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Old 10-20-2005, 01:49 PM   #1
fborot
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SCSI Emulation confusion!!!


Hello

I am running FC3 and kernel 2.6.9-1.667. I started to learn how to write data to CDs in order to make my backups.
The output of "cdrecord -scanbus" tells me to use dev=0,0,0

But when I use the option "dev=0,0,0" I get a nasty error that says among other things:
"cdrecord: No such file or directory. Cannot open '/dev/pg0'. Cannot open SCSI driver.
cdrecord: For possible targets try 'cdrecord -scanbus'.
cdrecord: For possible transport specifiers try 'cdrecord dev=help'."

After searching in the web for a solution everything pointed to the fact that I needed to recompile my kernel with scsi-emulation, a very daunting task for me in the level I am currently in!!!!!!

After searching in this forum I saw a post where it was recomended to use the "dev" option using the full path to the "CD-RW" drive, which is /dev/hda and IT WORKED!!!!!!!!!!

So, I am confused now about using this in the future:

1- Is it true that kernel versions 2.4 or 2.4 and higher the scsi emulation is not needed anymore?
2- What is the explanation of this?

I like linux very very much, but these are the kind of things that always make go back to windows because sometimes I feel that either the HOW TOs are no always updated, each linux version/destribution requires its own solution, etc etc.

Wainting for several inspiring replys!!!!
regards
fborot
 
Old 10-20-2005, 02:15 PM   #2
Gort32
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Kernel 2.6 changed the way that apps can write to CD burners - you can now call the drive directly with /dev/hdx instead of using SCSI emulation. This is a good thing

For the record, you could also specify ide-scsi in GRUB to load SCSI emulation and be able to refer to the drive in SCSI #,#,# format.
 
Old 10-20-2005, 02:35 PM   #3
fborot
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thank you , yes it looks like a good thing.

Is cdrecord the only tool to write to IDE CD-WRs?
is there any other option/method that works?
 
Old 10-20-2005, 04:21 PM   #4
Gort32
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I really don't know...cdrecord just *works* so I've never felt the need to go out looking for other apps.

There are, however, many fine GUI-based frontends to cdrecord - there is no need to operate at a termain all the time. k3b is my personal favorite - I like it even better than Nero for Windows (and that is saying a lot - Nero rocks). There's also xcdroast and a few others - if you hunt around sourceforge you are likely to come across plenty of good frontends. cdrecord is almost always the one doing the real work in the backend but that doesn't meant that you have to actually invoke it manually.
 
Old 10-20-2005, 04:28 PM   #5
fborot
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Thumbs up

Thank you Gort32 , you have been very helpful
Regards
 
  


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