onfiguration [2]. So I
>>>>>>> rebuit with RAID5 and re-installed 12.0-CURRENT
>>>>>>> (r333982). But failed to boot with:
>>>>>>>
>>>>>>> ZFS: i/o error - all block copies unavailable
>>>>>>> ZFS: can't re
>>
> >>>>> I've been reported ZFS boot disable problem [1], and found
> >>>>> that this issue occers form RAID configuration [2]. So I
> >>>>> rebuit with RAID5 and re-installed 12.0-CURRENT
> >>>>> (r333982). But failed to bo
tion [2]. So I
>>>>> rebuit with RAID5 and re-installed 12.0-CURRENT
>>>>> (r333982). But failed to boot with:
>>>>>
>>>>> ZFS: i/o error - all block copies unavailable
>>>>> ZFS: can't read MOS of pool zroot
>>>
But failed to boot with:
> >>>
> >>> ZFS: i/o error - all block copies unavailable
> >>> ZFS: can't read MOS of pool zroot
> >>> gptzfsboot: failed to mount default pool zroot
> >>>
> >>> FreeBSD/x86 boot
> >>> ZFS: I/O
ool zroot
>>> gptzfsboot: failed to mount default pool zroot
>>>
>>> FreeBSD/x86 boot
>>> ZFS: I/O error - blocks larger than 16777216 are not supported
>>> ZFS: can't find dataset u
>>> Default: zroot/<0x0>:
>>>
>>> In thi
RAID5 and re-installed 12.0-CURRENT
> > (r333982). But failed to boot with:
> >
> > ZFS: i/o error - all block copies unavailable
> > ZFS: can't read MOS of pool zroot
> > gptzfsboot: failed to mount default pool zroot
> >
> > FreeBSD/x86 boot
> >
ith RAID5 and re-installed 12.0-CURRENT
>> (r333982). But failed to boot with:
>>
>> ZFS: i/o error - all block copies unavailable
>> ZFS: can't read MOS of pool zroot
>> gptzfsboot: failed to mount default pool zroot
>>
>> FreeBSD/x86 boot
>> ZFS: I/O error
S: i/o error - all block copies unavailable
> ZFS: can't read MOS of pool zroot
> gptzfsboot: failed to mount default pool zroot
>
> FreeBSD/x86 boot
> ZFS: I/O error - blocks larger than 16777216 are not supported
> ZFS: can't find dataset u
> Default: zroot/<0x0>:
&
gptzfsboot: failed to mount default pool zroot
FreeBSD/x86 boot
ZFS: I/O error - blocks larger than 16777216 are not supported
ZFS: can't find dataset u
Default: zroot/<0x0>:
In this case, the reason is "blocks larger than 16777216 are
not supported" and I guess this means datasets that