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Installer/Updater/Layout
========================
layout
------
root directory ROOT (texlive2008 or texlive-2008 or ...)
ROOT/texmf-dist
ROOT/texmf
ROOT/texmf-config
ROOT/texmf-var
ROOT/bin
ROOT/tlpkg/texlive.tlpdb
ROOT/tlpkg/tlpobj
ROOT/tlpkg/ ...
As suggested by Reinhard, and discussed with Karl, I propose to put the
texlive.tlpdb NOT into ROOT, but "hide" it somehow, i.e., put it into
ROOT/tlpkg
distribution methods
--------------------
inst CD/DVD
contains all the packages in zip (or lzma or ...) form, plus the
installer and the texlive.tlpdb
live DVD
contains a live tree, no zip media, plus the texlive.tlpdb
network
zip files
"package version" file
texlive.tlpdb (??? necessary, could be ignored)
format of the zip files
----------------------
(can be another compression method)
The zip files contain the files with pathes relative to ROOT, i.e.,
./texmf-dist/...
./texmf/...
./bin/...
Furthermore, the zip file contains a TLPOBJ file in
./tlpkg/tlpobj/NAME.tlpobj
This allows the distribution of "packages" even from outside of TeX Live
(imagine that someone creates a minion-pro.zip for installation into
the TeX Live installation).
OTOH this is a duplication in some cases since the inst and live media
the same information is present in the texlive.tlpdb. But I think that the
win of "self containment" over "no duplication" is more important.
Furthermore, Karl suggested that some people may want to recreate the
texlive.tlpdb in case it was destroyed. For this we have to ship the
tlpobj files.
Installation procedure
----------------------
- from inst CD
--------------
files in the zip
tlpobj data from shipped texlive.tlpdb or the zip file
- from network (used also for the updater)
------------------------------------------
files in the zip
tlpobj data from the zip file or from the network tlpdb (if present)
- from full/live DVD:
---------------------
files from the DVD
tlpobj data from the shipped texlive.tlpdb
(from here on action for all)
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