From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wido den Hollander Subject: Re: mount: 10.0.6.10:/: can't read superblock Date: Tue, 05 Jun 2012 20:14:48 +0200 Message-ID: <4FCE4C98.8020101@widodh.nl> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp02.mail.pcextreme.nl ([109.72.87.138]:35888 "EHLO smtp02.mail.pcextreme.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755651Ab2FESOv (ORCPT ); Tue, 5 Jun 2012 14:14:51 -0400 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Martin Wilderoth Cc: ceph-devel Hi Martin, On 06/05/2012 08:07 PM, Martin Wilderoth wrote: > Hello > > Is there a way to recover this error. > > mount -t ceph 10.0.6.10:/ /mnt -vv -o name=admin,secret=XXXXXXXXXXXXXXXXXXXXXXX > [ 506.640433] libceph: loaded (mon/osd proto 15/24, osdmap 5/6 5/6) > [ 506.650594] ceph: loaded (mds proto 32) > [ 506.652353] libceph: client0 fsid a9d5f9e1-4bb9-4fab-b79b-ba4457631b01 > [ 506.670876] Intel AES-NI instructions are not detected. > [ 506.678861] libceph: mon0 10.0.6.10:6789 session established > mount: 10.0.6.10:/: can't read superblock > Could you share some more information? For example the output from: ceph -s Did you change anything to the cluster since it worked? And what version are you running? > One of my mds logs has 24G of data. Is it still running? > > I have some rbd devices that I would like to keep. RBD doesn't use the MDS nor the POSIX filesystem, so you will probably be fine, but we need the output of "ceph -s" first. Does this work? $ rbd ls $ rados -p rbd ls Wido > > /Regards Martin > > > > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html