On 10/28/14 09:25, Felix Miata wrote:
dE composed on 2014-10-28 08:54 (UTC+0530):
Felix Miata wrote:
http://www.seagate.com/tech-insights/advanced-format-4k-sector-hard-drives-master-ti/
may provide some insight WRT performance issues ensuing from other start
sector selections.
But that works even with multiples of 8. So we can start from sector 8
in MBR and 40 in GPT.
OK, as long as you know you'll never need a bootloader or other boot-time
software that requires the "wasted" space between MBR and first partition
sector. It seems M$ for Vista picked 2048 to reserve plenty of space for such
a *possibility* (not necessarily expectation), so for compat reasons and
other[1], other tools, including fdisk, decided to do the same at least by
default.
I've created partitions starting at sector 0x400 on 4k disks with no problems
observed.
Also I'm pretty sure fdisk uses 2048 even with -b 4096, but
unfortunately I get --
*** Error in `fdisk': malloc(): memory corruption: 0x0000000002507330 ***
with that switch.
Bug somewhere?
[1]
http://www.anchor.com.au/blog/2012/10/the-difference-between-booting-mbr-and-gpt-with-grub/
Yeah, I'll file that bug.
But I also think this fdisk 2048 behavior should be removed now or at
least provide a switch for the same and document this in the man page.
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