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[sindi keesan <keesan AT sdf.lonestar.org>]

This scsi cd-rom drive was recognized in DOS but not assigned a drive 
letter.  We used aspi8dos.sys from iomega.  (aspi.sys from DOS cdroast is 
apparently only the equivalent of ide-scsi and found our two ATAPI 
drives).

My partner unplugged the IDE CD burner and DVD-ROM drive (hdc and hdd) in 
case they were confusing DOS (too many CD_ROM drives), but this did not 
help in DOS.  We head earlier unplugged hdb, the IDE zip drive.  This left 
only one IDE drive plugged in.

With the aspi8dos.sys line in config.sys, we turned the computer off and 
eventually on and booted again into DOS (where I did not test the drive 
again) and linux (BL2) and suddenly it works in linux.  I can mount and 
read the AOL test CD.

Why would having two ATAPI drives interfere with using the SCSI CD-ROM 
drive?

I hope the scsi CD burner continues to work after we plug back the DVD 
drive (as hdc).


Anyway, my request for /dev/sr0 and maybe /dev/sr1 (scsi DVD or a second 
scsi CD-ROM drive, which we can take out of another external case) still 
holds.

This scsi CD-ROM drive was easier to set up (as regards software, not 
jumpers) than the IDE scsi-emulation approach.  It used one less module. 
I will revise /etc/profile to tell cdrecord and cdda2wav which drive to 
use as default.

In DOS do we need to add something to the mscdex line to assign a drive 
letter to the scsi drive?  Iomega runs some program in order to assign a 
drive letter to the scsi zip drive, which involves aspi8dos.sys among 
other things.

On Mon, 23 May 2005, sindi keesan wrote:

> BL2 came with many /dev/sda to /dev/sdg's and an assortment of /dev/sg's but 
> no /dev/sr's, needed to mount scsi cd-rom drives.  Please add to future 
> versions, Steven.
>
> mknod /dev/sr0 b 11 0
> mknod /dev/sr1 b 11 1
>
> Place jumper on terminator and on id 4 pins.
> Plug cable from drive to internal connector on aic7xxx card.
> Plug power to drive (and if desired also sound cable to sound card).
>
> insmod scsi_mod
> insmod sg
> insmod sr_mod
> insmod aic7xxx
>
> It detected the Adaptec scsi host and the HP cd-writer (8x)
>
> Put in an AOL test CD.
>
> mount /dev/sr0 /mnt
>
> cdrom:  open failed
> mount:  No medium found
>
> Did I omit a step?  Or is the drive dead?  It was given to us as an external 
> drive (multiread, takes 4 CDs), smaller-type (newer) connector, missing power 
> supply, by a friend who rescued it from being thrown out after it was donated 
> to where we all volunteer.  We have another older CD-burner with larger-type 
> connectors.  Inside the newer box, the drive itself took the older connector. 
> Since we had nothing else on the cable, we put on a jumper to terminate it - 
> is this needed when we have also terminated the scanner (which is last in the 
> chain after the zip drive, plugged into the external connector on the same 
> scsi card)?
>
> The neighbor who gave us these drives is trying to talk us into using scsi 
> hard drives which I presume use the same modules as the zip drive (scsi_mod 
> and sd).  Can I boot linux from DOS if DOS is on a scsi drive?
> The BIOS can be set to boot from scsi, of course.
>
> The burner is recognized in dos so we should try to read a CD there.
>
> devicehigh=aspi8dos.sys /d
>
> (taken from the Iomega set of .sys files
> and used in DOS with the scsi zip drive which needs module sd).
>
> To boot from a scsi drive in DOS do we need anything other than this sys file 
> and setting CMOS to boot from scsi?
>
> I have DOS and linux on the same drive because I ran out of IDE slots (IDE 
> CD-burner, DVD-burner, IDE zip drive) so am going scsi.
>
> We have the IDs set to 4 (burner) 5 and 6 (scanner and zip drive).  The card 
> is 7.
>
> keesan AT sdf.lonestar.org
> SDF Public Access UNIX System - http://sdf.lonestar.org
> _______________________________________________
> BasLinux mailing list
> BasLinux AT lists.ibiblio.org
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keesan AT sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org