On Tue, Dec 07, 2010 at 01:57:04PM +0200, Andriy Gapon wrote: > on 07/12/2010 13:51 Bruce Cran said the following: > > 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? > > > > No. > And another reason is that modern drives do not actually report any CHS > parameters, so I don't even know where we get them and how we (pretend to) > know > we track boundaries are.
Modern drives do actually report CHS parameters. The values reported rarely (if ever) have any relationship whatsoever to reality, but they are reported. I guess the reason for them still being reported is to satisfy old systems that do not undestand LBA and insist on getting CHS parameters. -- <Insert your favourite quote here.> Erik Trulsson ertr1...@student.uu.se _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
