Date: Tue, 22 Sep 2009 13:57:05 -0500 (CDT) From: "Sean C. Farley" <scf@FreeBSD.org> To: freebsd-fs@FreeBSD.org Subject: Proper gmirror install Message-ID: <alpine.BSF.2.00.0909221354260.13933@thor.farley.org>
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I posted this about a week ago on freebsd-geom, but this list may be more appropriate for this. I have been experimenting with installing FreeBSD using only gpart from the 8.0-BETA4 DVD. It has been helping my understanding of GPT vs. MBR. Now, I would like to verify the setup[1] I have made and the messages I am getting from it. The basic setup is for both disks: Slice Type Size ad0s1 Windows7 system 100MB ad0s2 Windows7 20GB gm0s3 FreeBSD (non-swap) 20GB ad0s3 and ad1s3 ad0s4 FreeBSD (swap) 2GB I am creating the mirror prior to creating the BSD label. I also take it from this posting[2] that it is the preferred method. Everything appears correct, however, I am getting these messages: GEOM: ad0s3: geometry does not match label (255h,63s != 16h,63s). GEOM: ad0s3: media size does not match label. GEOM: ad1s3: geometry does not match label (255h,63s != 16h,63s) GEOM: ad1s3: media size does not match label. Questions: 1. Is this due to the BSD label being within the mirror and is considered safe? 2. Am I correct in my understanding that having the BSD label within the mirror takes care of the need to hardcode the provider's name and/or subtracting one from the c: partition? 3. Other than not being able to boot directly from those slices (untried; maybe not true) as opposed to the mirrored slice, is there any other concern doing it this way? 4. gpart allows more than four slices to be created. Are those primary, extended or something else? 5. Any other suggestions? I plan on putting this example on the wiki once it is verified to be correct. BTW, I must say I like using gpart after getting used to it. It would be nice if it could also handle creating and maintaining a hybrid MBR/GPT setup. Sean 1. http://people.freebsd.org/~scf/gmirror-install.txt 2. http://lists.freebsd.org/pipermail/freebsd-current/2009-June/008638.html -- scf@FreeBSD.org
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