Date: Sat, 05 Jan 2013 19:43:28 -0500 From: Fbsd8 <fbsd8@a1poweruser.com> To: Christian Weisgerber <naddy@mips.inka.de> Cc: freebsd-questions@freebsd.org Subject: Re: bsdinstall misaligns partitions Message-ID: <50E8C8B0.60003@a1poweruser.com> In-Reply-To: <kc72kq$158v$1@lorvorc.mips.inka.de> References: <kc72kq$158v$1@lorvorc.mips.inka.de>
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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.
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