cdrecord -scanbus help, was Re: [NCLUG] Re: configuring ssh on Ubuntu

[S Luke Jones]

Sean Reifschneider wrote:
> Then suck it up when that IP address changes.  Or, set up a DHCP server on
> one of your machines that can do MAC mappings.  I understand that you just
> want DHCP to do things for you, but if you really want a system to stay at
> an IP, nail them at it.
Yep. But, see here, Sean ... I'm already posting requests for help here 
for things like not checking whether my IP is what I think it is. Just 
imagine the amount of hand-holding I'd want if I actually tried to learn 
how to do that stuff.

Besides. "You don't know the power of the dark side." The emac is always 
there, beckoning, telling me that I should just get over wanting to 
control my own destiny. Just take the damned blue pill and be happy. 
Ahhh. Bliss.

But, since you have wakened the puzzled incompetent system admin I 
didn't even have to study to become, let me ask this one, because it's a 
real stumper. To me.

I'm using "Cdrecord-Clone 2.01.01a03 (i686-pc-linux-gnu) Copyright (C) 
1995-2005 Joerg [snip]" and I'm pretty sure that I have a CD recorder 
(actually a DVD recorder with LightScribe(R) technology) on this system, 
since I used it to install the bloody OS just a couple of days ago. Hold 
on. Let me check. Yep. Still there. Front-panel eject button still works 
and everything.

But. When I do a "cdrecord -scanbus" so I can then begin the process of 
re-learning how to burn a CD (it's been like four years since I did that 
on Linux), I get this message:

> (#)scsitransp.c 1.91 04/06/17 Copyright 1988,1995,2000-2004 J. 
> Schilling').
> scsibus3:
>         3,0,0   300) '        ' 'USB Disk        ' '1.16' Removable Disk
>         3,1,0   301) *
>         3,2,0   302) *
>         3,3,0   303) *
>         3,4,0   304) *
>         3,5,0   305) *
>         3,6,0   306) *
>         3,7,0   307) *

Which looks to me like my USB thumb-drive thingy is the only scsi-device 
on my pseudo-scsi bus (which isn't really there but apparently it would 
be a good thing if it was so we all pretend together; that was never my 
experience with scsi when I had some, but I'm willing to suspend my 
disbelief if you all say so). But watch this. I unplug the USB 
thumb-drive disk thingy, and voila:

> Cdrecord-Clone 2.01.01a03 (i686-pc-linux-gnu) Copyright (C) 1995-2005 
> Joerg Schilling
> NOTE: this version of cdrecord is an inofficial (modified) release of 
> cdrecord
>       and thus may have bugs that are not present in the original version.
>       Please send bug reports and support requests to 
> <cdrtools at packages.debian.org>.
>       The original author should not be bothered with problems of this 
> version.
>
> cdrecord: Warning: Running on Linux-2.6.17-10-generic
> cdrecord: There are unsettled issues with Linux-2.5 and newer.
> cdrecord: If you have unexpected problems, please try Linux-2.4 or 
> Solaris.
> cdrecord: No such file or directory. Cannot open '/dev/pg*'. Cannot 
> open SCSI driver.
> cdrecord: For possible targets try 'cdrecord -scanbus'.
> cdrecord: For possible transport specifiers try 'cdrecord dev=help'.
> cdrecord:
> cdrecord: For more information, install the cdrtools-doc
> cdrecord: package and read /usr/share/doc/cdrecord/README.ATAPI.setup .

Cool. What does it mean?

I (me the user) is in the cdrom group, and here is the contents of my 
/etc/cdrecord/cdrecord file:
> $ grep -v '^#' /etc/cdrecord/cdrecord | grep -v '^\s*$'
> CDR_DEVICE=/dev/cdrw
> CDR_FIFOSIZE=4m
> cdrom=          /dev/cdrom      -1      -1      burnfree
> $ ls -la /dev/cdrom /dev/cdrw
> lrwxrwxrwx 1 root root 3 2006-12-10 14:25 /dev/cdrom -> hdc
> lrwxrwxrwx 1 root root 3 2006-12-10 14:25 /dev/cdrw -> hdc
Anyway, it's too much for my dim wit to figure out tonight.

Luke