On Thu, Nov 14, 2013 at 03:46:33PM -0500, Gene Czarcinski wrote:
> OK, another try.  Preallocate a file using dd if=/dev/zero
> of=/var/lib/libvirt/images/xxx.img bs=1024 count=12587000 and the
> result is a 12GB (more or less) virtual disk.

I would recommend using the 'fallocate' command, and not 'dd' for
this.  fallocate uses a system call which tells the filesystem your
intentions.  It's also much faster.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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