bsdinstall misaligns partitions
Fbsd8
fbsd8 at a1poweruser.com
Sun Jan 6 00:43:30 UTC 2013
Christian Weisgerber wrote:
> Shouldn't bsdinstall attempt to align partitions on 4k boundaries
> both for the benefit of 4k drives and flash storage?
>
> I just installed 9.1R i386 for fun and practice, in fact I installed
> it several times, and I played around with the partitioning options.
>
> * The modern GPT scheme reserves 34 sectors at the start of the disk.
> Your newly created partitions will start at offset 34 and will
> therefor be misaligned. I ended up configuring a 63 kB freebsd-boot
> partition, which ensures that the following partitions are aligned.
>
> * The old MBR scheme is even worse. The FreeBSD slice will start
> at sector 63, guaranteeing that any partitions contained within
> will be misaligned. There is no way to fix this, unless you
> shell out and run fdisk manually.
>
> * Funnily enough, the ancient BSD "dangerously dedicated" scheme
> is the only one that out of the box does not misalign partitions.
>
> I'm presumably not the first one to notice this issue, and yes, I'm
> mostly just venting.
>
Best advice is go submit a pr on this bsdinstall situation.
More information about the freebsd-questions
mailing list