5,10,18.7.x}), cdrecord-1.10-11.

 Symptoms:

 # cdrecord -v speed=4 dev=0,0,0 -data rh.iso
 Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jorg Schilling
 TOC Type: 1 = CD-ROM
 scsidev: '0,0,0'
 scsibus: 0 target: 0 lun: 0
 Linux sg driver version: 3.1.24
 Using libscg version 'schily-0.5'
 atapi: 1
 Device type: Removable CD-ROM
 Version: 0
 Response Format: 1
 Vendor_info: 'RICOH   '
 Identifikation : 'CD-R/RW MP7120A '
 Revision   : '1.20'
 Device seems to be: Generic mmc CD-RW.
 Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
 Driver flags   : SWABAUDIO
 FIFO size  : 4194304 = 4096 KB
 Track 01: data  623 MB
 Total size: 715 MB (70:54.74) = 319106 sectors
 Lout start: 716 MB (70:56/56) = 319106 sectors
 cdrecord: Input/output error. test unit ready: scsi sendcmd: no error
 CDB:  00 00 00 00 00 00
 status: 0x2 (CHECK CONDITION)
 Sense Bytes: 70 00 02 00 00 00 00 0C 00 00 00 00 3A 00 00 00
 Sense Key: 0x2 Not Ready, Segment 0
 Sense Code: 0x3A Qual 0x00 (medium not present) Fru 0x0
 Sense flags: Blk 0 (not valid)
 cmd finished after 0.001s timeout 40s
 cdrecord: No disk / Wrong disk!

 It does seem that there is nothing wrong with cdrecord or kernel:
 cdrecord is talking to the device, also

 # cdrecord -scanbus
 Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jorg Schilling
 Linux sg driver version: 3.1.24
 Using libscg version 'schily-0.5'
 scsibus0:
 0,0,0 0) 'RICOH   ' 'CD-R/RW MP7120A ' '1.20' Removable CD-ROM
 0,1,0 1) *
 0,2,0 2) *
 0,3,0 3) *
 0,4,0 4) *
 0,5,0 5) *
 0,6,0 6) *
 0,7,0 7) *

 Here is the list of loaded modules, which may be relevant:

 # /sbin/lsmod
 Module  Size  Used byNot tainted
 sr_mod 16056   0  (autoclean)
 sb  8992   0  (autoclean)
 sb_lib 39456   0  (autoclean) [sb]
 uart401 7744   0  (autoclean) [sb_lib]
 sound  69388   0  (autoclean) [sb_lib uart401]
 soundcore   6212   5  (autoclean) [sb_lib sound]
 tdfx   37656   1
 agpgart40256   0  (unused)
 binfmt_misc 7236   1
 autofs 11172   0  (autoclean) (unused)
 3c59x  28328   1
 ide-scsi9376   0
 scsi_mod  104848   2  [sr_mod ide-scsi]
 ide-cd 30144   0
 cdrom  31936   0  [sr_mod ide-cd]
 usb-uhci   24324   0  (unused)
 usbcore71072   1  [usb-uhci]
 ext3   64800   5
 jbd47892   5  [ext3]

 Nor can I read a CD from the drive, seemingly for the same reason:

 # mount /dev/cdrom1 /mnt/cdrom1
 mount: block device /dev/cdrom1 is write-protected, mounting read-only
 mount: No medium found

 Is it a problem with the optical system? What can I check? Is there a
 way to clean it or something? Any pointers? I'd like to avoid buying a
 new CD writer if I can.

 I STFWed, of course, saw quite a few complaints, but no useful
 diagnostics procedure or pointers to solutions.

 Thanks,

 --
 Oleg Goldshmidt | [EMAIL PROTECTED]
 
 First binary search algorithm - J. Mauchly, 1946
 First correct binary search algorithm - D.H.Lehmer, 1960

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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Geoffrey S. Mendelson
Oleg Goldshmidt wrote:
 Anything in particular that I should need to know in connection with
 Linux? Brands that work or don't? Commands to make the cleaning disk
 spin? Or do they come with music?

Some do, some come with videos, Any one will do. Put it in your drive and
try to mount it. Does not matter if it does or not.

 http://www.immt.pwr.wroc.pl/faq/msg00092.html
 http://repairfaq.ece.drexel.edu/sam/cdfaq.htm#cdcdlcd
 
 don't make me feel very optimistic though...

It's probably dirt. 
 
