On 2010/03/10 10:14 (GMT+0100) Denys Vlasenko composed: >> Do we know of anything that requires 63s/255h? > 63s/255h is more or less "standard" now. When did this change? AFAICT, this "standard" only applies to desktops, while 63s/240h applies to laptops, older Compaqs, and some brain dead external/USB drive case controllers. > Alignment issues can be solved by picking a good multiple of > _heads_ or _cylinders_: > For first partition, pick the start at 8th head: > cyl 0 head 1 sector 1: LBA sector 63) - bad > cyl 0 head 8 sector 1: LBA sector 8*63) - good (4k aligned) > For any other partition, pick start cylinder which is a multiple of 8: > cyl 8*x head 0 sector 1: LBA sector 8*x*255*63 - good (4k aligned) > This will actually work well for *any* geometry, not only for 63s/255h. -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/ -- 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
