Re: FreeBSD 5/6/7 kernel emulator for NetBSD 2.x

From: Rui Paulo (rpaulo_at_fnop.net)
Date: 10/29/05

  • Next message: Wilko Bulte: "Re: Very slow writing to SATA disk" 
    Date: Sat, 29 Oct 2005 11:59:03 +0100
To: "M. Warner Losh" <imp@bsdimp.com>

    On 2005.10.29 00:01:42 -0600, M. Warner Losh wrote:
    | In message: <20051026181403.GF1702@neuron.fnop.net>
    | Rui Paulo <rpaulo@fnop.net> writes:
    | : On 2005.10.26 10:22:52 -0700, Bill Studenmund wrote:
    | : | On Mon, Oct 24, 2005 at 10:35:47PM +0200, Hans Petter Selasky wrote:
    | : | >
    | : | > Main features:
    | : | >
    | : | > - Implements FreeBSD's devfs on NetBSD.
    | : |
    | : | In the past, we (NetBSD folks) have talked about a devfs. One issue that
    | : | has come up (I'll be honest, I've raised it a lot) is a desire to retain
    | : | permission changes across boots, and to tie devices (when possible) to a
    | : | device-specific attribute rather than a probe order.
    | : |
    | : | Does FreeBSD's devfs support locators and persistent information? Are
    | : | there plans to support something like that, if not?
    | :
    | : I remember Linux's devfs having a configure file for that particular
    | : objective. The user would set the permission flags in (I can't recall
    | : if this is the real name) /etc/devfsd.conf and let devfsd do the job.
    | :
    | : You could also use another directory for permissions, like /dev-state,
    | : but personally, I don't like this method.
    | :
    | : http://www.atnf.csiro.au/people/rgooch/linux/docs/devfs.html#persistence
    |
    | FreeBSD also has a file that can be used to control the permissions
    | and ownerships at runtime. The persistance can be there, but isn't
    | there by default like the old nodes in /dev.

    The other problem I see here is how devfs works in single user mode
    where devfsd is not started and no permissions are set. How does
    FreeBSD solve this problem?

                    -- Rui Paulo

  • Next message: Wilko Bulte: "Re: Very slow writing to SATA disk"

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