Date: Wed, 08 Dec 2010 01:41:20 +0200 From: Andriy Gapon <avg@freebsd.org> To: Matthew Jacob <mj@feral.com> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Bruce Cran <brucec@freebsd.org> Subject: Re: svn commit: r216269 - head/sys/geom/part Message-ID: <4CFEC620.80900@freebsd.org> In-Reply-To: <4CFEBF27.8010203@feral.com> References: <201012072046.oB7KkB4L079555@svn.freebsd.org> <4CFEAD09.30904@freebsd.org> <4CFEAFA6.4020103@feral.com> <4CFEB1AD.70906@freebsd.org> <4CFEBF27.8010203@feral.com>
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on 08/12/2010 01:11 Matthew Jacob said the following: > Geometry is still important. Trying booting a USB flash drive on all BIOS' with > a 63/255 geometry instead of a 64/32 geometry. Well, I don't know anything about USB... My point about modern HDDs still stands. > On 12/7/2010 2:14 PM, Andriy Gapon wrote: >> on 08/12/2010 00:05 Matthew Jacob said the following: >>> >>> On 12/7/2010 1:54 PM, Andriy Gapon wrote: >>>> on 07/12/2010 22:46 Bruce Cran said the following: >>>>> Don't warn if a partition appears not to be aligned on a track boundary. >>>>> Modern disks use LBA and create a fake CHS geometry that doesn't have any >>>>> relation to the on-disk layout of data. >>>> You repeated that statement, so I am picking on you :-) >>>> Can someone show me how/where exactly modern drives fakes CHS geometry? >>>> >>> cf cam_calc_geometry >> But that's not drive firmware code :-) >> It's us faking those parameters for ourselves for some unknown reason. >> Stupid us :-) But not the drives / manufacturers. >> -- Andriy Gapon
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