-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 01/22/2015 10:34 AM, One Thousand Gnomes wrote: > Unlikely. Apart from fdisk the setup is basically invisible. The > drive reports a block size and an offset. The firmware offset is > chosen so that the chassic DOS alignments in fdisk happen to just > fall nicely on 4K boundaries for partition starts. > > There is nothing special the OS does to deal with ATA/SATA 4K > sectors. Incorrect: the kernel bogus/synthetic "geometry" is the maximum allowed of 63 sectors per track, and the old dos default alignment for the first partition on the disk places its start at sector 63, which is not 4k aligned. The special thing that partitioning tools have to do is to align the partition start to a 4k boundary. For several years now, parted has defaulted to 1 MiB alignment, like Windows has done, which gives a 4k alignment. I don't recall if Ubuntu 10.04 is old enough to predate this change. You certainly do NOT want to use the cylinder alignment option in gparted. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBCgAGBQJUxV2jAAoJENRVrw2cjl5RjZIH/ijuJw1bfOxqHDi5PsfOjZqi yiH9wGiwJukiwTkfqXoR3hRLemP3WO7vMxf/Ub/+DhmLQR7F3iGlHwfDq/8wQzpQ 2MucBJDT0ARt/I9z/xhPK3bUVdj9ooSUJfHGklhyhijdceAi7M/HwYh9Hftx5Mrn 5qw0N0E6TLNLaNYraJEEqc2aATfXRFcfLrqI5pmRhoT+KCs6IFrggyj4F7uwiaNb QmrvUPzdAN5jmbVxm+sActWdDG/UDxIXeqLXxJ+N/OwYd4iPh6QNlsPv0/U1R71W i+ZEoNNH729N1JMQUN/qD7Ut4oNj2nqLzrsVh5K8Z5fRkIXYLIuUMgKn0KJJQDk= =3PnL -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
