James G. Sack (jim) wrote:
[snip]
rbw sent me some data that revealed the presence of EZ-Disk rather than
Ontrack DriveManager.
The remap63 trick says to ignore 63 sectors (per the DriveManager
trickery), which produces nonsense if you _aren't_ using DriveManager!
There is a remap option (as opposed to remap63) which says to skip _one_
sector, which is supposed to be the way EZ-Disk does its magic.
AFAIK, Rodney hasn't gotten a chance yet to go back and look with the
1-sector offset hda=remap.
I wonder if the EZ-Drive programs work the same across all versions. I
found that there was up to a version 9 supplied by Western Digital. If
the way it works changed at some version level, maybe the hda=remap
trick doesn't work any more. The last change I can see for this was
around 1996, but Western Digital currently supplies something called
Data Lifeguard. I haven't grabbed it yet to see if it's the same thing.
Recovery tools can do irreversible things. Best to:
a) have a backup .. the old recipe of working on a bit-copied disk is
appropriate for serious recovery (or forensic) work.
b) don't use a tool without understanding what it's going to do <heh>.
Yep. Depending on the cost of the data, if it's work more than $50 then
just buy a bigger disk, pop this disk and the new disk in a machine, dd
everything from the old disk to the new one, then only play with the new
disk.
Also a correction to my previous post. It looks like PRecover isn't even
out in alpha yet so that link can be ignored. I just saw it pop up when
doing a search on Sourceforge.
Gus
--
[email protected]
http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
