user_BasicConcepts.xml

Timestamp:

May 15, 2014 3:36:42 PM (11 years ago)

Author:

vboxsync

Message:

User manual: mention about connection between VBoxInternal2/EfiBootArgs extradata and boot-args EFI variable.

File:

trunk/doc/manual/en_US/user_BasicConcepts.xml

-              r51257
+              r51261
       VM is powered off and remains persistent until changed.</para>
     </sect2>
+    <sect2 id="efibootargs">
+      <title>Specifying boot arguments</title>
+      <para>It is currently not possible to manipulate EFI variables from within a running guest
+      (e.g., setting the "boot-args" variable by running the <computeroutput>nvram</computeroutput> tool in a Mac OS X guest will not work).
+      As an alternative way, "VBoxInternal2/EfiBootArgs" extradata can be passed to a VM in order to set
+      the "boot-args" variable. To change the "boot-args" EFI variable:
+      <screen>VBoxManage setextradata "VM name" VBoxInternal2/EfiBootArgs &lt;value&gt;</screen>
+      </para>
+    </sect2>
   </sect1>
 </chapter>

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