I've installed in my box Mandrake Linux 8.1. Everything inside it works fine (until now, at least) except my three CD reader and writers connected through an Adaptec 1510 SCSI.
I can see the adapter in my hardware setup, but no cdroms at all (of course this means that I can't burn any cd).
Can somebody help me? How do I make Linux see my scsi devices?

Do "pnpdump" and see if the device is listed, if so you'll need to set it up using the isapnptools. The plug and pray How-To has some more info.

It doesn't accept the command 'pnpdump'. How do I give it?

Check to see if you have the isapnptools rpm installed.

Yes it is ... checked in Mandrake software whatever (installed).

Then?

Remember that I can see my adapter in the Hardware installed, I just can't see the devices....

Are you doing "pnpdump" as root?
The cd writing How-To has the info on setting up a drive and you'll need the correct modules loaded as well, do "lsmod" (as root) and look for scsi modules in the list.

With 'lsmod' I can find a scsi_mod that says to be used 3 (??) then an AUTOCLEAN and other three modules between brackets [sd_mod sr_mod sg].
Can you give a little bit more of a hint? I tried to check the How to too, but doesn't seem to me explains the installation of the devices... (if u can pinpoint where, I'll be really grateful).
I also tried the command cdrecord -scanbus which gives me back an 'No such a file or directory. Cannot open SCSI driver. For possible targets try cdrecord -scanbus make sure you are root' (of course I gave this command from root).

I think you need to configure the isa scsi card first.

How?

With the isapnptools.

Where do I find them? How do I use them? Is there any manual?

what are the isapnptools? How do I launch them? Is there a graphical interface for them in Mandrake 8.1?

I found in Mandrake a shell that allows me to set up my ISA pnp devices and I can actually see my board, with its correct name and everything else, but when I go to accept the settings (just the selection of the IRQ) it tells me that there is a failure. Now the board is ok (it works in Windows). Is there any way to test it or to auto set it?