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Date:	Mon, 02 Jun 2003 11:16:02 -0800
From:	"J. R. Fox" <jr_fox@pacbell.net >
Reply-To:
To:
Subject:	Re: values mismatch {was: Wayne's ide... IMPORTANT}

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Wayne wrote:

> This time PQmagic showed the drive as having an error: "the length of the
> partition in the partition table is incorrect, The CHS length is 16435440,
> the LBA length is 4104513, and the File System length is 4104513. Partition
> Magic has determined that the length can be changed to the correct value of
> 4112577". If I don't let it change the value (which I didn't on the second
> bootup of PQmagic), it shows me a partition error 110 on the display of the
> drive.

I think I still see a similar message (except for that last part) whenever I use
Drive Image 4 or PQ 6. IIRC, Tony said something to the effect that this is
related to how OS/2 reckons the drive layout vs. how the (Windows-centric)
Powerquest tools view it. It's been awhile, and I'm trying to remember, but I
think I have to let the PQ tools do their "synch-up" of the LBA and CHS
values, before they are willing to proceed on their merry way, and that this has
caused no evident problems so far. (Steven, if you have a different take on this,
I'd certainly like to hear it !) OTOH, when the PQ programs also volunteer to
change the partition types, I am watching for this, and my answer is "Hell NO !"

There is one treacherous place where PQ 6 just goes ahead and does it anyway.
Probably when you install it into Win -- I don't recall. We tripped over that badly
on the last system migration. It was annoying and outrageous enough, having the
whole damn drive suddenly go invisible as far as OS/2 is concerned, that I almost
uninstalled PQ (one probably should not be relying on this program run from Win,
*anyway* . . . ), but I settled for renaming the executable and killing the shortcuts.

OS/2 put those turkeys on the map, back in their early days, and this is how they
repay us ?!

Steven replied to Wayne:

> You used different drivers. The mismatches are not an issues as long as
> you use only tools that choose the same geometry.

Are we talking about the same thing?

I'd like to have a better, more specific grasp of what *not* to do here (along the
lines of 'never FDISK or PQ or _____ in an LVM environment' if that's what it
must come down to). I still use DI, and don't want to give it up. Partitition Magic
is something I very rarely use, and then most likely on someone else's all-Win
system, but it's good to have on hand if you need it. I think it is apt to be quite a
long wait, if ever, before DFSEE can do everything that PQ can do, or match its
ease of use.

Jordan

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