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source: vbox/trunk/doc/manual/en_US/dita/topics/efibootargs.dita@ 105145

Last change on this file since 105145 was 98549, checked in by vboxsync, 2 years ago

Docs: bugref:10302. Uploading .dita user manual files we received from the doc team on 25th Jan.

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1<?xml version='1.0' encoding='UTF-8'?>
2<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
3<topic xml:lang="en-us" id="efibootargs">
4 <title>Specifying Boot Arguments</title>
5
6 <body>
7 <p>
8 It is currently not possible to manipulate EFI variables from
9 within a running guest. For example, setting the
10 <codeph>boot-args</codeph> variable by running the
11 <userinput>nvram</userinput> tool in a Mac OS X guest will not work.
12 As an alternative method,
13 <codeph>VBoxInternal2/EfiBootArgs</codeph> extradata can be
14 passed to a VM in order to set the <codeph>boot-args</codeph>
15 variable. To change the <codeph>boot-args</codeph> EFI
16 variable, use the following command:
17 </p>
18 <pre xml:space="preserve">VBoxManage setextradata "VM name" VBoxInternal2/EfiBootArgs &lt;value&gt;</pre>
19 </body>
20
21</topic>
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