From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l968Zvr5022000 for ; Sat, 6 Oct 2007 04:35:57 -0400 Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.180]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id l968ZuVO003765 for ; Sat, 6 Oct 2007 04:35:56 -0400 Received: by wa-out-1112.google.com with SMTP id j37so980191waf for ; Sat, 06 Oct 2007 01:35:55 -0700 (PDT) Message-ID: <55e074e80710060135g264a3eeatc57178975862f288@mail.gmail.com> Date: Sat, 6 Oct 2007 01:35:55 -0700 From: "Michael Jiang" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_33241_6582386.1191659755601" Subject: [linux-lvm] could not mount LVM2 read only snapshot Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: To: linux-lvm@redhat.com ------=_Part_33241_6582386.1191659755601 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline I use 'lvcreate -p r' to create a read only snapshot. got following error message when I try to mount it "mount: wrong fs type, bad option, bad superblock on /dev/VolGroup00/snap, or too many mounted file systems" If I do not use '-p r' and mount -r, then it works fine. kernel 2.6.9-42.ELsmp # lvm version LVM version: 2.02.06 (2006-05-12) Library version: 1.02.07 (2006-05-11) Driver version: 4.5.0 Anyone had the same problem before? Thanks Michael ------=_Part_33241_6582386.1191659755601 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline I use 'lvcreate -p r' to create a read only snapshot. got following error message when I try to mount it

"mount: wrong fs type, bad option, bad superblock on /dev/VolGroup00/snap,
      or too many mounted file systems"

If I do not use '-p r' and mount -r, then it works fine.

kernel 2.6.9-42.ELsmp
# lvm version
  LVM version:     2.02.06 (2006-05-12)
  Library version: 1.02.07 (2006-05-11)
  Driver version:  4.5.0

Anyone had the same problem before?

Thanks

Michael
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