From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frank van Maarseveen Subject: Re: Trouble accessing NFS mountpoint as user Date: Thu, 4 Jan 2007 22:00:41 +0100 Message-ID: <20070104210041.GA15676@janus> References: <459CB96A.1060806@amplex.dk> <1167901767.6046.17.camel@lade.trondhjem.org> <459CD54E.9050107@amplex.dk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: nfs@lists.sourceforge.net Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1H2Zhh-0003xN-Ei for nfs@lists.sourceforge.net; Thu, 04 Jan 2007 13:00:49 -0800 Received: from frankvm.xs4all.nl ([80.126.170.174] helo=janus.localdomain) by mail.sourceforge.net with esmtp (Exim 4.44) id 1H2Zhc-00061B-Pi for nfs@lists.sourceforge.net; Thu, 04 Jan 2007 13:00:48 -0800 To: Stephan Henningsen In-Reply-To: <459CD54E.9050107@amplex.dk> List-Id: "Discussion of NFS under Linux development, interoperability, and testing." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfs-bounces@lists.sourceforge.net Errors-To: nfs-bounces@lists.sourceforge.net On Thu, Jan 04, 2007 at 11:22:06AM +0100, Stephan Henningsen wrote: > Trond Myklebust wrote: > > NFS will only support a maximum of 16 supplemental groups. That is a > > protocol limitation, not a Linux implementation issue. > > I just did "chgrp dialout /var/files" on the server, changing to one of the > first 16 supplemental groups, and now it works. Thank you very much for > solving this mystery! > > > See for instance > > http://nfsworld.blogspot.com/2005/03/whats-deal-on-16-group-id-limitation.html > > if you want a more complete explanation of why this is the case. > > This suggests moving from NFS3 to NFS4. Is that an easy task? Mount as > "nfs4" instead of "nfs" and compile the kernel nfs server to support nfs4? There's an alternative: See http://www.frankvm.com/nfs-ngroups/ for a patch to get rid of the 16 groups limit on linux NFS2/NFS3 clients without breaking the protocol. -- Frank ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs