Date: Tue, 8 Sep 2009 14:45:21 +0200 From: Oliver Fakler <oliver@namp.de> To: <freebsd-current@freebsd.org> Subject: Re: boot from raidz Message-ID: <24905.1252413921@namp.de>
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On Mon 07/09/09 20:22 , Paul Wootton wrote:Oliver Fakler wrote:
> On Mon 07/09/09 13:40 , Bernhard Schmidt wrote:
> Am 07.09.2009 um 11:13 schrieb Oliver Fakler:
> >
> > BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px;
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> >
> > On Mon 07/09/09 10:07 , Bernhard Schmidt =20
> > wrote:
> >
> >
> > Am 06.09.2009 um 21:45 schrieb Oliver Fakler:
> >
> > >
> > >
> > > Hi all,
> > >
> > > i installed a 8.0 beta 3 amd64 based testsystem.
> > >
> > > i tried with a root on a raidz, but i have a problem after
the
> first
> > > reboot, there is a error message:
> > >
> > > can't load kernel
> > > I found something that boot root from raidz is not supported,
> but
> > > maybe there is a solution??
> > > Hope some can help me
> >
> >
> > There are patches from Doug Rabson which add support for
booting
> from
> > raidz/raidz2.
> >
> >
>
http://lists.freebsd.org/pipermail/freebsd-fs/2008-December/005498.html
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> > "
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> Seems that patch made it already into the tree (r192194).
> >
> >
> > I tried it, but after a make obj && make depend the make failed
> with =20
> > different errors like undeclared and has no member named.
> >
> > I used patch raidzboot-14052009.diff started patching from
> /usr/src/=20
> > sys/ , i'm not sure if this was the right way.
> >
> > I'm also not sure if the way of installation was the right one,
=20
> > here's the way i go:
> >
> >
> > gpart create -s GPT da0
> > gpart add -b 34 -s 128 -t freebsd-boot da0
> > gpart add -b 162 -s 5242880 -t freebsd-swap da0
> > gpart add -b 5243042 -s 11534141 -t freebsd-zfs da0
> > gpart bootcode -b /mnt2/boot/pmbr -p /mnt2/boot/gptzfsboot -i 1
> da0
> > gpart bootcode -b /mnt2/boot/pmbr -p /mnt2/boot/gptzfsboot -i 1
> da1
> > gpart bootcode -b /mnt2/boot/pmbr -p /mnt2/boot/gptzfsboot -i 1
> da2
> >
> Can you try zfsboot instead of gptzfsboot?
>
>
http://unix.derkeiler.com/Mailing-Lists/FreeBSD/stable/2009-05/msg00689.htm=
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>
> at the end of the mail.
> >
> >
> > kldload /mnt2/boot/kernel/opensolaris.ko
> > kldload /mnt2/boot/kernel/zfs.ko
> >
> > zpool create tank raidz da0p3 da1p1 d2p1
> >
> > zfs create tank/tmp
> > zfs create tank/usr
> > zfs create tank/var
> >
> > cd /dist/8.0-BETA3/base
> > export DESTDIR=3D/tank
> > ./install.sh
> > You are about to extract the base distribution into /tank - are
> you =20
> > SURE
> > you want to do this over your installed system (y/n)? y
> > cd ../kernels
> > ./install.sh generic
> > cd /tank/boot
> > cp -Rp GENERIC/* kernel/
> >
> > cd /dist/8.0-BETA3/src
> > ./install.sh all
> > Extracting sources into /usr/src...
> > Extracting source component: base
> > Extracting source component: bin
> > Extracting source component: cddl
> > Extracting source component: contrib
> > Extracting source component: crypto
> > Extracting source component: etc
> > Extracting source component: games
> > Extracting source component: gnu
> > Extracting source component: include
> > Extracting source component: krb5
> > Extracting source component: lib
> > Extracting source component: libexec
> > Extracting source component: release
> > Extracting source component: rescue
> > Extracting source component: sbin
> > Extracting source component: secure
> > Extracting source component: share
> > Extracting source component: sys
> > Extracting source component: tools
> > Extracting source component: ubin
> > Extracting source component: usbin
> > Done extracting sources.
