Re: SCSI CDROM

[stanmc <stanmc chicagonet net>]

Thanks for your response. I want to clarify my original post to indicate 
that this is a fresh install there is nothing on any of the hard disks. 
Last night I removed the portions of Linux that were on the two IDE 
drives. The SCSI drive is replacing a third IDE drive which was too 
small. The SCSI drive will not be the boot drive. I suppose I could 
change its SCSI-ID to 2 which means it will not be thought of by the 
SCSI adapter as a boot drive.

The card is an ISA Adaptec 1522a with jumpers. The computer is an IBM 
PS/1 100MHz. I have checked to see that there are no IRQ conflicts. The 
video is on 11 the Adaptec is on 10 since I can't move the video and the 
sound card is on 9. I have been able to low-level format the drive and 
check its media. I found a reference to installing Linux with SCSI 
drives when the card or drive are not found and it suggested that I type 
the following linux aha152x=0xdc000,10,7,1. That corresponds to my port, 
irq,scsi-id but I have no idea what the 1 at the end is for. The drive 
is SCSI-ID 0 (zero). I also found a reference to telling Linux the HD 
and its parameters HD=cylinders,heads,sectors. I will try that in a 
little while, as soon as I find the appropriate values.

Rick Stevens wrote:

> stanmc wrote:
>
>
> > If you don't mind, I'd like to piggyback onto this. I have a SCSI 
> > controller and SCSI drive that are not recognized at install.
>
> [snip]
>
>
> > The comptuer is an old IBM Pentium 100 (1995) with 800 and 500 MB IDE 
> > drives and a Quantum Lightning 730MB drive. Any help would be much 
> > appreciated. I have seen references in my reference books about being 
> > asked if I have any SCSI devices, but at install time it never does, and 
> > the drive does not show up in DiskDruid or fdisk.
>
>
> What model of Adaptec is it?  Is it ISA or PCI?  It may be that it's
> not being seen if it's ISA due to your BIOS settings or that there's
> no driver for the card.
>
>
>
> > Chris wrote:
> >
> >
> > > This is a multi-part message in MIME format.
> > >
> > > ------=_NextPart_000_0068_01C1778D.8BD6F8A0
> > > Content-Type: text/plain;
> > >    charset="iso-8859-1"
> > > Content-Transfer-Encoding: quoted-printable
> > >
> > > I have just installed a SCSI CD-RW and a SCSI controller in my system.  =
> > > When I did the original install of RedHat 7.2 I used a IDE CDROM.  I =
> > > added the SCSI stuff after the install.  When I boot up, the kernel 
> > > sees =
> > > the SCSI controller but does not see the Plexor SCSI CD-RW.  I've used =
> > > dmesg to verify this. The BIOS sees it fine and if I but a Linux boot 
> > > CD =
> > > it will try to boot off of it.  Does this mean I have to recompile the =
> > > kernel with SCSI CD support or is there another way?  I've used this =
> > > type of CD in other identically  configured Linux boxes and it works =
> > > find, but I have never added one after the install.
>
>
> The driver isn't being loaded.  We need to know which kind of SCSI
> adaptor it is, or if you know which driver it needs, try
>
> 	modprobe drivername
>
> For example, for an Adaptec 2942 using the AIC7xxx chipset:
>
> 	modprobe aic7xxx
>
> That should load the driver and you should be able to see the drive.
> ----------------------------------------------------------------------
> - Rick Stevens, SSE, VitalStream, Inc.      rstevens vitalstream com -
> - 949-743-2010 (Voice)                    http://www.vitalstream.com -
> -                                                                    -
> -     "Daddy, why doesn't this magnet pick up this floppy disk?"     -
> ----------------------------------------------------------------------
>
>
>
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