[SPARCbook] (no subject)

[Keith Howick]

Oscar,

No, the line ending in "sd6" simply indicates your 3XP tried to read the drive,
not that anything in the drive was actually read.

I had this same problem: a 3XP, the 2.5.1/D.0 OS, the Plextor drive. Identical. I
simply removed the jumper as Ken said, problem immediately solved. The jumper
forces the drive to 512-block mode, removing it places it in 2048-block mode.

Fair warning: if this is an identical situation then your cd is in an external
stack. Taking the multi-layer stack apart wasn't too difficult (patience is a
virtue here), but be *very careful* when you remove the CD (you must remove the
CD) and the wires attached at the back. *write down their order*. I made the
(silly, childish, impatient) mistake of not doing so, and I spent hours afterwards
trying to find the correct combination again.

-Keith Howick

Oscar.G.Farah at census.gov wrote:

> Ken,
>
> Thanks for the quick reply. Let me ask this:  Was the data " SunOS Release 5.5
> ... (sd6):" obtained by reading the CD? If yes, does
> this imply that the beginning of the CD has 512 byte blocks and the rest
> of it has 2048??
>
> Oscar Farah
>
> Your plextor drive should have a jumper on the back, for something like
> sector size. You need to change that jumper from whatever it currently is
> to
> boot the off the drive.
>
> It may be known as boot block, sector size, unix boot, or something else -
> it is *not* TERM, Parity, or test, these are the other jumpers that should
> be available...
>
> You can try and look up a manual at the Plextor site, or you can look up
> the
> SUN CD_ROM FAQ off of sunhelp.org.
>
> HTH,
>
> Ken
>
> ----- Original Message -----
> From: <Oscar.G.Farah at census.gov>
> To: <sparcbook at sunhelp.org>
> Sent: Thursday, November 09, 2000 6:47 AM
> Subject: [SPARCbook] (no subject)
>
> > 1. I purchased a copy of: "Solaris 2.5 for Sparcbook 3 Version D.0" from
> > Tadpole to install on my 3XP.
> >
> > 2. Using the "probe-scsi"command, I got the following response for the
> > cdrom:
> >
> > Target 6
> > Removable Read Only Device      Plextor CD-ROM PX-4XCS 1.011005/94 18:00
> >
> > 3.  When I gave the command "boot cdrom",  I got the following response:
> >
> > SunOS Release 5.5 Version D.O [UNIX (R) System V Release 4.0]
> > Copyright (c) 1983-1995, Sun Microsystems, Inc.
> > Copyright (c) 1992-1996, Tadpole Technology PLC.
> > WARNING: /iommu at 0, 10000000/sbus at 0, 10001000/espdma at 4, 8400000/esp at 4,
> > 8800000/sd at 6,0 (sd6):
> >
> > 4. Then after a while:
> >
> >        Rd capacity block size (512) disagrees with sector size (2048)
> >
> > 5.  And was not able to go further.
> >
> > I have no experience with Tadpole ...  Can any one tell me what I am
> doing
> > wrong and what I can do to install the operating system.
> >
> > PS.  the internal hard drive is target 3, the floppy target 5 and the
> > CDROM is new - undamaged.  the 3XP has 64 MB ram and 1 GB drive.
> >
> > Oscar Farah
> >
>
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