Date: Fri, 10 Jul 2009 21:11:05 -0500 From: Scot Hetzel <swhetzel@gmail.com> To: Craig Rodrigues <rodrigc@crodrigues.org> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: How to create ZFS on Root using MBR slices? Message-ID: <790a9fff0907101911y7143ed4bnbb050d78ebc21558@mail.gmail.com> In-Reply-To: <20090710211809.GA84773@crodrigues.org> References: <790a9fff0907101159w495b644dge4a4bd81de0bda9b@mail.gmail.com> <20090710211809.GA84773@crodrigues.org>
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On Fri, Jul 10, 2009 at 4:18 PM, Craig Rodrigues<rodrigc@crodrigues.org> wrote: > On Fri, Jul 10, 2009 at 01:59:32PM -0500, Scot Hetzel wrote: >> Is there anything wrong with the above install procedure for creating >> a ZFS Root MBR Slice install? > > There are some examples here: > > http://wiki.freebsd.org/ZFSOnRoot > > They are not *quite* what you did, i.e. > example 1 uses a UFS file system to contain /boot > example 2 uses GPT partitioning, not MBR > > Is the stuff there close at all to what you tried? > > -- > Craig Rodrigues > rodrigc@crodrigues.org > I originally had a UFS root, with ZFS /usr and I wanted to go for a complete ZFS solution, no UFS /boot. I was thinking of using the GPT partitioning, but didn't know how to convert my existing MBR drive to a GPT drive and still be able to tripple boot betweeen FreeBSD, Windows XP, and Quick Play. To create my steps to create a ZFS-Only MBR install, I used ideas presented from several sources: 1. ZFSOnRoot w/UFS Boot example 2. ZFS-Only System GPT example 3. FreeBSD root on ZFS http://74.125.155.132/search?q=cache:DzGFvHEH2NwJ:yds.coolrat.org/zfsboot.shtml+zfsboot+freebsd&cd=1&hl=en&ct=clnk&gl=us 4. Booting Freebsd from a root ZFS pool w/standard MBR and partition table http://www.clearchain.com/blog/posts/booting-freebsd-from-a-root-zfs-pool-using-a-standard-mbr-and-partition-table The only thing that wasn't clear is how to write the zfsboot to the drive. Do I need to write zfsboot to ad0, ad0s1, ad0s3? Do I need to skip the first 16 sectors on ad0s3 to save room for zfsboot? Scot
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