add host_device format description to qemu-img manpage
Converting files using "qemu-img convert" onto logical volumes (or any block device) you need to use the currently undocumented "host_device" format. This patch adds the required documentation to the manpage. Reported-by: Adrian Bridgett <adrian@bitcube.co.uk> Signed-off-by: Adrian Bridgett <adrian@bitcube.co.uk> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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@ -37,6 +37,12 @@ Linux or NTFS on Windows), then only the written sectors will reserve
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space. Use @code{qemu-img info} to know the real size used by the
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image or @code{ls -ls} on Unix/Linux.
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@item host_device
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Host device format. This format should be used instead of raw when
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converting to block devices or other devices where "holes" are not
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supported.
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@item qcow2
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QEMU image format, the most versatile format. Use it to have smaller
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images (useful if your filesystem does not supports holes, for example
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