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Date: Fri, 28 Nov 2008 15:02:02 +0100 (CET)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: admin <admin@azuni.net>
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Cc: freebsd-questions@freebsd.org
Subject: Re: [PC] booting RAID before IDE
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> them using dump to another IDE disk. The problem is that when both the RAID 
> array and the IDE disk are plugged in PC, it's unable to boot off the array, 
> trying the empty IDE disk instead. Is there a way to boot from the array, and 
> yet be able to use the new disk?

simply read BIOS manual :)

if it can't, boot from CD/DVD stop bootprocess pressing 6 at bootmenu then

set vfs.root.mountfrom="ufs:your-array's-partition"
boot