Chinon CD-ROM <> Linux...?

Chinon CD-ROM <> Linux...?

Post by Richard Irela » Sat, 15 Oct 1994 10:49:41



Greetings
  Just picked up the Trans-Ameritech Slackware CD-ROM.  Linux recognizes
my 3 disk drives on the Adaptec SCSI, and the ElinkIII network card, but
cannot find the CD-ROM.
  In DOS, I load a separate device driver for the Chinon (CHINON.SYS) and
it works fine.  The CD-ROM is external, and has it's own 'SCSI' board - at
least, I assume its SCSI.  
  Any one have any ideas?  So far, my workaround was to copy the entire
Slackware distribution tree to the hard drive in DOS, then install from
that.  Most annoying, and does not allow the nifty extras that
Trans-Ameritech distributes.
  Thanks in advance

Rick

--
*****************************************

* Senior Systems Analyst                *
* Detroit Computing Center, Michigan    *
*****************************************

 
 
 

Chinon CD-ROM <> Linux...?

Post by Frederik Haesbrou » Thu, 20 Oct 1994 23:26:42



> Greetings
>   Just picked up the Trans-Ameritech Slackware CD-ROM.  Linux recognizes
> my 3 disk drives on the Adaptec SCSI, and the ElinkIII network card, but
> cannot find the CD-ROM.
>   In DOS, I load a separate device driver for the Chinon (CHINON.SYS) and
> it works fine.  The CD-ROM is external, and has it's own 'SCSI' board - at
> least, I assume its SCSI.  
>   Any one have any ideas?  So far, my workaround was to copy the entire
> Slackware distribution tree to the hard drive in DOS, then install from
> that.  Most annoying, and does not allow the nifty extras that
> Trans-Ameritech distributes.
>   Thanks in advance

> Rick

> --
> *****************************************

> * Senior Systems Analyst                *
> * Detroit Computing Center, Michigan    *
> *****************************************

I have a CHINON 431 (an old one) and my problem was to make it
work with OS/2. On a OS/2 list I found information of a betadriver.
The docs supplied stated that
it would only work if the CDRomdrive was connected to a real, supported
SCSI controller. So I looked for a Adaptec 1522A but I had still a problem :
The connector on my Chinon has 40pins where a 'normal' SCSI connector has 50pins.
I searched (and searched, and ... : a month) and found the names of the pins on both SCSI and my Chinon, and finally made myself a cabel 50 to 40 pins SCSI !
(please mail me for further specs)

When I installed Linux, it just recognized my Chinon :-))

Another remark though : I recently experienced problems with my DAT (HP37450A)
who sits on the same SCSI bus. I figured out that disconnecting my CDRom solved
the problems ..... :-(((

Good luck,

Frederik


 
 
 

Chinon CD-ROM <> Linux...?

Post by Aaron Mar » Mon, 24 Oct 1994 01:59:37


[snip]
: When I would try to boot the Slackware 1.1.1 boot floppy my system would
: hang just after printing a message about resetting for second half retries.
: I finally got my system up by borrowing a friend's Toshiba CD-ROM, installing,
: and then building a kernel with the Chinon drive added to the blacklist.

: My system is a 486-66 with an ultrastor 34F and a Conner CP30540 drive.

: >1.16) CD ROM questions:
: >
: >Manufacturer:Chinon
: >Model:CDS-535
: >Type [IDE/SCSI]:SCSI
: >ALPHA? [Y/N]:
: >Comments:
: I had major problems getting this drive to work.  My solution was to add the
: following line to the blacklist array in drivers/scsi/scsi.c
:    {"CHINON","CD-ROM CDS-535","Q14"},
: This was still necessary after upgrading the firmware to rev Q20.

I had an identical problem with a Chinon 535 with firmware Q14 and an
Adaptec 1520.  Apparently the CDS-535 does not like to be polled on LUNs >
0.  Here's how I solved it ( with Slakware, at least )

        First, you need Slackware bootkernel 2.0.1 or newer.  THIS WILL NOT
WORK WITH Bootkernel 2.0.0 - I know, it gave me fits for months.  When you
boot with the boot disk to install, at the LILO "boot:" prompt, I typed
"mount max_scsi_luns=1" - you may need to add other parameters (if you have
a PAS16, etc ) - but this will keep the kernel from polling LUNs > 0 for
that boot - then, when you have Linux installed ( I had to use disks - I
stil can't mount the CD-ROM ):

        if you have a distribution with Bootkernel 2.0.1 or greater, add
"append="max_scsi_luns=1"" to lilo.conf

        if not, add the chinon to the blacklist as suggested, and recompile
your kernel ( good suggestion anyway ).

Aaron Marsh

 
 
 

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