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Date: Mon, 20 Dec 2004 14:58:46 -0600
From: Stephen Montgomery-Smith <stephen@math.missouri.edu>
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To: Kris Kennaway <kris@obsecurity.org>
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cc: ports@freebsd.org
Subject: Re: sh in linux_base cannot write to /dev/null
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Kris Kennaway wrote:
> On Mon, Dec 20, 2004 at 12:18:30PM -0600, Stephen Montgomery-Smith wrote:
> 
>>I installed linux_base from the ports.  If I then run
>>/compat/linux/bin/sh
>>and then type
>>cat > /dev/null
>>I get an error message:
>>sh: /dev/null: Permission denied
>>
>>Incidently this error doesn't happen with linux_base-8.
>>
>>I am running FreeBSD-5.3-STABLE and ls -l /dev/null gives
>>crw-rw-rw-  1 root  wheel    2,   2 Dec 20 12:11 /dev/null
> 
> 
> It's actually /compat/linux/dev/null that's being written to.  What's
> there on your machine?
> 
> Kris

There is nothing there.  Presumably some kind of makedev instruction 
would fix it, but I don't know what that instruction would be.

(With linux_base-8 there isn't even a /compat/linux/dev - was this a 
deliberate change?)