svn commit: r45588 - head/en_US.ISO8859-1/books/handbook/boot

Warren Block wblock at FreeBSD.org
Wed Sep 10 22:34:24 UTC 2014


Author: wblock
Date: Wed Sep 10 22:34:23 2014
New Revision: 45588
URL: http://svnweb.freebsd.org/changeset/doc/45588

Log:
  Wording and clarity improvements.

Modified:
  head/en_US.ISO8859-1/books/handbook/boot/chapter.xml

Modified: head/en_US.ISO8859-1/books/handbook/boot/chapter.xml
==============================================================================
--- head/en_US.ISO8859-1/books/handbook/boot/chapter.xml	Wed Sep 10 17:46:07 2014	(r45587)
+++ head/en_US.ISO8859-1/books/handbook/boot/chapter.xml	Wed Sep 10 22:34:23 2014	(r45588)
@@ -102,26 +102,25 @@
       of the <acronym>BIOS</acronym>.</para>
 
     <note>
-      <para>amd64 hardware is backward compatible as it understands
-	<acronym>BIOS</acronym> instructions.  Newer hardware uses
-	a GUID Partition Table (<acronym>GPT</acronym>) instead of a
-	<acronym>MBR</acronym>.  &os; can boot from a
-	<acronym>MBR</acronym> or <acronym>GPT</acronym> partition.
-	When booting from <acronym>GPT</acronym>, &os; can boot from
-	either a legacy <acronym>BIOS</acronym> or an Extensible
-	Firmware Interface (<acronym>EFI</acronym>).  Work is in
-	progress to provide Unified Extensible Firmware Interface
-	(<acronym>UEFI</acronym>) support.</para>
+      <para>&os; provides for booting from both the older
+	<acronym>MBR</acronym> standard, and the newer GUID Partition
+	Table (<acronym>GPT</acronym>).  <acronym>GPT</acronym>
+	partitioning is often found on computers with the Unified
+	Extensible Firmware Interface (<acronym>UEFI</acronym>).
+	However, &os; can boot from <acronym>GPT</acronym> partitions
+	even on machines with only a legacy <acronym>BIOS</acronym>
+	with &man.gptboot.8;.  Work is under way to provide direct
+	<acronym>UEFI</acronym> booting.</para>
     </note>
 
     <indexterm><primary>Master Boot Record
-	<acronym>MBR</acronym>)</primary></indexterm>
+	(<acronym>MBR</acronym>)</primary></indexterm>
 
     <indexterm><primary>Boot Manager</primary></indexterm>
 
     <indexterm><primary>Boot Loader</primary></indexterm>
 
-    <para>The code within the <acronym>MBR</acronym> is usually
+    <para>The code within the <acronym>MBR</acronym> is typically
       referred to as a <emphasis>boot manager</emphasis>, especially
       when it interacts with the user.  The boot manager usually has
       more code in the first track of the disk or within the file
@@ -134,10 +133,10 @@
     <para>If only one operating system is installed, the
       <acronym>MBR</acronym> searches for the first bootable (active)
       slice on the disk, and then runs the code on that slice to load
-      the remainder of the operating system.  If multiple operating
+      the remainder of the operating system.  When multiple operating
       systems are present, a different boot manager can be installed
-      which displays the list of operating systems so that the user
-      can choose which one to boot.</para>
+      to display a list of operating systems so the user
+      can select one to boot.</para>
 
     <para>The remainder of the &os; bootstrap system is divided into
       three stages.  The first stage knows just enough to get the
@@ -556,8 +555,7 @@ boot:</screen>
 	<indexterm><primary>console</primary></indexterm>
 
 	<para>A user can specify this mode by booting with
-	  <option>-s</option> or by setting the <envar>boot
-	  _ single</envar> variable in
+	  <option>-s</option> or by setting the <envar>boot_single</envar> variable in
 	  <application>loader</application>.  It can also be reached
 	  by running <command>shutdown now</command> from multi-user
 	  mode.  Single-user mode begins with this message:</para>


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