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From: Mark Dixon <mnd999@hotmail.com>
Subject: Re: Is UEFI required for ZFS?
Date: Fri, 12 Feb 2016 18:42:49 +0000 (UTC)
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Thomas Laus <lausts <at> acm.org> writes:

> 
> I have a new Asus H170-Plus-D3 motherboard that will be used for a DOM0 Xen 
> Server.  It uses an Intel i5-6300 processor and a Samsung 840 EVO SSD.  I 
> would like to use ZFS on this new installation.  The Xen Kernel does not have 
> UEFI support at this time, so I installed FreeBSD CURRENT r295345 in 'legacy 
> mode'.  It takes about 7 minutes to go from the first '|' character to 
> getting the 'beastie' menu.  I changed the BIOS to UEFI and did another 
> installation.  The boot process goes in an instant.  

Several others have the same problem. See here on the freebsd forums:

http://tinyurl.com/z9oldkc

(URL shortened cos I'm only allowed 80chars per line)

Mark