Subject: Re: SyQuest Weirdness
To: Greg Evans <mr_krak@televar.com>
From: Colin Wood <cwood@ichips.intel.com>
List: port-mac68k
Date: 01/22/1998 00:48:56
Greg Evans wrote:
> 
> Maybe someone can help me out here.....I dunno if this has a thing to do 
> with NetBSD or not, but I found it _very_ strange indeed.
> 
> I had re-formatted a SyQuest EZ135 cartridge for NetBSD and then decided 
> to not use it.  I forgot that I had formatted it that way (Was a long 
> time ago) and when I tried to use it on the Mac side it was _obviously_ 
> unreadble so I re-initialized it for Mac and copied about 100 Megs of 
> Data to it.
> 
> I left the cartridge in the Drive and booted into NetBSD....no biggie, I 
> had done this 100's of times before....
> 
> I took the cartridge to the local Business Journal today to give them my 
> ad copy, and the cart. wouldn't mount.  after poking around with 
> Silverlining it showed that the cartridge was still in Un*x 
> partitions...so I initialized it, and used Norton Recover on it and low 
> and behold all of my data was there..
> 
> Anyone have _any_ clue why this would happen?  It has had be confused all 
> day...

It sounds to me like some of the flag bits that indicate what kind of
partition it is weren't reset by the formatter.  It's kinda like when you
zap a partition in Mkfs but don't unmount the drive first.  You can still
write data to it, but the next time you try to mount it, it shows up as
the wrong partition type and won't mount.  Of course, the formatter could
also have simply corrupted the partition map.  I've seen the HDT PE do
this before...rather annoying actually.

Later.

-- 
Colin Wood                                 cwood@ichips.intel.com
Component Design Engineer - MD6                 Intel Corporation
-----------------------------------------------------------------
I speak only on my own behalf, not for my employer.