ZFS: i/o error all block copies unavailable

[rubyneko neko]

I have some problem too.
Currently I'm working from kernel.old.

gpart bootcode -p /boot/gptzfsboot -i 1 ad4
for my not work.

any idea?

On Sun, 2011-08-14 at 13:16 +0300, Ruslan Yakovlev wrote:
> Hi all
> After power down on FreeBSD 8.2-STABLE #6 (now updated to #7, but
> problem standing) I can't boot from ZFS v28.
> gptzfsboot wrote
>    boot: ZFS: i/o error all block copies unavailable
> instead
>    boot: qroot:/boot/kernel/kernel
> I download FreeBSD 9.0-BETA1 image and boot from it. I can mount my ZFS
> storage. I copy /boot from ZFS storage to flash and now kernel booted
> from flash fine, after that ZFS storage mounted as / and all work. zpool
> scrub don't detect any problems. zpool status wrote "No known data
errors".
> But it too slowly and I want normally boot from ZFS storage without
> loading kernel from flash. How can I fix "ZFS: i/o error all block
> copies unavailable" ?
>
> Now I have
> FreeBSD QUAZIS.SNNLAN.local 8.2-STABLE FreeBSD 8.2-STABLE #7: Fri Aug 12
> 23:27:33 EEST 2011 root at QUAZIS.SNNLAN.local:/usr/obj/usr/src/sys/main8
i386
>
> => 34 976770988 ad4 GPT (465G)
>
> 34 256 1 freebsd-boot (128k)
>
> 290 16777216 2 freebsd-swap (8.0G)
>
> 16777506 959993516 3 freebsd-zfs (457G)
>
>
>
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