can I get my Apple_partition_map partition back?

[Dan Burcaw]

There is a fix for this. It happens on dual-drive systems
under certain circumstances. I'm still working on an "easy fix utility"
but if you have this problem, send me a private email and I'll walk you
through a couple steps. By the way, the partition map is NOT being hosed
here. A label is actually what's getting mucked. It just happens, the
way its happening, OS X is not happy.

Thanks,
Dan

On Tue, 2003-04-29 at 23:43, Christopher Murtagh wrote:
> On Tue, 29 Apr 2003, bruce wrote:
> >Time to re-boot.  OOPS!  MacOSX now gives me the big circlewithaslash.
> >Booted into my backup YDL 2.3 (on external SCSI) and used pdisk to look
> >at partitions.  Ohmygod both my primary and backup OSX disks now have
> >partition 1 as Apple_Bootstrap.  MacOSX doesn't allow me to mount either
> >one so I can't restore.  Booting into OS9 I can still mount the disks and
> >see all the data (at least the OS9 drivers are still there).  I tried
> >pdisk, mac-pdisk, fdisk, drive setup, Norton Utilities, OSX Disk Utility
> >and FWB HD Toolkit to see if there was some way to restore the partition
> >map so OSX could recognize it.  I couldn't get any of those guys to help
> >me (pdisk at least said he was unable to create partitions of type Map).  
> >They all allow me to initialize though!
> >
> >Anyone have any ideas on how to get OSX to mount at least one of these
> >disks?
> 
>  I had a very similar problem to this recently. I went to boot into MacOS
> X (which I hadn't done in quite a while) and got the same
> 'circlewithaslash' that you mentioned. However, I couldn't mount the drive
> with *anything* after that. The only thing I could do at that point is use
> Data Rescue X (which I found on the web) to recover the data on the drive.
> *Major* pain, and Data Rescue X is sorta brain dead - but at least it
> worked.
> 
>  I had assumed that it was a problem with the FWB drivers on that drive, 
> but I'm not sure now. Other info of possible interest is that this machine 
> has two SCSI drives and an IDE drive in it. The installer crashed every 
> time at the disk partitioning part when I had the IDE drive connected. I 
> had to disconnect it to install YDL3.0. After that, I hadn't gone back to 
> MacOS X until this problem came up. Looks like the installer might have 
> hosed my partition map as well.
> 
>  Just out of curiosity, does your drive have FWB drivers on it as well? 
> Maybe this is part of the problem? Or maybe the YDL3.0 bootstrap installer 
> is wonky?
> 
> Cheers,
> 
> Chris
>