diff --git a/chapter01/how.xml b/chapter01/how.xml index b628fbedf..a690fb595 100644 --- a/chapter01/how.xml +++ b/chapter01/how.xml @@ -44,36 +44,18 @@ discusses the setup of an appropriate working environment. Please read carefully as it explains several important issues you need be aware of before beginning to - work your way through and beyond. + work your way through and beyond. - explains the installation of - a number of packages that are needed to resolve circular - dependencies—for example, to compile a compiler, you need a compiler. - or to unpack the tar package, you need tar. + , explains the installation of + the initial tool chain, (binutils, gcc, and glibc) using cross compilation + techniques to isolate the new tools from the host system. - also shows you how to - build a C cross-compiling toolchain as a first step, including binutils - and GCC. Cross-compiling is not absolutely needed since the machine we'll - run LFS on is the same as the one we build on, but it has the advantage - of clearly separating the already installed system and the future LFS one. - The next step is to build Glibc, the C library. Glibc will be compiled by - the toolchain programs built previously. Then, the missing bits for a - C++ cross-compiling toolchain will be built. It is then possible to build - packages that are needed to resolve circular dependencies in such a way - that the produced executables and libraries are completely independent - from the installed distribution. + shows you how to + cross-compile basic utilities using the just built cross-toolchain. - The remainder of adds - the packages necessary to get a complete build environment. This is done - after running the chroot (change root) program to enter - a virtual environment and start a new shell whose root directory will be - set to the LFS partition. This is very similar to rebooting and instructing - the kernel to mount the LFS partition as the root partition. The system - does not actually reboot, but instead uses chroot - because creating a bootable system requires additional work which is not - ecessary just yet. The major advantage is that chrooting - allows to isolate the build process from the installed distribution, while - using the installed kernel. + then enters a + "chroot" environment and uses the previously built tools to build + the additional tools needed to build and test the final system. This effort to isolate the new system from the host distribution may seem excessive. A full technical explanation as to why this is done is diff --git a/chapter01/whatsnew.xml b/chapter01/whatsnew.xml index 7b009d1e3..d68beb666 100644 --- a/chapter01/whatsnew.xml +++ b/chapter01/whatsnew.xml @@ -11,6 +11,10 @@ What's new since the last release + In this version of LFS, there has been a major reorganization + of the book using techniques that avoid changing the host system + and provides a more straight forward build process. + Below is a list of package updates made since the previous release of the book.