Date: Fri, 13 Dec 2002 13:33:38 -0400 (AST) From: "Marc G. Fournier" <scrappy@hub.org> To: "Marcus L. Reid" <marcus@blazingdot.com> Cc: freebsd-questions@freeBSD.org Subject: Re: layered file systems ... Message-ID: <20021213133130.S13175-100000@hub.org> In-Reply-To: <20021213162521.GA96011@blazingdot.com> References: <20021213095811.A13175-100000@hub.org> <20021213151455.GD92171@blazingdot.com> <20021213113108.B13175-100000@hub.org> <20021213162521.GA96011@blazingdot.com>
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On Fri, 13 Dec 2002, Marcus L. Reid wrote: > On Fri, Dec 13, 2002 at 11:32:28AM -0400, Marc G. Fournier wrote: > > On Fri, 13 Dec 2002, Marcus Reid wrote: > > > Sounds like you're looking for something like unionfs. Unfortunately, > > > it doesn't work (even in -CURRENT) and if it did I don't know if it > > > could be made to work across jails. But the manpage for mount_unionfs > > > makes for a good read anyway.. > > > > Actually, I just spent some time playing with it, and figured out what I > > was doing wrong .. haven't tested it full blown yet, but it looks like it > > works fine ... > > > > What is known to be wrong with it? The man page is dated '94, so the 'IT > > DOESN"T WORK' is a weeeeeee bit old ... > > Hmm, I didn't notice the date on the manpage, just the loud warnings > of impending doom should one attempt to use it. Is it safe to use under > some circumstances? How does one make it break? That's kinda what I'm wondering ... is it just that nobody has updated the man page since '94 ... from looking at the sources, ther have been mods to it since then: total 103 drwxr-xr-x 2 root wheel 512 Dec 30 2001 . -rw-r--r-- 1 root wheel 33588 Dec 30 2001 union_subr.c -rw-r--r-- 1 root wheel 12980 Oct 28 2001 union_vfsops.c drwxr-xr-x 12 root wheel 512 Sep 28 2001 .. -rw-r--r-- 1 root wheel 5916 Dec 29 1999 union.h -rw-r--r-- 1 root wheel 49818 Dec 15 1999 union_vnops.c and it looks like 5.0 has some changes to it: > ls -lta total 106 drwxr-xr-x 2 root wheel 512 Nov 19 10:00 . -rw-r--r-- 1 root wheel 5419 Nov 19 10:00 union.h -rw-r--r-- 1 root wheel 33343 Nov 19 10:00 union_subr.c -rw-r--r-- 1 root wheel 13175 Nov 19 10:00 union_vfsops.c -rw-r--r-- 1 root wheel 47534 Nov 19 10:00 union_vnops.c drwxr-xr-x 19 root wheel 512 Jul 17 09:12 .. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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