+There is a disk image of a @q{remix} of Ubuntu GNU/Linux available for
+download which includes all the necessary software and tools to compile
+both LilyPond and the documentation. Called the
+@qq{Ubuntu LilyPond Developer Remix}, but known simply as @qq{LilyDev}
+for short. Although it is not possible to compile LilyPond on Windows
+and extremely difficult on MacOS, LilyDev can be installed and run
+inside a @q{virtual machine} on any of these operating systems without
+disturbing your main operating system. The LilyDev disk image can also
+be burnt to a DVD and installed like any other Ubuntu GNU/Linux
+distribution.
+
+Most virtualization software can be used but we recommend VirtualBox as
+it is available for all major operating systems and is easy to install
+& configure.
+
+If you are not familiar with GNU/Linux, it may be beneficial to read a
+couple of @qq{introduction to Ubuntu} web pages.
+
+Some contributors have recommended a free PDF:
+
+@example
+@uref{http://www.ubuntupocketguide.com/}
+@end example
+
+For those interested, the LilyDev remix is currently based on a 32bit
+version of 10.04 LTS Ubuntu (Lucid Lynx).
+
+@warning{Apart from installing and configuring LilyDev in VirtualBox,
+the rest of the chapter assumes that you are comfortable using the
+command-line. While this chapter is intended for users who may have
+never created a patch or compiled software before, experienced
+developers (who prefer to use their own development environment) may
+still find it instructive to skim over this section.}