Very Computer

How can I make my cdrom work?
On 7.1, in KDE, as root, I read a CD in my HP CDwriter 8100 and the
CDrom worked fine--teh first time only!
When I removed the first cd, and put a second cd in, it would not read
it. So, I upgraded to 8.2, hoping the bugs would go away. But they did
not.
Again, as root, in KDE, I was able to read a first CD, but any other
CDs--I could not read.
So, I unmounted the CDROM from teh command line. Then I tried to mount
the CDROM, "dev/hdb" but now it tells me there is no dev/hdb.

Well, that's a lie, because when I open harddrake, even though I have
only one cdrom, it shows TWO cdroms:
1. Hewlett Pack CDWriter Plus 8100 device /dev/hdb
BUS tYPE ATAPI/IDE
and
2.HP CDWriter+
device: /dev/scd0
Bus type: SCSI

WTF!? I have only ONE cdrom?

What can I do to make my CDROM work?

Did you dismount the first CD before removing it ?

Quote:> "dev/hdb" but now it tells me there is no dev/hdb.

It's /dev/hdb (the first slash is mandatory). Usually you also have
something like /dev/cdrom

Quote:> 1. Hewlett Pack CDWriter Plus 8100 device /dev/hdb
> BUS tYPE ATAPI/IDE
> and
> 2.HP CDWriter+
> device: /dev/scd0
> Bus type: SCSI

This means that the system recognized your CD as a CDWriter and automatically
enabled the ide-scsi emulation to allow you to record CDs. But it would
be better if you tell your system to leave the CD as only SCSI and
forget about the ide interface. This can be done adding
/dev/hdb=ide-scsi in your boot loader options.

My reading is, that if you tell the kernel to leave your CD as scsi and
access it trough /dev/scd0 instead of /dev/hdb it will work ok.

See the CD-Writing-HOWTO on www.linuxdoc.org for a complete documentation
about how the ide-scsi trick work.

Davide