[comp.sys.mac.hardware] Syquest 44MB and A/UX

ryan@amc-vlsi.UUCP (Ryan Jorgenson) (02/07/90)

Can somebody clue me in on how to format a SyQuest 44MB 
removable for use under A/UX?  When I try dp(1), all I get is:
Disk write c3d0s31 Error: More data than SCSI device request
ed
generic disk c3d0s31 Retry limit: Logical block 0, physical
block 0

I seem to recall somebody posting a note about this, but I couldn't
get to the fix, since I don't have anon ftp capability.

Could somebody clue me in to how to fix this?

				--Thanks
				Ryan

jamespa@csuf3b.CSUFresno.EDU (James Paul) (02/09/90)

In article <863@amc-vlsi.UUCP> ryan@amc-vlsi.UUCP (Ryan Jorgenson) writes:
>
>Can somebody clue me in on how to format a SyQuest 44MB 
>removable for use under A/UX?  When I try dp(1), all I get is:
>Disk write c3d0s31 Error: More data than SCSI device request
>ed
>generic disk c3d0s31 Retry limit: Logical block 0, physical
>block 0
>

Ryan-
I've used Silver Lining 5.16 to format Syquest cartridges for A/UX.
I think it is provided with Cirrus brand Syquest drives, but it is
available as a separate product. It can format a variety of drives,
and includes some other functions. I've heard that Microtech provides
a formatter for A/UX with their Syquest drives, but I've never seen it.

BTW, Silver lining supports the different types of A/UX formatting as well.

Good luck.

-- 
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louis@asterix.drev.dnd.ca (Louis Demers) (02/10/90)

In article <863@amc-vlsi.UUCP> ryan@amc-vlsi.UUCP (Ryan Jorgenson) writes:
>
>Can somebody clue me in on how to format a SyQuest 44MB 
>removable for use under A/UX?  When I try dp(1), all I get is:
>Disk write c3d0s31 Error: More data than SCSI device request
>ed
>generic disk c3d0s31 Retry limit: Logical block 0, physical
>block 0
>

    A piece of software (written by Tony Cooper) called scsiFixErrorPage
    (from memory ;-) is available on info-mac (sumex) which 
    corrects that problem.

jamespa@csuf3b.CSUFresno.EDU (James Paul) writes:
>I've used Silver Lining 5.16 to format Syquest cartridges for A/UX.

	When you use your Syquest under A/UX, do you get "retry error messages" ?

>BTW, Silver lining supports the different types of A/UX formatting as well.
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 Can you explain ? Do you mean different partition setups ?

	 Thanks,
		 Louis


-- 
| Louis Demers              | DREV, Defence Research Establishment,Valcartier |
| louis@asterix.drev.dnd.ca | POBox 8800, Courcelette,Quebec, CANADA, G0A 1R0 |
|            (131.132.48.2) | Office: (418) 844-4424       fax (418) 844-4511 |
+---------------------------+-------------------------------------------------+

jamespa@csuf3b.CSUFresno.EDU (James Paul) (02/13/90)

In article <1990Feb10.145703.29208@asterix.drev.dnd.ca> louis@asterix.drev.dnd.ca (Louis Demers) writes:
>When you use your Syquest under A/UX, do you get "retry error messages" ?
>
 Thanks,
>Louis
>-- 
>| Louis Demers              | DREV, Defence Research Establishment,Valcartier |
>| louis@asterix.drev.dnd.ca | POBox 8800, Courcelette,Quebec, CANADA, G0A 1R0 |
>|            (131.132.48.2) | Office: (418) 844-4424       fax (418) 844-4511 |
>+---------------------------+-------------------------------------------------+

Not that I remember. I had no trouble copying to the cartidges, though.
Perhaps I was lucky. I wish I could stick them in and find out, but I'm
one of the people waiting for A/UX 1.1.1 (or whatever they number it) so
I can run it on my SE/30, which is now my only machine.

So perhaps I was in error. Silver Lining worked for _me_. Once. :-)

And yes, I did mean that it supported different types of AU/X partitioning.
The word escaped me when I posted.

James

-- 
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howards@pinball.wpd.sgi.com (Howard Simonson) (02/26/90)

I'm happy to report total sucess so far with the "Fix-Error-Page" procedure.
I've been able to run dp on my Syquest carts and set them up as A/UX
filesystems.  Fairly good notes come with the Fix-Error-Page program,
which talks a bit about how to make an A/UX bootable backup cartridge.

There are just a few points that I'm not sure about and the notes don't
explicitly cover.  Maybe someone on the net can enlighten me.

Using the standard Apple Quantum as a guide, there are some 9 partitions.
I gather the first block of the disk is the boot block and simply is never
defined in the SCSI partition map.  If I expect to make a MacOS bootable,
SASH partition on the HardCart I'll need the boot block written, right?
And this will just occur as normal when I get around to writing the 
System/Finder onto the SASH partition under MacOS, right?

Now there is this partition called the "Apple_Partition_Map" right at
blocks 1-64.  How does this thing relate?  What does it do?  My guess
is its a possible throwback to the days before everyone was doing true
SCSI partitioning.  Is this a must have for the MacOS boot phase?
If not, what goes at block 1+....  If this is a must have (like maybe
MacOS can't find the SASH partition without it?) what's the format,
how do I load it?  I would guess a straight copy of the 80meg version
wouldn't fly for a ~40meg HardCart.  Thankfully, the rest of the business
(i.e. creating FS/swap partitions) is fairly straightforward.

BTW, does anyone have a stock dp(1m) script that inits and build all
the partitions necessary for a bootable hardCart.  That would be a
real time saver and I'm sure you'd get a lot of net thanks.  Otherwise,
if and when I figure all this out and get it working, I'll try to post one.

Many thanks in advance for help with this stuff.  And a few thanks in
return for the pointers to fix-error-page, at least I'm backing up now!
----------------------------------------------------------------------
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		 a person with two watches is never sure.

Modern Translation: They build clocks into every piece of consumer
		    electronics just to keep us totally confused.
howards@ssd.sgi.com
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