On Mon, Jun 28, 2010 at 6:54 PM, Sunil Mushran <sunil.mushran at oracle.com> wrote: > > Which version of tools are you running? block64 was added after ocfs2-tools > 1.4.2. 1.4.4 (from Debian experimental). "-J block64" It works fine for mkfs.ocfs2; just not for tunefs.ocfs2...