linux user group brescia

Maurizio Paolini ha scritto:
> Ho avuto un problema simile (Fedora).  La situazione
> era dovuta a qualche cacchio di transizione nel modo di
> gestire i permessi di accesso ai dispositivi da parte di
> utenti che lavorano sulla console.
>
> La "vecchia" tecnica di gestione (gestita via pam) era di
> dare l'ownership del dispositivo all'utente che si collega
> sulla console, dopodiche' gli applicativi non avevano problemi.
>
> Ora (forse) l'idea e' di gestire tutto con helpers vari.
> Avevo risolto facendo a mano un "chown <utente> /dev/<...>"
>
> Poi l'ownership veniva automaticamente rimessa a root a fronte
> di qualche evento, ma in ogni caso eseguendo subito k3b poi
> non avevo problemi.
>
>   
Allora da linea di comando da root cdrecord funziona. Sembra quindi
essere un problema di permessi e/o di k3b.
Quello che trovo incredibile è che se faccio un cd dati da k3b stesso
questo non dà problemi.
Boh per il momento risolverò masterizzando da linea di comando. Mi
piacerebbe però capire cosa c'è che non va...

Per il gelma (uso gentoo)
il comando cdrecord -vv /tmp/download/netbsd-live-2007.iso mi dà
> cdrecord -vv /tmp/download/netbsd-live-2007.iso
> cdrecord: No write mode specified.
> cdrecord: Asuming -sao mode.
> cdrecord: If your drive does not accept -sao, try -tao.
> cdrecord: Future versions of cdrecord may have different drive
> dependent defaults.
> Cdrecord-ProDVD-ProBD-Clone 2.01.01a41 (x86_64-unknown-linux-gnu)
> Copyright (C) 1995-2008 Jörg Schilling
> TOC Type: 1 = CD-ROM
> Linux sg driver version: 3.5.27
> Using libscg version 'schily-0.9'.
> Using libscg transport code version 'schily-scsi-linux-pg.c-1.45'
> SCSI buffer size: 32768
> No target specified, trying to find one...
> Using dev=1001,1,0.
> atapi: 1
> Device type    : Removable CD-ROM
> Version        : 0
> Response Format: 3
> Capabilities   :
> Vendor_info    : 'BENQ    '
> Identifikation : 'DVD DD DW1640   '
> Revision       : 'BSJB'
> Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM.
> Current: CD-R
> Profile: DVD+R/DL
> Profile: DVD+R
> Profile: DVD+RW
> Profile: DVD-R/DL layer jump recording
> Profile: DVD-R/DL sequential recording
> Profile: DVD-RW sequential recording
> Profile: DVD-RW restricted overwrite
> Profile: DVD-R sequential recording
> Profile: DVD-ROM
> Profile: CD-RW
> Profile: CD-R (current)
> Profile: CD-ROM
> Feature: 'Profile List' (current) (persistent)
> Feature: 'Core' (current) (persistent)
> Feature: 'Morphing' (current) (persistent)
> Feature: 'Removable Medium' (current) (persistent)
> Feature: 'Random Readable' (current)
> Feature: 'Multi Read' (current)
> Feature: 'CD Read' (current)
> Feature: 'DVD Read'
> Feature: 'Random Writable'
> Feature: 'Incremental Streaming Writable' (current)
> Feature: 'Formattable'
> Feature: 'Restricted Overwrite'
> Feature: 'DVD+RW'
> Feature: 'DVD+R'
> Feature: 'Rigid Restricted Overwrite'
> Feature: 'CD Track at Once' (current)
> Feature: 'CD Mastering' (current)
> Feature: 'DVD-R/-RW Write'
> Feature: 'Layer Jump Recording'
> Feature: 'DVD+R/DL Read'
> Feature: 'Power Management' (current) (persistent)
> Feature: 'CD Audio analog play' (current)
> Feature: 'Time-out' (current) (persistent)
