Problem with ZFS version 15

Andrey V. Elsukov bu7cher at
Tue Jul 20 10:48:15 UTC 2010

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.

>> 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.

WBR, Andrey V. Elsukov

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