cdrecord read error

[Sidney Abrahams]

-----Original Message-----
From: redhat-install-list-bounces at redhat.com
[mailto:redhat-install-list-bounces at redhat.com] On Behalf Of Rick Stevens
Sent: Monday, September 26, 2005 12:33 PM
To: Getting started with Red Hat Linux
Subject: RE: cdrecord read error

On Mon, 2005-09-26 at 11:17 -0500, Sidney Abrahams wrote:
> Rick,
> 
> Thank you very much, and yes I am using WS4, sorry for not specifying.
> It is much appreciated and very clearly explained.

Glad to help, Sidney.  So I take it that things are now working for you.

Oh, and by the way, we kinda prefer bottom posting (put your reply AFTER
what you're replying to) on this list.  It makes the logical flow of the
message threads easier to follow.


> -----Original Message-----
> From: redhat-install-list-bounces at redhat.com
> [mailto:redhat-install-list-bounces at redhat.com] On Behalf Of Rick Stevens
> Sent: Friday, September 23, 2005 06:10 PM
> To: Getting started with Red Hat Linux
> Subject: Re: cdrecord read error
> 
> On Fri, 2005-09-23 at 17:22 -0500, Sidney Abrahams wrote:
> > I used cdrecord to copy my data file backups to cd every day on Linux 9
> Red
> > Hat. I recently upgraded to Enterprise WS and now the cdrecord gives me:
> > Cdrecord: Input/output error. Read error on input file.
> > Yet I can use kde audio burner software to burn that same file to a cd??
> > The cdrw is configured on dev/hda, while on my old system it was on fake
> > scsi dev=1,0,0. cdrecord cannot read/write to ide devices?
> 
> You didn't specify if its WS4 or WS3.  WS4 uses a 2.6 kernel and WS3
> uses a 2.4 kernel.  Since it's not working any longer, I'm going to
> assume that you're using WS4 and a 2.6 kernel.
> 
> Under a 2.4 kernel, the IDE driver couldn't do ATAPI I/O (ATAPI is the
> way CD/CDR/CDRW and DVD/DVD+-R/DVD+-RW drives talk to the bus--
> essentially SCSI commands over an IDE interface).  To fix that, there
> was an "ide-scsi" driver that did the translation.  Hence, ATAPI devices
> appeared to the kernel as if they were native SCSI devices.
> 
> The 2.6 kernel's IDE midlayer is capable of handling the ATAPI I/O
> directly, so the ide-scsi driver is not necessary.  "dev=1,0,0" implies
> SCSI, and since there's no SCSI emulation any longer, "dev=1,0.0" won't
> work.
> 
> Under a 2.6 kernel and using an ATAPI drive, the proper syntax is
> "dev=ATA:1,0,0" (the ATA tells cdrecord to use the ATAPI interface
> rather than the default SCSI interface).  If you were using a native
> SCSI CD writer, then "dev=1,0,0" would still be appropriate.
> 
> I know this is more info than you probably need, but I'm a firm believer
> that just handing someone a solution without explaining _why_ it works
> is a bit of a disservice to the person originally asking the question.
> It also puts this kind of information into the list's archives so people
> can find it for themselves in the future.
----------------------------------------------------------------------
- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-               500: Internal Fortune Cookie Error                   -
----------------------------------------------------------------------


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Rick,

Yes the ATA command worked perfectly.

Sidney