[Discussion] Already A Boot Problem (~Resolved)

[Thomas Clayton]

Dear POSSI:

I haven't "heard" any disagreements about what I've written SO,

I PRESUME I was correct. You _ONLY CAN_ boot from the same type of disc that a SCSI optical drive _IS_.

That having been concluded, I did as I stated in the letter. I installed the XM-6401 RO_DAD into system for eCS (and the like). Now, I've had some _OTHER_ problems _since_ but they're for a different letter.

Sincerely,

Thomas Clayton


--- On Mon, 11/16/09, Thomas Clayton <topcatdrc at yahoo.com> wrote:

> From: Thomas Clayton <topcatdrc at yahoo.com>
> Subject: [Discussion] Already A Boot Problem
> To: "POSSI Discussion" <discussion at lists.possi.org>
> Date: Monday, November 16, 2009, 4:13 PM
> Dear POSSI:
> 
> 
> For my Hardware setup see my immediately previous letter,
> "Commencing Installation".
> 
> Well, I've tried to "check out" my recently completed
> assembly (hardware, not programming). I've noticed a problem
> already. When I went to check its memory ("MemCheck 86") by
> booting from a DAD in the Toshiba DVDD (ID = 4), the system
> would NOT boot! Even though ALL settings seem (ARE) correct,
> the system would NOT boot in that configuration.
> 
> This was verified by placing the DAD into the Plextor
> RW-DADD and resetting the SCSI boot device to its ID (5).
> Then the boot took place normally. Also, when a DVD (SUSE
> Enterprise Linux) was placed into the Toshiba - and it was
> reset to be the boot device - a boot DID occur.
> 
> Has ANYone else seen this behavior? 
> 
> I've never seen it in ATAPI DVDDs. There, either kind of
> COD (DAD or DVD) will boot the system.
> Here it seems ONLY the matching COD will. Hmmm. So, for OS
> installation purposes I may ?HAVE TO? Hw install the Toshiba
> XM-6401 RO-DADD - in order to get a decent speed of
> installation. The Toshiba DVDD, btw, is rated at the same
> speed for reading DADs as the Toshiba DADD.
> 
> One other thing just occurred to me: Since the DVDD is an
> ex-SUN unit, could the block size (512KB or 2048KB) setting
> be causing this? (I'd just left the jumper where it was when
> it came to me. To test it, I'd run it connected to another
> system (W3C), which indicated it could read DADs. So I
> figured it was working - which I wanted to confirm upon its
> reception - and I thought it is configured correctly.
> 
> 
> Sincerely,
> 
> Thomas Clayton
> 
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