> > Done extracting sources.
> > cd ../manpages
> > ./install.sh
> >
> > echo 'zfs_enable=3D"YES"' > /tank/etc/rc.conf
> > echo 'LOADER_ZFS_SUPPORT=3D"YES"' > /tank/etc/src.conf
> > echo 'zfs_load=3D"YES"' > /tank/boot/loader.conf
> > echo 'vfs.root.mountfrom=3D"zfs:tank"' >> /tank/boot/loader.conf
> > echo ´/dev/da0p2 none swap sw 0 0´>>
/tank/etc/fstab
> >
> > mkdir /boot/zfs
> > zpool export tank && zpool import tank
> > cp /boot/zfs/zpool.cache /tank/boot/zfs/
> >
> > chroot /tank
> > mount -t devfs devfs /dev
> > unset DESTDIR
> > cd /usr/src/sys/boot/
> > make obj
> > make depend
> > make
> > cd i386/loader
> > make install
> > umount /dev
> > touch /etc/fstab
> > exit
> >
> > export LD_LIBRARY_PATH=3D/mnt2/lib
> > zfs set mountpoint=3Dlegacy tank
> > zfs set mountpoint=3D/tmp tank/tmp
> > zfs set mountpoint=3D/var tank/var
> > zfs set mountpoint=3D/usr tank/usr
> > zpool set bootfs=3Dtank tank
> >
> Seems correct at first glance.
> --
> Bernhard
> testet with zfsboot instead of gptzfsboot but it was not
successfull
> :-(
>
> Links:
> ------
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I have a fully running GPT ZFS RaidZ setup using what was at the
time 8-HEAD
I cant remember the exact steps I took, but one thing I have
different=20
is I have a root filesystem within my zpool
[ /usr/home/paul]$ gpart show
=3D> 34 976773101 ada1 GPT (466G)
34 256 1 freebsd-boot (128K)
290 8388608 2 freebsd-swap (4.0G)
8388898 147912557 3 freebsd-zfs (71G)
156301455 820471680 - free - (391G)
=3D> 34 488394988 ada2 GPT (233G)
34 256 1 freebsd-boot (128K)
290 8388608 2 freebsd-swap (4.0G)
8388898 147912557 3 freebsd-zfs (71G)
156301455 332093567 - free - (158G)
=3D> 34 156301421 ada3 GPT (75G)
34 256 1 freebsd-boot (128K)
290 8388608 2 freebsd-swap (4.0G)
8388898 147912557 3 freebsd-zfs (71G)
[ /usr/home/paul]$ zpool status
pool: zboot
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
zboot ONLINE 0 0 0
ada1p3 ONLINE 0 0 0
ada2p3 ONLINE 0 0 0
ada3p3 ONLINE 0 0 0
errors: No known data errors
[ /usr/home/paul]$ zfs list
NAME USED AVAIL REFER MOUNTPOINT
zboot 33.5G 175G 18K none
zboot/root 12.4G 175G 12.2G none
zboot/tmp 82.9M 175G 82.6M none
zboot/usr 20.8G 175G 16.5G none
zboot/var 216M 175G 123M none
Im also using fstabs to mount my ZFS filesystems
[ /usr/home/paul]$ more /etc/fstab
# Device Mountpoint FStype Options Dump
=20
Pass#
zboot/root / zfs rw 0 =20
0
zboot/usr /usr zfs rw 0 =20
0
zboot/var /var zfs rw 0 =20
0
zboot/tmp /tmp zfs rw,noatime 0 =20
0
proc /proc procfs rw 0 =20
0
I remember speak to someone a while back, and I *think* we came to
the=20
conclusion that using the zpool as your root will not work correctly
and=20
you should really create a root filesystem inside the zpool
Lets me know how this works out for you
Paul
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your pool is just a stripe, no raidz
i testet it with striping, and it was successfull, but i need a
raidz
there are some new errors on Beta4
can'tfind root filesystem
maybe you're right with your idea of an extra root folder, but i
think if he can't find root filesystem, he also can't read fstab.
maybe more ideas? :-)
cheers=20
Oliver
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