docs: Export "superusers" variable to apply to submenus
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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@ -5717,7 +5717,8 @@ the GRUB command line, edit menu entries, and execute any menu entry. If
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@samp{superusers} is set, then use of the command line and editing of menu
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entries are automatically restricted to superusers. Setting @samp{superusers}
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to empty string effectively disables both access to CLI and editing of menu
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entries.
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entries. Note: The environment variable needs to be exported to also affect
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the section defined by the @samp{submenu} command (@pxref{submenu}).
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Other users may be allowed to execute specific menu entries by giving a list of
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usernames (as above) using the @option{--users} option to the
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