sudden CD burner failure

Michael Hennebry hennebry at web.cs.ndsu.nodak.edu
Tue Sep 13 16:25:48 UTC 2005


I burned a CD using an iso image.
The CD worked.  It is mountable.
It's files are there.
Feeling paranoid, I tried to burn
another CD with the same image and
the same command.  cdrecord didn't
give me any complaints it hadn't
given me before, but the CD didn't work.
mount /dev/hdd
produced
/dev/hdd: Invalid argument
mount: /dev/hdd: can't read superblock

Some of my effort:
[root at hobbes tmp]# cdrecord  -dao dev=ATA:1,1,0 bin.iso
Cdrecord-Clone 2.01-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg Schilling
Note: This version is an unofficial (modified) version with DVD support
Note: and therefore may have bugs that are not present in the original.
Note: Please send bug reports or support requests to http://bugzilla.redhat.com/bugzilla
Note: The author of cdrecord should not be bothered with problems in this version.
scsidev: 'ATA:1,1,0'
devname: 'ATA'
scsibus: 1 target: 1 lun: 0
Linux sg driver version: 3.5.27
Using libscg version 'schily-0.8'.
cdrecord: Warning: using inofficial libscg transport code version (schily - Red Hat-scsi-linux-sg.c-1.83-RH '@(#)scsi-linux-sg.c        1.83 04/05/20 Copyright 1997 J. Schilling').
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   :
Vendor_info    : 'HL-DT-ST'
Identifikation : 'CD-RW GCE-8481B '
Revision       : 'C102'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-2 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Speed set to 8467 KB/s
Starting to write CD/DVD at speed  48.0 in real SAO mode for single session.
Last chance to quit, starting real write    0 seconds. Operation starts.
trackno=0
cdrecord: WARNING: Drive returns wrong startsec (0) using -150
Track 01: Total bytes read/written: 23392256/23392256 (11422 sectors).
[root at hobbes tmp]# mount /dev/hdd
/dev/hdd: Invalid argument
mount: /dev/hdd: can't read superblock
[root at hobbes tmp]# mount -t iso9660 /dev/hdd
<a longer error message>

The iso image is correct.
'Twas tested with loopback mounting.

-- 
Mike   hennebry at web.cs.ndsu.NoDak.edu
"There are three kinds of people,
those who can count and those who can't."





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