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Date: Wed, 25 Nov 2009 12:32:18 -0500
From: Steve Polyack <korvus@comcast.net>
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To: Ed Jobs <oloringr@gmail.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: ZFS pools gone?
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Ed Jobs wrote:
> On Wednesday 25 November 2009 18:14, cali clarke wrote:
>   
>> I just did a clean install of 8.0-RELEASE.
>>
>> I am _CERTAIN_ that the drives with ZFS on them were not touched by
>> the installer.
>>
>> Having booted the system (with zfs enabled in rc.conf):
>>
>>     
> did you try
> zpool import
> ?
>
>   
This is true, a 'zpool import' will likely be necessary.  I believe 
'zpool import' by itself will just list any pools which ZFS finds by 
searching disks in /dev.  You will need to 'zpool import <poolname>' 
afterwards to actually import the storage pool.

As you've said that it's a clean install, it may warn you that the pool 
is associated with another system (I saw this when migrating from 
9-Current back to 8.0).  You can simply pass -f to zpool import to 
safely force the operation.