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| Subject: | Linux HPA status |
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| Date: | Wed, 14 Sep 2005 09:23:58 -0400 |
All, There have been discussions on this list before about how Linux treats HPAs. There was a recent (long) thread on LKML about changing the behavior. http://testing.lkml.org/slashdot.php?mid=600133 Nothing was resolved, but it looks like a boot option to allow access to the normal disk space and the hpa space independently may be forthcoming. If nothing else, it was interesting to read of some of the various uses of HPAs (and some of the problems having an HPA causes). I was especially surprised to read that the IBM Thinkpad has a BIOS option to enable/disable the HPA on the internal disk. (I have not verified that.) It also appears that certain computers routinely disable the HPA protection, so an image of these sysmtems should be viewed as the entire disk. In other cases (more often?), the computer leaves the HPA in place and the normal and HPA space should be treated as seperate images. Greg -- Greg Freemyer The Norcross Group Forensics for the 21st Century
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