From: Wayne.Brown@altec.com
To: Alexander Viro <viro@math.psu.edu>
cc: linux-kernel@vger.kernel.org
Message-ID: <86256A11.00590FF8.00@smtpnotes.altec.com>
Date: Fri, 16 Mar 2001 10:12:42 -0600
Subject: Re: How to mount /proc/sys/fs/binfmt_misc ?
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Sender: linux-kernel-owner@vger.kernel.org


Thanks for the quick response.  I took your suggestion (a) and created
/etc/binfmt_misc, and set up a test in my rc.local to mount it and register my
usual entries there if /proc/sys/fs/binfmt_misc doesn't exist.  So now it works
with both 2.4.3-pre4 and 2.4.2-ac20.

Wayne


Alexander Viro <viro@math.psu.edu> on 03/16/2001 09:37:49 AM

To:   Wayne Brown/Corporate/Altec@Altec
cc:   linux-kernel@vger.kernel.org

Subject:  Re: How to mount /proc/sys/fs/binfmt_misc ?


On Fri, 16 Mar 2001 Wayne.Brown@altec.com wrote:

>   The release notes specify this:
>
>      mount -t binfmt_misc none /proc/sys/fs/binfmt_misc
>
> but this doesn't work because
>
>      mount: mount point /proc/sys/fs/binfmt_misc does not exist

Grr... OK, I've been an overoptimistic idiot and missed that ugliness.

Solutions:
     a) mount it on some real place. And write there to register
entries instead of the bogus /proc/sys/fs/binfmt_misc
     b) add a couple of proc_mkdir() into fs/proc/root.c
That is, add
     proc_mkdir("sys/fs", 0):
     proc_mkdir("sys/fs/binfmt_misc", 0);
after the line that says
     proc_mkdir("sys", 0);

I would strongly recommend (a). In the long run we'll need to go that
way.


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