* docs/grub.texi (Changes from GRUB Legacy): New section.

(Future): Fix typo.

diff --git a/ChangeLog b/ChangeLog
index 57209d1f02aad941f0a89e1fbb8c386079a5f323..badca6588dd7781e1f730bf18af6aa8b062733bd 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-07-02  Colin Watson  <cjwatson@ubuntu.com>
+
+       * docs/grub.texi (Changes from GRUB Legacy): New section.
+       (Future): Fix typo.
+
 2010-07-02  Colin Watson  <cjwatson@ubuntu.com>
 
        * util/grub-mkconfig_lib.in (grub_file_is_not_garbage): Sometimes

diff --git a/docs/grub.texi b/docs/grub.texi
index ba5b43a1c4c705eb9be011197aec9663175ccaeb..cf73a2d388a2220e4eb27e3d7c0833c49330b93f 100644 (file)
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -106,6 +106,7 @@ This edition documents version @value{VERSION}.
 * Overview::                    What exactly GRUB is and how to use it
 * History::                     From maggot to house fly
 * Features::                    GRUB features
+* Changes from GRUB Legacy::    Differences from previous versions
 * Role of a boot loader::       The role of a boot loader
 @end menu
 
@@ -190,6 +191,74 @@ extents, and by the end of 2009 multiple major distributions were installing
 it by default.
 
 
+@node Changes from GRUB Legacy
+@section Differences from previous versions
+
+GRUB 2 is a rewrite of GRUB (@pxref{History}), although it shares many
+characteristics with the previous version, now known as GRUB Legacy.  Users
+of GRUB Legacy may need some guidance to find their way around this new
+version.
+
+@itemize @bullet
+@item
+The configuration file has a new name (@file{grub.cfg} rather than
+@file{menu.lst} or @file{grub.conf}), new syntax (@pxref{Configuration}) and
+many new commands (@pxref{Commands}).  Configuration cannot be copied over
+directly, although most GRUB Legacy users should not find the syntax too
+surprising.
+
+@item
+@file{grub.cfg} is typically automatically generated by
+@command{grub-mkconfig} (@pxref{Simple configuration}).  This makes it
+easier to handle versioned kernel upgrades.
+
+@item
+Partition numbers in GRUB device names now start at 1, not 0 (@pxref{Naming
+convention}).
+
+@item
+The configuration file is now written in something closer to a full
+scripting language: variables, conditionals, and loops are available.
+
+@item
+A small amount of persistent storage is available across reboots, using the
+@command{save_env} and @command{load_env} commands in GRUB and the
+@command{grub-editenv} utility.
+
+@item
+GRUB 2 has more reliable ways to find its own files and those of target
+kernels on multiple-disk systems, and has commands (@pxref{search}) to find
+devices using file system labels or Universally Unique Identifiers (UUIDs).
+
+@item
+GRUB 2 is available for several other types of system in addition to the PC
+BIOS systems supported by GRUB Legacy: PC EFI, PC coreboot, PowerPC, SPARC,
+and MIPS Lemote Yeeloong are all supported.
+
+@item
+Many more file systems are supported, including but not limited to ext4,
+HFS+, and NTFS.
+
+@item
+GRUB 2 can read files directly from LVM and RAID devices.
+
+@item
+A graphical terminal and a graphical menu system are available.
+
+@item
+GRUB 2's interface can be translated, including menu entry names.
+
+@item
+The image files (@pxref{Images}) that make up GRUB have been reorganised;
+Stage 1, Stage 1.5, and Stage 2 are no more.
+
+@item
+GRUB 2 puts many facilities in dynamically loaded modules, allowing the core
+image to be smaller, and allowing the core image to be built in more
+flexible ways.
+@end itemize
+
+
 @node Features
 @section GRUB features
 
@@ -2655,7 +2724,7 @@ Once we get your report, we will try to fix the bugs.
 We started the next generation of GRUB, GRUB 2. GRUB 2 includes
 internationalization, dynamic module loading, real memory management,
 multiple architecture support, a scripting language, and many other
-nice feature. If you are interested in the development of GRUB 2, take
+nice features. If you are interested in the development of GRUB 2, take
 a look at @uref{http://www.gnu.org/software/grub/grub.html, the
 homepage}.