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Running the TeX Live dvd without installation
---------------------------------------------

Unix/Linux: in a terminal, run tl-portable.sh, which is in the root
directory of the dvd. This starts up a secondary shell with the
necessary environment settings. When the script runs for the first
time, some files will be generated in a directory .texlive2008 under
the user's home directory. On subsequent runs, the secondary shell
will start almost instantaneously.

Windows: either double-click tl-portable.bat in the root of the dvd,
or run it from a command prompt. As under Unix, the first time some
files have to be generated, this time under c:\Documents and
Settings\<username>\.texlive2008. Subsequent times, the batchfile
finishes almost instanteneously.

On either platform, you can run several parallel TeXLive
terminals/command prompts.

TeX Live on a usb stick
-----------------------

Copy the bin, texmf, texmf-dist and tlpkg directories to your usb
stick. Also copy all the files in the root. If you place a
texmf-local directory in the root it will also be found and used. In
this case, tl-portable will notice that the usb stick is writable
and use it for generated files. You can burn the contents of the usb
stick back to dvd.

Customization
-------------

Instead of a secondary shell or command prompt, you can make
variations of tl-portable which start a TeX-aware editor instead of
a secondary shell or command prompt.

.texlua filetype
----------------

Under Windows, registry entries are created to associate .texlua
files with texlua.exe. These are per-user entries, but there is no
way to restrict the effect to a particular session. So this is a
definite lapse in perfect portability and may even interfere with a
properly installed TeXLive.