doc: add a note about running ubuntu-image as root or with sudo

Signed-off-by: Paul Mars <[email protected]>
canonical · Jun 20, 2024 · 74adba3 · 74adba3
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commit 74adba3
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diff --git a/doc/reference/ubuntu-image.rst b/doc/reference/ubuntu-image.rst
@@ -39,6 +39,7 @@ Basic syntax
 
     ubuntu-image classic [options] image_definition.yaml
 
+.. note:: ``ubuntu-image`` requires **elevated permissions**. Run it as **root** or with ``sudo``.
 
 General options
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