Re: boot from raidz

Am 07.09.2009 um 11:13 schrieb Oliver Fakler:

>
> BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }
>
> On Mon 07/09/09 10:07 , Bernhard Schmidt <bschmidt_at_techwires.net>  
> 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 
> " target="_blank">http://lists.freebsd.org/pipermail/freebsd-fs/2008-December/005498.html



Seems that patch made it already into the tree (r192194).



>
>
> I tried it, but after a make obj && make depend the make failed with  
> different errors like undeclared and has no member named.
>
> I used patch raidzboot-14052009.diff started patching from /usr/src/ 
> 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,  
> 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.html 
  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=/tank
> ./install.sh
> You are about to extract the base distribution into /tank - are you  
> 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="YES"' > /tank/etc/rc.conf
> echo 'LOADER_ZFS_SUPPORT="YES"' > /tank/etc/src.conf
> echo 'zfs_load="YES"' > /tank/boot/loader.conf
> echo 'vfs.root.mountfrom="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=/mnt2/lib
> zfs set mountpoint=legacy tank
> zfs set mountpoint=/tmp tank/tmp
> zfs set mountpoint=/var tank/var
> zfs set mountpoint=/usr tank/usr
> zpool set bootfs=tank tank
>


Seems correct at first glance.


--
Bernhard