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-rw-r--r--qemu-img.texi10
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diff --git a/qemu-img.texi b/qemu-img.texi
index 9cee2eaa6..482c21b39 100644
--- a/qemu-img.texi
+++ b/qemu-img.texi
@@ -4,6 +4,16 @@ usage: qemu-img command [command options]
@c man end
@end example
+@c man begin DESCRIPTION
+qemu-img allows you to create, convert and modify images offline. It can handle
+all image formats supported by QEMU.
+
+@b{Warning:} Never use qemu-img to modify images in use by a running virtual
+machine or any other process; this may destroy the image. Also, be aware that
+querying an image that is being modified by another process may encounter
+inconsistent state.
+@c man end
+
@c man begin OPTIONS
The following commands are supported: