GPT boot with ZFS RAIDZ "ZFS: i/o error - all block copies unavailable"

[Radek Valášek]

alteriks at gmail.com napsal(a):
> On Wednesday 28 October 2009 21:43:07 Robert Noland wrote:
>   
>> If you hit a key very early then you will land in boot2, where you can
>> type "status" and it will list the zfs pool.
>>     
>
> I haven't tried it yet. Would it allow me to mount root?
> I tried to install from fixit once again, but I've made a script to eliminate 
> all typo's I could made. I amde script using most of:
> http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/RAIDZ1
>
> After rebooting it could even load bootloader:
>   
>> ZFS: i/o error - all block copies unavailable
>> ZFS: can't read MOS
>> ZFS: unexpected object set type lld
>> ZFS: unexpected object set type lld
>>     
>
> So in my opinion increasing number of sectors for first slice containing 
> bootcode, helped at least in my case.
>
>   
OK, so what's your current size of the first slice ? Could you paste 
here the result of 'gpart show' on your instalation?
> I'll try to install FreeBSD in tuesday with new iso, as I suspect that 
> something went wrong during burning dvd, also I didn't check md5. So maybe 
> those problems are only related to defuncted dvd, I hope so.
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