Date: Thu, 22 Nov 2012 08:46:42 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Leslie Jensen <leslie@eskk.nu> Cc: freebsd questions list <freebsd-questions@freebsd.org> Subject: Re: FreeBSD on SSD on ASUS P5KPL-C Message-ID: <alpine.BSF.2.00.1211220838590.14810@wonkity.com> In-Reply-To: <50ADE635.9090900@eskk.nu> References: <CAAHVa8thx4_fjQrTUwwGxERtCvTX9NnR59JxH7gQ38tq7irCZw@mail.gmail.com> <CAHHBGkph5j86wDpobasdtM%2BJZMQKt2eqcn8LKd4V0NzyDxR3Tw@mail.gmail.com> <CAAHVa8vm6vFa8ajiOJT3VWnvcZasdQM%2BnaJdjG9eLx%2Bj5F80CA@mail.gmail.com> <50A83993.50401@ShaneWare.Biz> <CAAHVa8uf65aaEWcKehojc0M67Psrn8Mpfj9GT=XR4GK47c%2BBWA@mail.gmail.com> <alpine.BSF.2.00.1211191235400.28618@wonkity.com> <CAAHVa8tZBPGPyuuU0bSwyPdN5ZtW_d4t9cJN7CcxEEaUXO7OGw@mail.gmail.com> <alpine.BSF.2.00.1211191801060.31205@wonkity.com> <CAAHVa8vsXUPn%2BndPsbR3GCdneu5iQSfVt0v--GgDvRvZL8bSCA@mail.gmail.com> <alpine.BSF.2.00.1211212020420.10378@wonkity.com> <alpine.BSF.2.00.1211212118100.10378@wonkity.com> <50ADE635.9090900@eskk.nu>
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On Thu, 22 Nov 2012, Leslie Jensen wrote: > Warren Block skrev 2012-11-22 05:19: >> On Wed, 21 Nov 2012, Warren Block wrote: >> >>> Got a chance to set up a scratch drive and check this. Turns out I >>> left out the step of creating a "slice" (MBR partition) to hold the >>> FreeBSD partitions. Also, GPT labels cannot be used in an MBR. Fixed >>> below. I will probably add this to my disk setup article because it >>> has come up more than once. >> >> The fdisk/bsdlabel section of my disk setup article has been rewritten >> to use gpart. Feedback welcome. >> >> http://www.wonkity.com/~wblock/docs/html/disksetup.html > > Thank you very much for your work on this. I have found this conversation and > your article very informative. > > I've already installed W7 on my SSD but I let the installation program create > the windows (MBR) partition. > > I'm going to install FreeBSD 9.1 as soon as it is ready so I want to ask if > it is straight forward if I follow your instructions for creating the bsd > slice and partitions, or if I need to check anything in order to get the > correct alignment? The process should be correct, but it's new, so there may still be unexpected inaccuracy. As far as alignment on MBR, the trick is to use -a when creating the FreeBSD partitions. MBR slices are aligned to CHS values, pretty much assuring they will not be aligned to 4K boundaries. Using -a4k when creating FreeBSD partitions inside those misaligned slices will make sure the partitions are correctly aligned.
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