From owner-freebsd-hackers Fri Nov 28 05:00:12 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id FAA11733 for hackers-outgoing; Fri, 28 Nov 1997 05:00:12 -0800 (PST) (envelope-from owner-freebsd-hackers) Received: from haldjas.folklore.ee (Haldjas.folklore.ee [193.40.6.121]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id FAA11728 for ; Fri, 28 Nov 1997 05:00:08 -0800 (PST) (envelope-from narvi@Haldjas.folklore.ee) Received: from haldjas.folklore.ee (haldjas.folklore.ee [172.17.2.1] (may be forged)) by haldjas.folklore.ee (8.8.7/8.8.4) with SMTP id OAA05590; Fri, 28 Nov 1997 14:59:49 +0200 (EET) Date: Fri, 28 Nov 1997 14:59:49 +0200 (EET) From: Narvi To: Joerg Wunsch cc: hackers@FreeBSD.ORG, "Brian J. McGovern" Subject: Re: Union and Portal FSs In-Reply-To: <19971127085717.19775@uriah.heep.sax.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Thu, 27 Nov 1997, J Wunsch wrote: > As Brian J. McGovern wrote: > > > Just out of curiousity, how "decayed" are the Union and Portal > > filesystems,and, more importantly, is anyone working on them? > > Kazu did quite some work on unionfs, and i think it's basically usable > these days. There are still some odds in it (which i'm not sure of > whether they can be easily resolved), like an open attempt with write > intent will yield an EROFS if the lower layer is a read/only > filesystem. > > UFS union mounts ("mount -o union /dev/fd0 /somewhere") seem to have a > different set of problems. I've got this one basically to work, in an > attempt to mount a writable floppy over a read/only CD-ROM /etc, but > when i recently tried under -current with a lower-layer NFS, the > writes went through into the lower layer, ick. :( > > No idea on portals... At least some time ago portalfs worked well enough for tcp connections. Haven't tried filesystems. Sander There is no love, no good, no happiness and no future - all these are just illusions. > > -- > cheers, J"org > > joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE > Never trust an operating system you don't have sources for. ;-) >