> Feature: 'DVD-CSS'
> Feature: 'Real Time Streaming' (current)
> Feature: 'Logical Unit Serial Number' (current) (persistent)   
> Serial: '9JB5U150F153159815PP'
> Feature: 'Disk Control Blocks'
> Feature: 'DVD CPRM'
> Drive current speed: 48
> Drive default speed: 48
> Drive max speed    : 48
> Selected speed     : 48
> Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
> Driver flags   : MMC-3 SWABAUDIO BURNFREE
> Supported modes: TAO PACKET SAO SAO/R96R RAW/R16 RAW/R96R LAYER_JUMP
> Drive buf size : 1073152 = 1048 KB
> FIFO size      : 4194304 = 4096 KB
> Track 01: data   700 MB
> track: 1 start: 0 pregap: 150
> Total size:      804 MB (79:39.34) = 358451 sectors
> Lout start:      804 MB (79:41/26) = 358451 sectors
>  41 00 00 14 00 00 00 00
>  41 01 00 10 00 00 00 00
>  41 01 01 10 00 00 02 00
>  41 AA 01 14 00 4F 29 1A
> Track 1 start 0
> Track 2 start 358451
>  41 00 A0 00 00 00 00 01 00 00 00 00
>  41 00 A1 00 00 00 00 01 00 00 00 00
>  41 00 A2 00 00 00 00 79 41 26 00 00
>  41 00 01 00 00 00 00 00 02 00 00 00
> Current Secsize: 2048
> ATIP info from disk:
>   Indicated writing power: 5
> Disk Is not unrestricted
> Disk Is not erasable
>   Disk sub type: Medium Type A, high Beta category (A+) (3)
>   ATIP start of lead in:  -11634 (97:26/66)
>   ATIP start of lead out: 359846 (79:59/71)
> Disk type:    Short strategy type (Phthalocyanine or similar)
> Manuf. index: 3
> Manufacturer: CMC Magnetics Corporation
>
>     Capacity  Blklen/Sparesz.  Format-type  Type
>       358451             2048         0x00  No Media Present or
> Unknown Capacity
> cdrecord: Cannot get next writable address for 'invisible' track.
> cdrecord: This means that we are checking recorded media.
> cdrecord: This media cannot be written in streaming mode anymore.
> cdrecord: If you like to write to 'preformatted' RW media, try to
> blank the media first.
> Blocks total: 358453 Blocks current: 358453 Blocks remaining: 2
> Starting to write CD/DVD/BD at speed 48 in real SAO mode for single
> session.
> Last chance to quit, starting real write    0 seconds. Operation starts.
> Waiting for reader process to fill input buffer ... input buffer ready.
> BURN-Free is OFF.
> Performing OPC...
> Sending CUE sheet...
>  41 00 00 14 00 00 00 00
>  41 01 00 10 00 00 00 00
>  41 01 01 10 00 00 02 00
>  41 AA 01 14 00 4F 29 1A
> cdrecord: CUE sheet not accepted. Retrying with minimum pregapsize = 1.
>  41 00 00 14 00 00 00 00
>  41 01 00 10 00 00 00 00
>  41 01 01 10 00 00 02 00
>  41 AA 01 14 00 4F 29 1A
> cdrecord: Success. send_cue_sheet: scsi sendcmd: no error
> CDB:  5D 00 00 00 00 00 00 00 20 00
> status: 0x2 (CHECK CONDITION)
> Sense Bytes: 70 00 05 00 00 00 00 12 00 00 00 00 30 00 00 00
> Sense Key: 0x5 Illegal Request, Segment 0
> Sense Code: 0x30 Qual 0x00 (incompatible medium installed) Fru 0x0
> Sense flags: Blk 0 (not valid)
> resid: 32
> cmd finished after 0.001s timeout 200s
> cdrecord: CUE sheet still not accepted. Please try to write in RAW
> (-raw96r) mode.
> cdrecord: Cannot send CUE sheet.
> cdrecord: Could not write Lead-in.
> Writing  time:    0.644s
> cdrecord: fifo had 128 puts and 0 gets.
> cdrecord: fifo was 0 times empty and 0 times full, min fill was 100%.

Saluti
aL