Greg Freemyer wrote:
On Mon, Nov 3, 2008 at 1:17 PM, Mark Lord <liml@xxxxxx> wrote:
hdparm v9.2 is now available from sourceforge.
http://sourceforge.net/projects/hdparm/
New since v8.9 are:
1. Support for Device Configuration Overlay (DCO),
with the --dco-identify, --dco-freeze, and --dco-restore flags.
DCO is a feature set that enables vendors/OEMs to disable/hide
certain drive features (eg. NCQ, LBA48, ..) for whatever reason
(eg. compatibility with a specific b0rked BIOS).
This release of hdparm can display/reset DCO, but not selectively
disable features yet.
..
I'm very happy to see the DCO support go in.
There is a small army of "Computer Forensic" examiners which do their
forensic imaging via Linux and I'm sure many will feel the same.
..
Mmm.. never thought about that much before now,
but DCO is a nifty way to hide much of a drive from prying eyes.
Eg. Use DCO to restrict the drive to LBA28 accessible sectors
and also turn off LBA48 support, and then a lot of space becomes "hidden".
Until now!
Cheers
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