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List:       freebsd-fs
Subject:    Re: Installing FreeBSD 10.2 Root on ZFS using VTOC8 (sparc)
From:       Norman Khine <norman () khine ! net>
Date:       2016-01-29 9:51:33
Message-ID: CAKgQ7UJDbnLpsbKtyNYeMsr9cYTUV6xFDOjVRxEKKD1Aska6_Q () mail ! gmail ! com
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hello subash, not sure but if you google your error, you get

https://forums.freebsd.org/threads/zfs-i-o-error-all-block-copies-unavailable.30209/
and
http://serverfault.com/questions/616991/freebsd-10-wont-boot-to-zfs-root-after-power-failure


also, direct your questions to , which i have done for you

freebsd-fs@freebsd.org
as you may get better response

On 28 January 2016 at 08:34, subash <subash.khati@gmail.com> wrote:

> Hello Sir,
> 
> I am trying to install FreeBSD Sparc64 on my machine, I followed the
> tutorials to Install FreeBSD Root on ZFS( tutorial link )
> <https://wiki.freebsd.org/RootOnZFS/VTOC8ZFSBoot/9.x-RELEASE>. Only the
> changes I made is that instead of using mirror I tried configuring raidz
> with four internal disks and added bootloader in all the disks (da0 da1 da2
> da3). Everything was fine while installing but booting after installation
> shows the error below:-
> 
> ZFS: i/o error - all block copies unavailable
> ZFS: can't read MOS object directory
> ZFS: can't find root filesystem
> 
> FreeBSD/sparc64 ZFS enabled bootstrap loader, Revision 1.0
> (root@releng1.nyi.freebsd.org, Wed Nov 12 03:13:59 UTC 2014)
> 
> bootpath=""
> 
> can't load 'kernel'
> 
> I created zpool like this:-
> zpool create -f -o altroot=/mnt -O canmount=off zroot raidz da0a da1a da2a
> da3a
> 
> here is my bootloader installation:-
> 
> # zpool export zroot # gpart bootcode -p /boot/zfsboot da0 # gpart bootcode -p \
> /boot/zfsboot da1 # gpart bootcode -p /boot/zfsboot da2
> # gpart bootcode -p /boot/zfsboot da3
> # sysctl kern.geom.debugflags=0x10 kern.geom.debugflags: 0 -> 16 # dd \
> if=/boot/zfsloader of=/dev/da0a bs=512 oseek=1024 conv=notrunc,sync # dd \
> if=/boot/zfsloader of=/dev/da1a bs=512 oseek=1024 conv=notrunc,sync # dd \
> if=/boot/zfsloader of=/dev/da2a bs=512 oseek=1024 conv=notrunc,sync # dd \
> if=/boot/zfsloader of=/dev/da3a bs=512 oseek=1024 conv=notrunc,sync # zpool import \
> -o altroot=/mnt zroot 
> Any ideas?
> 



-- 
%>>> "".join( [ {'*':'@','^':'.'}.get(c,None) or chr(97+(ord(c)-83)%26) for
c in ",adym,*)&uzq^zqf" ] )
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