Date: Wed, 30 Jan 2013 17:20:32 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Gary Aitken <freebsd@dreamchaser.org> Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: 9.1 install wipes out gpart boot blocks? Message-ID: <alpine.BSF.2.00.1301301656400.42000@wonkity.com> In-Reply-To: <510990EF.9040101@dreamchaser.org> References: <510990EF.9040101@dreamchaser.org>
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On Wed, 30 Jan 2013, Gary Aitken wrote: > I used gpart to set up a new disk, > then went through a 9.1 install. > Everything seemed to go fine, but when time came to boot the new drive, > it wouldn't boot. What did it say? > When doing the 9.1 install, > I selected the disk and had to assign the partitions to the various filesystems. > AFIK, I did not otherwise modify the filesystems. > > Does the 9.1 install process trash the boot areas? > > My gpart setup was: > > clean up (delete) the original partitions > gpart destroy ada3 These two steps can be replaced with gpart destroy -F ada3 > gpart create -s GPT ada3 > gpart bootcode -b /boot/pmbr ada3 > gpart add -t freebsd-boot -i 1 -s 512K -l gptboot ada3 > gpart bootcode -p /boot/gptboot -i 1 ada3 I do the bootcode in one step: gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 ada3 > gpart add -t freebsd-ufs -a 4K -b 1M -s 4G -i 2 -l fbsdroot ada3 # / > gpart add -t freebsd-swap -a 4K -s 2G -i 3 -l fbsdswap ada3 # swap > gpart add -t freebsd-ufs -a 4K -s 2G -i 4 -l fbsdvar ada3 # /var > gpart add -t freebsd-ufs -a 4K -s 2G -i 5 -l fbsdtmp ada3 # /tmp > gpart add -t freebsd-ufs -a 4K -i 6 -l fbsdusr ada3 # /usr It's not necessary to use partition numbers with "add", gpart will just use the next one available. Here are my notes: http://www.wonkity.com/~wblock/docs/html/disksetup.html
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