From owner-freebsd-questions@FreeBSD.ORG Thu Sep 25 23:43:43 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 98B9B1065693 for ; Thu, 25 Sep 2008 23:43:43 +0000 (UTC) (envelope-from me@davidpolak.com) Received: from smtpauth05.prod.mesa1.secureserver.net (smtpauth05.prod.mesa1.secureserver.net [64.202.165.99]) by mx1.freebsd.org (Postfix) with SMTP id 9DF158FC13 for ; Thu, 25 Sep 2008 23:43:42 +0000 (UTC) (envelope-from me@davidpolak.com) Received: (qmail 8552 invoked from network); 25 Sep 2008 23:43:41 -0000 Received: from unknown (97.119.58.64) by smtpauth05.prod.mesa1.secureserver.net (64.202.165.99) with ESMTP; 25 Sep 2008 23:43:41 -0000 From: "David Polak" To: "'Nejc S\(koberne'" References: <005401c91f35$3cf09fa0$b6d1dee0$@com> <48DBF589.3030906@skoberne.net> <006b01c91f5a$83c8c360$8b5a4a20$@com> <48DC1AE4.9000108@skoberne.net> In-Reply-To: <48DC1AE4.9000108@skoberne.net> Date: Thu, 25 Sep 2008 18:42:45 -0500 Message-ID: <006c01c91f68$69ebf120$3dc3d360$@com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AckfZFT/Ly/Xm2DcT4+vY5mkFv+QDAAA+j0A Content-Language: en-us Cc: freebsd-questions@freebsd.org Subject: RE: mount_unionfs for jails X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Sep 2008 23:43:43 -0000 > -----Original Message----- > From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd- > questions@freebsd.org] On Behalf Of Nejc S(koberne > Sent: Thursday, September 25, 2008 6:13 PM > To: David Polak > Cc: freebsd-questions@freebsd.org > Subject: Re: mount_unionfs for jails > > Hello, > > > Well, it turns out that my problem was due to a typo in my host > systems > > rc.conf. > > Thought so. > > > Do you know if there is a way to "reset" the unionfs? I did notice > this: > > It is called "whiteout". When you delete the file which is on lower > layer > in unionfs, you actually create a file of type "whiteout" on the upper > layer, > which tells you that the file is not there. So it is a mark for a > deleted file. > To "reset" it, you just need to delete the whiteout. You can do this > via > "rm -W". Actually whiteouts seem to be a nice solution but sometimes > you'll > run into interesting problems. When you try to upgrade jails, for > example. > Also, the problem is, because very few programs "support" whiteouts, > for > example "find" utility doesn't know about them, so you have to > reimplement > it (we made a shell script). > > We have created a lot of scripts which can do a lot of stuff with jails > and > unionfs on our server. If you are interested, let me know. > > HTH, > Nejc It would be much appreciated, thank you.