This chapter includes a list of packages that need to be downloaded for building a basic Linux system. The listed version numbers correspond to versions of the software that are known to work, and this book is based on their use. We highly recommend not using newer versions because the build commands for one version may not work with a newer version. The newest package versions may also have problems that require work-arounds. These work-arounds will be developed and stabilized in the development version of the book.
Download locations may not always be accessible. If a download location has changed since this book was published, Google (http://www.google.com/) provides a useful search engine for most packages. If this search is unsuccessful, try one of the alternative means of downloading discussed at http://cross-lfs.org/files/packages/embedded-0.0.1/.
Downloaded packages and patches will need to be stored somewhere
that is conveniently available throughout the entire build. A working
directory is also required to unpack the sources and build them.
${CLFS}/sources can be used both
as the place to store the tarballs and patches and as a working
directory. By using this directory, the required elements will be
located on the CLFS partition and will be available during all stages
of the building process.
To create this directory, execute, as user root, the following command before
starting the download session:
mkdir -v ${CLFS}/sourcesMake this directory writable and sticky. When a directory is marked “sticky”, that means that even if multiple users have write permission on that directory, any file within that directory can only be deleted or modified by its owner. The following command will enable the write and sticky modes:
chmod -v a+wt ${CLFS}/sources