If you want to translate the installation messages to a different
language, you'll have to provide the following files:

utilities/dinstall/messages/lang_<LANG>.h
scripts/rootdisk/messages/<LANG>/{release_notes,boot_message}
scripts/rescue/messages/<LANG>/{debian.txt,debian.txt.vme,
	f1.txt,f10.txt,f2.txt,f3.txt,f4.txt,f5.txt,
	f6.txt,f7.txt,f8.txt,f9.txt,install.sh.txt,readme.txt}
scripts/basedisks/po/<LANG>.po

(substitute <LANG> by the ISO code of your language).

The originals are the "C language" ones (lang_C.h, messages/C/* ...)
except for the original .po file, which is rootprofile.pot (gettext
style).

The utilities/dinstall/messages/check-complete script by Joey is very
useful to know if your translation is up-to-date.
"./check-complete C <LANG>" will show differences between the list of
"defines" in the lang_C.h file and the list of "defines" in lang_<LANG>.h
A missing "define", or a misplaced one probably mean that your
translation is outdated.

Charset to use

In all texts use the local character encoding.  The installation
routine will convert texts into IBMPC charset where it is needed.

Translators:

The following is a list of some people that have worked in the
translation of the installation messages to any language:

Bulgarian:	George Tchavdarov <george@sagabg.net>
Croatian:	Matej Vela <mvela@public.srce.hr>
Czech:		Pavel Makovec <pavelm@terminal.cz>
		Jiri Masik <masik@debian.cz>
                Vilem Vychodil <vychodiv@alpha.inf.upol.cz>
Esperanto:	Edmund Grimley Evans <edmundo@rano.demon.co.uk>
Finnish:	Tapio Lehtonen <tale@iki.fi>
		Antti-Juhani Kaijanaho <gaia@iki.fi>
French:		Christophe Le Bars <clebars@debian.org>
German:		Hartmut Koptein <koptein@et-inf.fho-emden.de>
		Martin Schulze <joey@infodrom.north.de>
		Philipp Stratmann <philipp.stratmann@student.uni-tuebingen.de>
		Joerg Friedrich <Joerg.Dieter.Friedrich@uni-konstanz.de>
		Gerd Bavendiek <bav@rw.sni.de>
Italian:	Michele Dalla Silvestra <dalla@pluto.linux.it>
		Paolo Didon <dido@prosa.it>
Japanese:	Yoshizumi Endo <y-endo@ceres.dti.ne.jp> [1]
		Atsushi Kamoshida <kamop@debian.org>
Polish:		Piotr Pogorzelski <piotr.pogorzelski@ippt.gov.pl>
Portuguese:	Eduardo Marcel Macan <macan@debian.org>
		Jose Carlos Benfati <benfati@zzp.com.br>
		Gleydson Silva <gleydson@linuxbr.com.br>
		Paulo Henrique Baptista de Oliveira <baptista@cos.ufrj.br>
Russian:	Michael Sobolev <mss@transas.com>
		Alexey Vyskubov <alexey@piter-press.ru>
		Aleksey Novodvorsky <aen@logic.ru>
		Peter Novodvorsky <petya@logic.ru>
		Paul Romanchenko <paul@lab321.ru>
Slovak:		Miroslav Vasko <vasko@debian.cz>
Spanish:	Enrique Zanardi <ezanard@debian.org>
		Fernando Herrera <fherrera@eurielec.clubs.etsit.upm.es>
		Sergio Gmez Bachiller <sergio@cartero.com>
		Gonzalo G. Agull <agullo@idealobjects.com>
		"Ignacio J. Alonso" <ijalonso@jet.es>
		Tinguaro Barreno <tbarreno@debian.org>
		Pedro Gracia <pedro@id-agora.com>
		Angel David Rancel Mendoza <angel@delegacion.fisica.ull.es>
Swedish:	G\vran Andersson <goran@debian.org> (obsolete)
                Nils-Erik Svangrd <nisse@medio.mh.se>

There are a lot of names that should be on this list, and currently aren't.
I just don't know your names yet! :-)
