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Date: Sun, 22 Dec 2013 13:56:40 -0700 (MST)
From: Warren Block <wblock@wonkity.com>
To: "Mike." <the.lists@mgm51.com>
Subject: re: [10.0RC2] partition labels during install
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On Sun, 22 Dec 2013, Mike. wrote:

> OK, I looked and did not see anything under /dev/ufs or
> /dev/gpt.

> I'll use glabel outside of the bsdinstall process to put labels
> on the partitions.  I've used that process on another box, and
> it works fine.

Both GPT and UFS labels do not take up extra metadata space that can be 
overwritten if the user is not careful about devices.  You did not say 
whether this was a GPT disk, but UFS labels are fine also.

In other words: don't use generic glabels unless there is no other 
choice.