X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Wed, 7 Jan 2009 17:09:25 +0100 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: [1.7] Cygwin 1.7 misnames hardlinks Message-ID: <20090107160925.GE19133@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <4951B5EB.5050705@i12.com> <20090107142228.GA19133@calimero.vinschen.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Jan 7 09:38, Brian Ford wrote: > On Wed, 7 Jan 2009, Corinna Vinschen wrote: > > > The same happens with all hardlinks to files used by the system. The NT > > status code returned when trying to set the delete disposition flag is > > C0000121, STATUS_CANNOT_DELETE. None of the Windows native methods to > > delete these hardlinks works. I'm still puzzeled how to get rid of > > them. Does anybody knows how to do that? > > Just a WAG, but disable Windows File Protection? > > http://support.microsoft.com/kb/222193 No, I found the solution by getting the double-plus surprising result that removing these hardlinks works in Cygwin 1.5. For some reason only the OS hackers at Microsoft might grok, setting the delete dispostion flag for a file (*) doesn't work, but opening the file with the FILE_FLAG_DELETE_ON_CLOSE flag and then closing it again (**) works fine. Go figure! Unfortunately the DELETE_ON_CLOSE stuff is too dangerous in some circumstances so it's not a generic solution. I'm preparing a fix for 1.7. Corinna (*) Which is also what the Win32 function DeleteFile does. (**) Which is what Cygwin 1.5 and the native function ZwDeleteFile does. -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/