  2. Look for microcode updates on the web.
 
 Uh? Why should I?

Why not. :-) Often there are patches which improve things.

Geoff.
-- 
Geoffrey S. Mendelson
MobilEye Vision Technologies Ltd, R.M.P.E House, 10 Hartom St.
Har Hotzvim, Jerusalem, 91450 Israel Tel: +972-2-5417-356 Cell: +972-55-667-090
Do sysadmins count networked sheep?


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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Orna Agmon
On 24 Nov 2002, Oleg Goldshmidt wrote:
  
  1. Clean the lens. Buy a CD/DVD lens clean disk for about 20-30 NIS.
 
 Anything in particular that I should need to know in connection with
 Linux? Brands that work or don't? Commands to make the cleaning disk
 spin? Or do they come with music?
 
 http://www.immt.pwr.wroc.pl/faq/msg00092.html
 http://repairfaq.ece.drexel.edu/sam/cdfaq.htm#cdcdlcd
 
 don't make me feel very optimistic though...

From my experiance, once a CD-eye got dust on it, it will happen again, 
rather soon. To give it a better chance, kindly disassemble your computer 
and dust it (using the apropriate air spary or whatever). 

-- 
Orna.   |  http://tx.technion.ac.il/~agmon

A cat has claws at the end of its paws.
A sentence has a pause at the end of its clause.


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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Oleg Goldshmidt
Oleg Kobets [EMAIL PROTECTED] writes:

 1. Use different recording the media.

Tried. It is the same for 2 different brands of CDs, both used
successfully in the past.

 2. Clean the cd-r lenses as Geofrey mentioned.
 3. Try complete poweroff, NOT reboot. (I know, I know, but it works
 nevertheless)

Tried that, too.

Thanks,

-- 
Oleg Goldshmidt | [EMAIL PROTECTED] 

First binary search algorithm - J. Mauchly, 1946
First correct binary search algorithm - D.H.Lehmer, 1960 

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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Oleg Goldshmidt
Geoffrey S. Mendelson [EMAIL PROTECTED] writes:

 Any one will do. Put it in your drive and try to mount it. Does not
 matter if it does or not.

Obviously, it didn't. Why should it find this particular CD if it does
not find any other? Nor does the disk spin with any CD player app I
tried (it's supposed to be a music CD).

No change in status, and I have just wasted NIS 35, I think...

-- 
Oleg Goldshmidt | [EMAIL PROTECTED] 

First binary search algorithm - J. Mauchly, 1946
First correct binary search algorithm - D.H.Lehmer, 1960 

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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread guy keren

On 24 Nov 2002, Oleg Goldshmidt wrote:

 Geoffrey S. Mendelson [EMAIL PROTECTED] writes:
 
  Any one will do. Put it in your drive and try to mount it. Does not
  matter if it does or not.
 
 Obviously, it didn't. Why should it find this particular CD if it does
 not find any other? Nor does the disk spin with any CD player app I
 tried (it's supposed to be a music CD).
 
 No change in status, and I have just wasted NIS 35, I think...

oh, not at all. you bought some knowledge with those 35 NIS. until now - 
you had a _hunch_.

why don't you step over to the technician to check the CD? it could be 
that it got damaged beyond cleaning.

its a rule commonly known by peple who worked in customer support: if it 
stopped working 'all of a sudden', do NOT exclude hardware malfunction 
from the list of potential problems to check.

-- 
guy

For world domination - press 1,
 or dial 0, and please hold, for the creator. -- nob o. dy


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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Orna Agmon
On 24 Nov 2002, Oleg Goldshmidt wrote:

 Geoffrey S. Mendelson [EMAIL PROTECTED] writes:
 
  Any one will do. Put it in your drive and try to mount it. Does not
  matter if it does or not.
 
 Obviously, it didn't. Why should it find this particular CD if it does
 not find any other? Nor does the disk spin with any CD player app I
 tried (it's supposed to be a music CD).
 
 No change in status, and I have just wasted NIS 35, I think...
 

The primitive way is to do this with an ear-stick(??) (MAKLON 
OZNAYIM), dipped in alcohol, and exremely gently clean the eye manually. 
But of course this takes taking apart the CD. I have done this sucessfully 
on audio CDs readers, never on a burner.

And of course never open it when it is operating- LASER. (yes, i know you 
know, but I would not have slept had I not said it)

-- 
Orna.   |  http://tx.technion.ac.il/~agmon

A cat has claws at the end of its paws.
A sentence has a pause at the end of its clause.


