3 This is the GRUB. Welcome.
5 This file contains instructions for compiling and installing the GRUB.
10 GRUB depends on some software packages installed into your system. If
11 you don't have any of them, please obtain and install them before
17 * GNU binutils 2.9.1.0.23 or later
18 * Other standard GNU/Unix tools
19 * LZO 1.02 or later (optional)
21 If you'd like to develop GRUB, these below are also required.
24 * Autoconf 2.59 or later
29 The `configure' shell script attempts to guess correct values for
30 various system-dependent variables used during compilation. It uses
31 those values to create a `Makefile' in each directory of the package.
32 It may also create one or more `.h' files containing system-dependent
33 definitions. Finally, it creates a shell script `config.status' that
34 you can run in the future to recreate the current configuration, a
35 file `config.cache' that saves the results of its tests to speed up
36 reconfiguring, and a file `config.log' containing compiler output
37 (useful mainly for debugging `configure').
39 If you need to do unusual things to compile the package, please try to
40 figure out how `configure' could check whether to do them, and mail
41 diffs or instructions to the address given in the `README' so they can
42 be considered for the next release. If at some point `config.cache'
43 contains results you don't want to keep, you may remove or edit it.
45 The file `configure.ac' is used to create `configure' by a program
46 called `autoconf'. You only need `configure.in' if you want to change
47 it or regenerate `configure' using a newer version of `autoconf'.
53 The simplest way to compile this package is:
55 1. `cd' to the directory containing the package's source code and
56 type `./configure' to configure the package for your system. If
57 you're using `csh' on an old version of System V, you might need
58 to type `sh ./configure' instead to prevent `csh' from trying to
59 execute `configure' itself.
61 Running `configure' takes awhile. While running, it prints some
62 messages telling which features it is checking for.
64 2. Type `make' to compile the package.
66 3. Optionally, type `make check' to run any self-tests that come with
69 4. Type `make install' to install the programs and any data files and
72 5. You can remove the program binaries and object files from the
73 source code directory by typing `make clean'. To also remove the
74 files that `configure' created (so you can compile the package for
75 a different kind of computer), type `make distclean'. There is
76 also a `make maintainer-clean' target, but that is intended mainly
77 for the package's developers. If you use it, you may have to get
78 all sorts of other programs in order to regenerate files that came
79 with the distribution.
82 Compiling For Multiple Architectures
83 ====================================
85 You can compile the package for more than one kind of computer at the
86 same time, by placing the object files for each architecture in their
87 own directory. `cd' to the directory where you want the object files
88 and executables to go and run the `configure' script. `configure'
89 automatically checks for the source code in the directory that
90 `configure' is in and in `..'.
96 By default, `make install' will install the package's files in
97 `/usr/local/bin', `/usr/local/man', etc. You can specify an
98 installation prefix by giving `configure' the option `--prefix=PATH'.
100 You can specify separate installation prefixes for
101 architecture-specific files and architecture-independent files. If
102 you give `configure' the option `--exec-prefix=PATH', the package will
103 use PATH as the prefix for installing programs and libraries.
104 Documentation and other data files will still use the regular prefix.
106 In addition, if you use an unusual directory layout you can give
107 options like `--bindir=PATH' to specify different values for
108 particular kinds of files. Run `configure --help' for a list of the
109 directories you can set and what kinds of files go in them.
111 If the package supports it, you can cause programs to be installed
112 with an extra prefix or suffix on their names by giving `configure'
113 the option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
115 Please note, however, that the GRUB knows where it is located in the
116 filesystem. If you have installed it in an unusual location, the
117 system might not work properly, or at all. The chief utility of these
118 options for the GRUB is to allow you to "install" in some alternate
119 location, and then copy these to the actual root filesystem later.
125 If you want to set default values for `configure' scripts to share,
126 you can create a site shell script called `config.site' that gives
127 default values for variables like `CC', `cache_file', and `prefix'.
128 `configure' looks for `PREFIX/share/config.site' if it exists, then
129 `PREFIX/etc/config.site' if it exists. Or, you can set the
130 `CONFIG_SITE' environment variable to the location of the site script.
131 A warning: not all `configure' scripts look for a site script.
137 `configure' recognizes the following options to control how it
141 Use and save the results of the tests in FILE instead of
142 `./config.cache'. Set FILE to `/dev/null' to disable caching, for
143 debugging `configure'.
146 Print a summary of the options to `configure', and exit.
151 Do not print messages saying which checks are being made.
154 Look for the package's source code in directory DIR. Usually
155 `configure' can determine that directory automatically.
158 Print the version of Autoconf used to generate the `configure'