ZFS: i/o error all block copies unavailable

[Ronald Klop]

Is /boot/zfs/zpool.cache correct for the current setup?

Ronald.

On Sun, 14 Aug 2011 14:28:11 +0200, Ruslan Yakovlev <quazi at bk.ru> wrote:

> I think it is not bootcode problem. I not modify my bootcode when power  
> halted. It is some problems in ZFS.
> When I probe import ZFS pool (in 9.0-BETA1) it wrote that pool is busy.  
> Only zpool import -f work.
> After that I change mountpoint, list my files, replace mountpoint to /  
> and reboot. Now on boot it wrote many errors (many strings "ZFS: i/o  
> error..") and wrote file names.
> First it /boot/kernel/kernel
> when  I probe list files from bootcode, I can see only / and /boot, on  
> /boot/kernel it wrote "ZFS: i/o error.."
> But now copy of /boot/kernel work fine from flash
> I do
> # copy -r /boot /boot.new
> # move /boot /boot.broken
> # move /boot.new /boot
> Now kernel boot, but stopped when probe mount ZFS storage as root. If I  
> select boot string from menu and do #load /boot/kernel/zfs.ko it wrote  
> "ZFS: i/o error.."
> pmbr and gptzfsboot from 9.0-BETA1 don't change anything. Problem  
> staying.
> And I can't boot from kernel.old (it wrote "ZFS: i/o error.." too)
>
> I think if I copy all my files to other storage and rebuild ZFS pool,  
> problem leave, but now I don't have any other storage for all my data.
>
> On 14.08.2011 14:10, rubyneko neko wrote:
>> 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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>
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