Problem with ZFS version 15

Michael Gusek michael.gusek at
Thu Jul 22 13:15:11 UTC 2010

After reinitialized my gpt scheme, i can successfully import my zpool.
After this there was a little bit trouble with my zpool.cache and
booting from my pool, but now it works.

Thank you to all for your help,


Am 20.07.2010 13:30, schrieb Michael Gusek:
> -----Urspr?ngliche Nachricht-----
> Von: "Andrey V. Elsukov" <bu7cher at>
> Gesendet: 20.07.2010 12:47:49
> An: Michael Gusek <michael.gusek at>
> Betreff: Re: Problem with ZFS version 15
>> On 20.07.2010 13:51, Michael Gusek wrote:
>>>>>> and apply a new bootloader: gpart bootcode -b /boot/pmbr -p
>>>>>> /boot/gptzfsboot -i 1 ad0|ad1. After this, i've lost my gpt
>>>>>> scheme ! gpart show ad0 says "gpart: No such geom: ad0". How
>>>>>> can i recover my gpt on ad0 and ad1 ? I'm running a zfs mirror
>>>>>> on ad0 and ad1.
>> It is very strange why this command broke your GPT.
>> Actually incorrect PMBR can prevent probes for GEOM_PART_GPT.
> Yes, this is very strange.
>>>> I don't have such a backup, only the whole disk for now. Everything
>>>> else what can i do ? What if i initialize the gpt header: "gpart
>>>> create -s GPT ad0" ? Do i lost my data ?
>> GPT headers and tables will be initialized. After that you should
>> add all partitions with exactly same offsets and sizes. In this case
>> your data will not be touched.
> Ok, i will try it. I did a backup of the first 16GB of my disk, because i don't know the exact size of my swap partition, but this is my part.
> Thank you,
> Michael
>> -- 
>> WBR, Andrey V. Elsukov
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