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Date:      Wed, 07 Apr 2010 15:10:08 +0800
From:      Aiza <aiza21@comclark.com>
To:        Dan Naumov <dan.naumov@gmail.com>
Cc:        Mars G Miro <spry@anarchy.in.the.ph>, freebsd-jail@freebsd.org, Glen Barber <glen.j.barber@gmail.com>, freebsd-questions@freebsd.org
Subject:   Re: bizarre mount_nullfs issue with jails / ezjail
Message-ID:  <4BBC2FD0.3040204@comclark.com>
In-Reply-To: <t2tcf9b1ee01004062328hb3b221b5oaf90579419c3a8e9@mail.gmail.com>
References:  <k2xcf9b1ee01004061429ub4986488ya54af1a525aa209c@mail.gmail.com>	<20100406213711.GA38637@orion.hsd1.pa.comcast.net>	<p2wcf9b1ee01004061443j2009774ewe8221d4668cff9ba@mail.gmail.com>	<z2of12f408a1004062049h92c68feaub51a48cb52289d31@mail.gmail.com> <t2tcf9b1ee01004062328hb3b221b5oaf90579419c3a8e9@mail.gmail.com>

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Dan Naumov wrote:
>>> An additional question: how come "sade" and "sysinstall" which are run
>>> inside the jail can see (and I can only assume they can also operate
>>> on and damage) the real underlying disks of the host?
>>>
>> Disks (as well as others you have in your host's /dev) aren't visible
>> inside jails.
> 
> Well, somehow they are on my system.
> 
> I guess I should've also clarified that the jail was installed using
> ezjail and not completely manually
> 
>>From /usr/local/etc/ezjail/semipublic
> 
> export jail_semipublic_devfs_enable="YES"
> export jail_semipublic_devfs_ruleset="devfsrules_jail"
> 
> - Sincerely,
> Dan Naumov
> 
> 
You are not in a jail but as the host. Use ezjail-admin console jailname 
and things will look alot different. What you are playing with are 
ezjails system control files.



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