Re: 2.6.0, cdrom still showing directories after being erased

["Fox!MURDER" <fox@murder.cz>]

Can you mount it even after issuing cdrecord -toc?

Tomas Zvala


Martin Povolný wrote:

>Dne: Tue, Feb 03, 2004 at 01:09:45PM -0600, Derek Foreman napsal:
>  
>
>>Just making cdrecord -eject at the end of the process will probably
>>workaround what is almost certainly a hardware bug.  or just eject the
>>disc by hand before attempting to re-use it.
>>    
>>
>
>yes, -eject helps, as well as ejecting manually or ejecting using 'eject'
>
>  
>
>>I had an old writer that did much the same thing.  After burning a disc,
>>it would still see it as blank until you ejected and reloaded.
>>
>>to Martin:
>>Does cdrecord -toc still show a valid toc after you blank the disc?
>>(definately buggy hardware)
>>    
>>
>
>no, it does not:
>
>$ cdrecord -dev=/dev/cdrom -toc
>Cdrecord-Clone 2.01a19 (i686-pc-linux-gnu) Copyright (C) 1995-2003 Jörg Schilling
>scsidev: '/dev/cdrom'
>devname: '/dev/cdrom'
>scsibus: -2 target: -2 lun: -2
>Warning: Open by 'devname' is unintentional and not supported.
>Linux sg driver version: 3.5.27
>Using libscg version 'schily-0.7'
>Device type    : Removable CD-ROM
>Version        : 0
>Response Format: 1
>Vendor_info    : 'HL-DT-ST'
>Identifikation : 'RW/DVD GCC-4480B'
>Revision       : '1.00'
>Device seems to be: Generic mmc2 DVD-ROM.
>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
>cdrecord.mmap: Success. read toc: scsi sendcmd: no error
>CDB:  43 00 00 00 00 00 00 00 04 00
>status: 0x2 (CHECK CONDITION)
>Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 24 00 00 00
>Sense Key: 0x5 Illegal Request, Segment 0
>Sense Code: 0x24 Qual 0x00 (invalid field in cdb) Fru 0x0
>Sense flags: Blk 0 (not valid)
>resid: 4
>cmd finished after 0.000s timeout 40s
>cdrecord.mmap: Cannot read TOC header
>cdrecord.mmap: Cannot read TOC/PMA
>pie:martin:~
>
>but I can still mount it, and see the erased data:
>
>pie:martin:~
>$ mount /cdrom/
>pie:martin:~
>$ ls /cdrom/
>Beskydy2003-2004
>  
>  
>
>>And does ejecting and reloading the disc make things work as expected?
>>    
>>
>
>it does
>
>  
>