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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Oleg Goldshmidt
guy keren [EMAIL PROTECTED] writes:

 oh, not at all. you bought some knowledge with those 35 NIS. until now - 
 you had a _hunch_.

I referred to the hindsight 20/20 that should have told me that if
ordinary CDs don't spin the cleaning one won't either...

 why don't you step over to the technician to check the CD? it could be 
 that it got damaged beyond cleaning.

Sure. I got to thinking it may be a mechanical or electrical problem,
too. I wanted to try at least something before going to technician.
 
 its a rule commonly known by peple who worked in customer support: if it 
 stopped working 'all of a sudden', do NOT exclude hardware malfunction 
 from the list of potential problems to check.

And I didn't. Thanks, Guy,

-- 
Oleg Goldshmidt | [EMAIL PROTECTED] 

First binary search algorithm - J. Mauchly, 1946
First correct binary search algorithm - D.H.Lehmer, 1960 

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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Oleg Goldshmidt
Orna Agmon [EMAIL PROTECTED] writes:

 And of course never open it when it is operating- LASER. (yes, i know you 
 know, but I would not have slept had I not said it)

To tell you the truth, I would be much more concerned about getting
electrocuted one way or another while opening a working computer and
taking apart the CD writer than getting harmed by a laser in it. I
don't know the parameters, but my guess is that its power is not all
that great (though I do want to be careful). If that is right, it can
only damage the eye if it is UV (I doubt). Even that is not too bad
since I am wearing glasses... Looking at the light of a Xerox machine
is probably worse.

;-)

-- 
Oleg Goldshmidt | [EMAIL PROTECTED] 

First binary search algorithm - J. Mauchly, 1946
First correct binary search algorithm - D.H.Lehmer, 1960 

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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Oleg Kobets
Actually all computer parts operate at 12v and 5v. Those are the voltages
that power supply emits. There is no way you can be electrocuted, but rather
you'll feel gentle tickling senstaions :-)

As for the laser, it can only harm you if you are looking strait at the eye
when it's working (i mean really working, not just connected to live
current).

As for CD-R, do yourself a favor, buy a new one. There are very cheap and
good ones today on the market and to repair this one will cost you more then
buy a new one. I am speaking from experience :(

---
Oleg Kobets
Network Administrator
Breakthrough LTD.
054-747132
03-6349922 Ext 26

Black hole is God divided by zero
- Original Message -
From: Oleg Goldshmidt [EMAIL PROTECTED]
To: Orna Agmon [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Monday, November 25, 2002 8:53 AM
Subject: Re: cdrecord, mount complain there is no disk


 Orna Agmon [EMAIL PROTECTED] writes:

  And of course never open it when it is operating- LASER. (yes, i know
you
  know, but I would not have slept had I not said it)

 To tell you the truth, I would be much more concerned about getting
 electrocuted one way or another while opening a working computer and
 taking apart the CD writer than getting harmed by a laser in it. I
 don't know the parameters, but my guess is that its power is not all
 that great (though I do want to be careful). If that is right, it can
 only damage the eye if it is UV (I doubt). Even that is not too bad
 since I am wearing glasses... Looking at the light of a Xerox machine
 is probably worse.

 ;-)

 --
 Oleg Goldshmidt | [EMAIL PROTECTED]
 
 First binary search algorithm - J. Mauchly, 1946
 First correct binary search algorithm - D.H.Lehmer, 1960

 =
 To unsubscribe, send mail to [EMAIL PROTECTED] with
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Re: cdrecord, mount complain there is no disk

2002-11-24 Thread Shachar Shemesh


Orna Agmon wrote:


The primitive way is to do this with an ear-stick(??) (MAKLON 
OZNAYIM), dipped in alcohol, and exremely gently clean the eye manually. 
But of course this takes taking apart the CD. I have done this sucessfully 
on audio CDs readers, never on a burner.

And of course never open it when it is operating- LASER. (yes, i know you 
know, but I would not have slept had I not said it)
 

I have done it semi-succesfully on a CD-R once. It was sorta working 
afterwards, but it burned CDs only some systems could gulp, and others 
couldn't. I may have shifted something out of sync in the process. As 
the CD-R wouldn't work at all before that procedure, that was still 
considered a success of sorts, but beware.

   Shachar




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