[arch-general] cdrecord instead of wodim

[Gerardo Exequiel Pozzi]

Joerg Schilling wrote:
> dev=ATAPI is a dirty trick that was needed in 2001 because the linus kernel
> guys have been unable to fix their kernel panics with PC-Card connected writers.
>
> Just use the _official_ SCSI address syntax. There is no need to specify
> anything additional. dev=1,0,0 or similar is sufficient. 
>
> Jörg
>
>   
OK Jörg thanks.

Something that I was unclear, because the documentation does not talk
about the devices names /dev/sr0 (SCSI CDROM)

Seems that for use this sintax official sintax (n,n,n) the sg (SCSI
generic) module needs to be loaded, unlike the use of _bad_ sintax
/dev/sr0 not need the sg module is loaded
cdrecord -scanbus (without sg module don't work)

I am interested not load the module sg, sg as the module not only
enables access to the cd-roms, but also hard drives


##For example without "sg" (only "sr_mod")

# cdrecord -scanbus
Cdrecord-ProDVD-ProBD-Clone 2.01.01a57 (i686-pc-linux-gnu) Copyright (C)
1995-2009 Jörg Schilling
...

##Using the cdrecord -scanbus -dev=ATAPI work

# cdrecord -scanbus dev=ATAPI
Cdrecord-ProDVD-ProBD-Clone 2.01.01a57 (i686-pc-linux-gnu) Copyright (C)
1995-2009 Jörg Schilling
...
scsibus0:
        0,0,0     0) 'HL-DT-ST' 'DVDRAM GH20NS15 ' 'IL00' Removable CD-ROM
scsibus1:
        1,0,0   100) 'HL-DT-ST' 'DVD-ROM GDR8163B' '0L23' Removable CD-ROM

# cdrecord dev=/dev/sr0 -checkdrive #*Works* (remember only sr_mod is
loaded)

##Now with sg module loaded...
# cdrecord -scanbus | grep "0,0"
Linux sg driver version: 3.5.34
        0,0,0     0) 'ATA     ' 'WDC WD6400AAKS-6' '01.0' Disk
        1,0,0   100) 'ATA     ' 'WDC WD6400AAKS-0' '01.0' Disk
        2,0,0   200) 'ATA     ' 'WDC WD5000AAKS-0' '12.0' Disk
        3,0,0   300) 'ATA     ' 'WDC WD5000AAKS-0' '12.0' Disk
        4,0,0   400) 'HL-DT-ST' 'DVDRAM GH20NS15 ' 'IL00' Removable CD-ROM
        6,0,0   600) 'HL-DT-ST' 'DVD-ROM GDR8163B' '0L23' Removable CD-ROM

and this is what we do not want to, I see the hard drives here, so I
avoid using the module sg.

Then my last question is, and I will be more than grateful: Is there any
way to use the syntax dev=n,n,n without using the module sg, and only
with the sr_mod module?


Many thanks Jörg for the support, will not give personalized support to
the public, thanks for the exception :)


PS (for Jörg): I hope not to be annoying.
PS (for Arch ML): Apologize to the list, but I think this is interesting
that they can read it publicly.


-- 
Gerardo Exequiel Pozzi ( djgera )
http://www.djgera.com.ar
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