Date: Tue, 26 May 2009 11:26:06 +0200 From: Mickael MAILLOT <mickael.maillot@gmail.com> To: Philipp Wuensche <cryx-freebsd@h3q.com> Cc: Lorenzo Perone <lopez.on.the.lists@yellowspace.net>, FreeBSD Stable Mailing List <freebsd-stable@freebsd.org> Subject: Re: ZFS boot on zfs mirror Message-ID: <ea7b7b810905260226g29e8cbf5ic75a59b979f6cd42@mail.gmail.com> In-Reply-To: <4A1B0B4F.1020106@h3q.com> References: <29579856-69F7-4CDC-A52A-B414A40180ED@yellowspace.net> <4A1B0B4F.1020106@h3q.com>
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Hi, i prefere use zfsboot boot sector, an example is better than a long talk: $ zpool create tank mirror ad4 ad6 $ zpool export tank $ dd if=3D/boot/zfsboot of=3D/dev/ad4 bs=3D512 count=3D1 $ dd if=3D/boot/zfsboot of=3D/dev/ad6 bs=3D512 count=3D1 $ dd if=3D/boot/zfsboot of=3D/dev/ad4 bs=3D512 skeep=3D1 seek=3D1024 $ dd if=3D/boot/zfsboot of=3D/dev/ad6 bs=3D512 skeep=3D1 seek=3D1024 $ zpool import tank $ zpool set bootfs=3Dtank tank $ zfs set mountpoint=3Dlegacy tank add vfs.root.mountfrom=3D"zfs:tank" to your loader.conf now you can boot on ad4 or ad6 Source: http://www.waishi.jp/~yosimoto/diary/?date=3D20080909 2009/5/25 Philipp Wuensche <cryx-freebsd@h3q.com>: > Lorenzo Perone wrote: >> >> Hello to all, >> >> Having licked blood now, and read the news from Kip Macy about >> >>> - =A0zfs boot for all types now works >> >> >> I was wondering if anyone has some updated tutorial on how to achieve a >> zfs-only bootable FreeBSD with a mirrored zpool. > > My own howto and script to do the stuff automated: > http://outpost.h3q.com/patches/manageBE/create-FreeBSD-ZFS-bootfs.txt > > But beware, it is meant to use with > http://anonsvn.h3q.com/projects/freebsd-patches/wiki/manageBE > afterwards. But the steps are the same. > >> Searching around I found this tutorial on how to set up a ZFS bootable >> system, which is mostly straightforward: >> >> http://blogs.freebsdish.org/lulf/2008/12/16/setting-up-a-zfs-only-system= / >> >> However it leaves a few questions open... How am I supposed to make a >> zfs mirror out of it? Suppose I have ad4 and ad6, should I repeat the >> exact same gpart-steps for both ad4 and ad6, and then make a zpool >> create data mirror ad4p3 ad6p3? > > Exactly. > >> How about swap? I suppose it will be on >> one of the disks? > > I keep swap in a seperate partition. You could either use two swap > partition, each on one disk or use gmirror to mirror a single swap > partition to be safe from disk crash. > >> And what if I start with one disk and add the second >> one later with zpool attach? > > This will work. Just do the same gpart commands on the second disk and > use zpool attach. > > greetings, > philipp > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >
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