[ale] SOLVED (probably) (NOT!) Re: Rescuing an OS X HD from Linux - partition table hosed

[David Ritchie]

If you have a copy of Spinrite (www.grc.com), I have seen it pull off
some miraculous saves - not that I would trust the drive any more, but
it would allow you to get your data off the drive. Don't
expect it to be really fast at the highest levels, however. You would
need a PC to run it on - it is
only looking at readability of the blocks, and is not  file system
specific... so it should work with a
mac disk too.... spinrite isn't real cheap ($90 or so) but it is well
respected.

You might also simply go buy another drive,  and do a quick install of
the OS to test.  You are probably headed in that direction anyway
(unless you have AppleCare), so you might as well make the plunge...

-- Dave