root/trunk/0install4lfs.txt

AUTHOR: Ilja Honkonen <ilja.honkonen@helsinki.fi>

DATE: 2004-06-18

LICENSE: GNU Free Documentation License Version 1.2

SYNOPSIS: How to install Zero Install on LFS

DESCRIPTION:
This hint describes how I installed Zero Install on my newly created
Linux From Scratch 5.0 system. Zero Install seems like a very good way of
(not :)) installing and using software that has been "packaged" by its
developers, thus eliminating the need for centralized packaging of software
like Debian and Red Hat have been doing. This hint should be suitable for
anyone who has built himself a LFS system.


PREREQUISITES:
I installed Zero Install on a Linux From Scratch 5.0 system. You could
probably use an earlier version of LFS and you should be able to use a later
version of LFS for this hint.

You will need the following packages:

Zero Install from
http://prdownloads.sourceforge.net/zero-install/zero-install-0.1.24.tar.gz.gpg?download

LazyFS kernel module from
http://prdownloads.sourceforge.net/zero-install/lazyfs-linux-0.1.23-smp.tgz.gpg?download

dbus from http://freedesktop.org/Software/dbus/releases/dbus-0.21.tar.gz

These are needed too, but they are also installed in BLFS 5.

wget from http://ftp.gnu.org/gnu/wget/wget-1.9.1.tar.gz

expat from http://prdownloads.sourceforge.net/expat/expat-1.95.7.tar.gz?download

gnupg from http://public.ftp.planetmirror.com/pub/gnupg/gnupg-1.2.4.tar.bz2

glib from http://gd.tuwien.ac.at/graphics/gimp/gtk/v1.2/glib-1.2.10.tar.gz

Python from http://www.python.org/ftp/python/2.3.4/Python-2.3.4.tar.bz2

pkgconfig from
http://freedesktop.org/Software/pkgconfig/releases/pkgconfig-0.15.0.tar.gz


HINT:

Start by installing wget, expat, gnupg, glib, python and pkgconfig as described
in Beyond Linux From Scratch 5.1. I have repeated the instructions below:

Wget-1.9.1
./configure --prefix=/usr --sysconfdir=/etc && make && make install

expat-1.95.7
./configure --prefix=/usr && make && make install

GnuPG-1.2.4
./configure --prefix=/usr --libexecdir=/usr/lib && make && make install &&
chmod 4755 /usr/bin/gpg

Glib-1.2.10
./configure --prefix=/usr && make && make install

pkgconfig-0.15.0
./configure --prefix=/usr && make && make install

Python-2.3.4
I have omitted instructions on patching python-2.3.3 as was done in BLFS 5.1
because I used python version 2.3.4. This worked for me...
./configure --prefix=/usr --enable-shared && make && make install


Then install dbus which is required by zero-install
dbus-0.21
./configure --prefix=/usr && make && make install

I used gpg to get zero-install and lazyfs-linux into extractable form:
gpg lazyfs-linux-0.1.23-smp.tgz.gpg
unless you have 0install authors key in your keyring gpg will complain but
that is ok...

Now install the kernel module that is required by 0install
LazyFS-0.1.23
./configure && make && make install

Finally install Zero Install 0.1.24
0install homepage recommends to run zero install as a non root user, which
seems like a good idea. Below are the commands that I used to create a user
and a group named zeroinst, adapted from BLFS 5 instructions about apache

groupadd zeroinst &&
useradd -c 0install -d /dev/null -g zeroinst -s /bin/sh zeroinst

Then 0install itself:

./configure --prefix=/usr --with-user=zeroinst \
--with-initdir=/etc/rc.d/init.d && make && make install

Now you should have everyting installed and be able to try out 0install.
First start Zero Install with
/etc/rc.d/init.d/0install start

then try this command
cat /uri/0install/zero-install.sourceforge.net/demo/test.txt

If it prints
It worked!
then... it worked!!

Now since I had not installed anything else but LFS 5.0 and what is in this
hint, I could not use many of the packages that have been prepared, but I
found python and java which seemed to work fine using these commands (note
I used an Athlon machine, and this may take a while depending on how fat ur
pipe is)
/uri/0install/zero-install.sourceforge.net/links/AachenUniversity/python.org/2.3/Linux-ix86/bin/python
/uri/0install/zero-install.sourceforge.net/links/AachenUniversity/java.sun.com/j2re/Linux-ix86/1.4.2/bin/java

If you have a graphical working environment, gtk and friends installed, you
can use Zero Progress to monitor the progress of downloads
/uri/0install/zero-install.sourceforge.net/apps/ZeroProgress/AppRun &

and find many programs like so
/uri/0install/rox.sourceforge.net/rox /uri/0install/zero-install.sourceforge.net/links


For additional information the Zero Install homepage is your friend:
http://zero-install.sourceforge.net/

Now all that is left to do is to write to the developers of your favourite
software and ask them to start using/supporting Zero Install...

CHANGELOG:
[2004-6-18]
* Initial hint.