Very Computer

Hallo all
I've Problems to install Linux on a 486PC, with
a Chinon CDS-535    CD-ROM.
I'm searching for people who have this CD-ROM.
Can Linux deal with it?

thanx a lot       Soenke
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Yes, I have this CD-ROM drive.  You need kernels above 1.1.18 or so.  Of
course you also need to make sure your SCSI is supported.
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I have a CDS-535 drive on my Linux system and it works fine.  One thing
though, after a lot of experimentation I was NOT able to get the Chinon
SCSI card to function properly with Linux.  I ended up with a future
domain SCSI card which works fine (and is probably faster than the Chinon
one anyway)

Greg Corson

I have the same Chinon drive and use the interface card that comes
with the kit.  It was very hard and a little tricky to get it working.
But I did.  You will have to recompile the kernel to use it though.
I am running linux version 1.0.8 and the following steps got it all
working.

1)  edit /usr/src/linux/drivers/scsi/scsi.c
    add the line
                #define NO_MULTI_LUN
    at the top of the file and save the file.

2)  edit /usr/src/linux/drivers/scsi/Makefile
    replace the line
                AHA152X = -DDEBUG -DAUTOCONF -DIRQ=11 -DSCSI_ID=7 -DRECONNECT=0 \
                          -DPORTBASE=0X340 -DSKIP_BIOSTEST -DDONTSNARF
(Or the line that looks most like it)
    with the line
                AHA152X = -DGENERIC_NCR5380_OVERRIDE={{0x300,-1,DMA_NONE}} \
                          -DDEBUG_AHA152X -DAUTOCONF
    Note the 0x300.  This is the base address of the interface card.
    Make sure that you put the correct address here.  0x300 is the
    default so it should work - but check the manual just in case.

3)  Make the kernel.  Add it to LILO or create your boot disks.

4)  When you restart - at the LILO prompt - start your new kernel with
    ncr5380=0x300,0,255 as a parameter. (Remember use your base address)

It should work ok now.

To recap -- If you use the interface card that comes with the Chinon
CDS535 and you don't have any other SCSI cards in the computer this
approach should work.  It is confusing though.  Don't hesitate to
post or email additional questions.  Good luck.

p.s.  ( I don't really know if step 2 is does anything - but that
is how I got mine to work.)

Dominick Calabria