Date: Sun, 2 Oct 2005 02:20:12 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Jim Keller <freebsd@contexthosting.net> Cc: freebsd-current@freebsd.org Subject: Re: mount --bind equivalent? mount_null broken or not? Message-ID: <20051002062012.GA12386@xor.obsecurity.org> In-Reply-To: <433F5AD7.9080705@contexthosting.net> References: <433F5AD7.9080705@contexthosting.net>
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[-- Attachment #1 --] On Sat, Oct 01, 2005 at 11:58:15PM -0400, Jim Keller wrote: > I've been using mount_null for quite some time to mount filesystems > beneath chroot jails, and have had no problems. However, the man page > for mount_null has had a warning (since 1995, apparently) that "IT > DOESN'T WORK", and I know OpenBSD has removed nullfs support as of > version 3.7 (per > http://archives.neohapsis.com/archives/openbsd/2005-09/0198.html). The > bug listed in that thread doesn't appear to apply to FreeBSD, as I was > able to successfully null mount /dev and list its contents. So my > questions are: > > 1. is nullfs actively supported on FreeBSD? If so, are there plans to > continue supporting it? Yes and yes. In fact I don't know of any remaining nullfs bugs on FreeBSD 5 and above (although I only stress it on 6 and above), so the warning should just be removed. Kris [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDP3wcWry0BWjoQKURAmIvAKC+WMIZ7hz3r0RDpNGks/9Po29K0QCghhUt AfD3vlw1Fvzw+8Ytlgn4skQ= =mQib -----END PGP SIGNATURE-----
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