Date: Tue, 07 Dec 2010 06:55:15 -0700 (MST) From: Warner Losh <imp@bsdimp.com> To: bruce@cran.org.uk Cc: src-committers@FreeBSD.org, pjd@FreeBSD.org, jhb@FreeBSD.org, mav@FreeBSD.org, ivoras@FreeBSD.org, svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org Subject: Re: svn commit: r216230 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <20101207.065515.41680033.imp@bsdimp.com> In-Reply-To: <20101207115106.GB68479@muon.cran.org.uk> References: <20101207110410.GE1700@garage.freebsd.pl> <4CFE1B0F.90908@FreeBSD.org> <20101207115106.GB68479@muon.cran.org.uk>
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From: Bruce Cran <bruce@cran.org.uk> Subject: Re: svn commit: r216230 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Date: Tue, 7 Dec 2010 11:51:06 +0000 > On Tue, Dec 07, 2010 at 01:31:27PM +0200, Alexander Motin wrote: > > Not necessary. Some places indeed may have some legacy requirements, > > for example, in theory MBR want partition to be aligned to "track > > boundary" (but I've seen many pre-formatted SD cards with MBR > > violating it to align partition to flash sector). Same time for BSD > > label I see no problem to align partitions any way we want. I also > > see no problems to make FAT cluster, UFS block/fragment, etc, to > > match some sizes. > > From a new installation of Windows 7 and FreeBSD CURRENT: > > GEOM: ada0: partition 3 does not start on a track boundary. > GEOM: ada0: partition 3 does not end on a track boundary. > GEOM: ada0: partition 2 does not start on a track boundary. > GEOM: ada0: partition 2 does not end on a track bounary. > > Partition 2 is the reserved partition while 3 is an NTFS partition, both > created in the Windows setup application. > > Since Windows isn't bothering to align partitions do we still need to > warn about it? The geom warnings are totally bogus, and no conclusion about anything can be drawn from them other than the disk partitions don't match the *FAKE* geometry cam creates for the disk. Warner
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