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6760cc4bfd
https://bugzilla.redhat.com/show_bug.cgi?id=1430679 As it turns out some file headers (e.g. ext4) may be larger/longer than the 512 bytes of zeros being written prior to a pvcreate, so let's write out 2048 bytes similar to how the pvcreate sources would peek at the first 4 sectors of the device. Make sure there is at enough bytes on the device to clear before doing doing the clear - just to be sure.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>