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Date: Mon, 21 Dec 2009 09:47:03 -0600
From: "James R. Van Artsdalen" <james-freebsd-current@jrv.org>
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To: Ollivier Robert <roberto@keltia.freenix.fr>
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Cc: freebsd-current@freebsd.org
Subject: Re: Some notes on RootOnZFS article in wiki
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Ollivier Robert wrote:
> On modern machines, system will boot from the GPT "freebsd-boot" partition w/o having it active

A correctly-written PC BIOS does not even look at (or for) a partition
table of any sort when booting.  That's been the case for a
quarter-century.   A system that does not boot without the active bit
set is buggy, not new vs. old.

In a PC architecture the boot code in the MBR is the first thing that
care about the partition table and active bits.