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Date:      Tue, 26 Apr 2011 02:28:22 -0500
From:      Brooks Davis <brooks@FreeBSD.org>
To:        Doug Barton <dougb@FreeBSD.org>
Cc:        freebsd-fs@FreeBSD.org
Subject:   Re: Do the IDs under /dev/ufsid change when the partition is newfs'ed?
Message-ID:  <20110426072822.GB37806@lor.one-eyed-alien.net>
In-Reply-To: <4DB5D1BA.5030100@FreeBSD.org>
References:  <4DB5D1BA.5030100@FreeBSD.org>

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On Mon, Apr 25, 2011 at 12:55:38PM -0700, Doug Barton wrote:
> INRE the current discussion about labeling and how to refer to devices=20
> in fstab, I'm curious if the IDs in /dev/ufsid change when the partition=
=20
> is newfs'ed.

A simple experiment confirms the answer is yes:

[2:33pm] brooks@stormwind (~): ls -la /dev/ufsid/
total 1
dr-xr-xr-x  2 root  wheel          512 Apr  1 21:37 .
dr-xr-xr-x  7 root  wheel          512 Apr  1 21:37 ..
crw-r-----  1 root  operator    0, 108 Apr 26 14:33 4db6d7a0726eab90
crw-r-----  1 root  operator    0, 123 Apr 26 14:33 4db6d7a0726eab90s1
[2:33pm] brooks@stormwind (~): sudo newfs /dev/ad7 > /dev/null
[2:33pm] brooks@stormwind (~): ls -la /dev/ufsid/
total 1
dr-xr-xr-x  2 root  wheel          512 Apr  1 21:37 .
dr-xr-xr-x  7 root  wheel          512 Apr  1 21:37 ..
crw-r-----  1 root  operator    0, 108 Apr 26 14:33 4db6d7c2389adac2
crw-r-----  1 root  operator    0, 123 Apr 26 14:33 4db6d7c2389adac2s1
[2:33pm] brooks@stormwind (~):=20


-- Brooks

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