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Date:      Sat, 17 Dec 2011 04:41:09 -0600
From:      CyberLeo Kitsana <cyberleo@cyberleo.net>
To:        Devin Teske <devin.teske@fisglobal.com>
Cc:        freebsd-questions@freebsd.org, 'Da Rock' <freebsd-questions@herveybayaustralia.com.au>
Subject:   Re: 9.0 install and journaling
Message-ID:  <4EEC71C5.7090701@cyberleo.net>
In-Reply-To: <006a01ccb9b7$df4f1f40$9ded5dc0$@fisglobal.com>
References:  <4EE32BB6.3020105@herveybayaustralia.com.au>	<alpine.BSF.2.00.1112100755520.11994@wonkity.com>	<4EE38454.3020307@otenet.gr>	<4EE3D1F0.60500@herveybayaustralia.com.au>	<4989a3ebb7810ed26951cbbd23b7645c.squirrel@webmail.dabus.com> <4EE6943E.40400@herveybayaustralia.com.au> <006a01ccb9b7$df4f1f40$9ded5dc0$@fisglobal.com>

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On 12/13/2011 10:54 AM, Devin Teske wrote:
> We're seeing in 8.1-RELEASE that "nodev" is an invalid option for NFS mounts
> that causes your system to boot into single-user mode. Is this still the case in
> 9.0-RC2/3 or has the option been re-added? "nodev" was a valid option in
> 4.11-RELEASE, not sure why it was removed (and/or made invalid).

Since the advent of devfs, device nodes no longer function anywhere
other than a devfs-backed filesystem; so 'nodev' is, in a sense, the
default. Try it yourself:

----8<----
amani# dd if=/dev/zero count=1 | hd
1+0 records in
1+0 records out
512 bytes transferred in 0.000046 secs (11126858 bytes/sec)
00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
|................|
*
00000200
amani# mknod zero c 0 26
amani# dd if=./zero count=1 | hd
dd: ./zero: Inappropriate ioctl for device
amani#
----8<----

-- 
Fuzzy love,
-CyberLeo
Technical Administrator
CyberLeo.Net Webhosting
http://www.CyberLeo.Net
<CyberLeo@CyberLeo.Net>

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