Started testing on a VM, running my old script bit by bit and watching the results. I've got as far as a working Jinks server, and one or two builds work, but there will have to be many changes. These are my notes so far:

First time building Jenkins with Precise, I'm running only what I think I need to run, and keeping notes.

#START UNTESTED BIT -- TEST LATER ON DEFAULT INSTALL.#
#First do updates.
echo "Doing system updates before starting on anything else."
apt-get update
apt-get upgrade

#Now add the repositories we want.
echo "Backing up repository list."
cp /etc/apt/sources.list /etc/apt/sources.list.bak

#Uncomment partner repos.
echo "Uncommenting partner repositories on sources list, so we can get Sun Java."
sed -i -re '/partner/ s/^#//' /etc/apt/sources.list
#FINISH UNTESTED BIT#


#First Jenkins
echo "Adding Jenkins repository."
wget -q -O - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | apt-key add -
echo "deb http://pkg.jenkins-ci.org/debian binary/" > /etc/apt/sources.list.d/jenkins.list

#OK

#Next TEI.
echo "Adding TEI Debian repository."
     gpg --keyserver wwwkeys.uk.pgp.net --recv-keys FEA4973F86A9A497
#NOT OK: HAD TO USE:
#Next TEI.
gpg --keyserver wwwkeys.pgp.net --recv-keys FEA4973F86A9A497
echo "deb http://tei.oucs.ox.ac.uk/teideb/binary ./" > /etc/apt/sources.list.d/tei.list

#OK

#Now we can start installing packages.
echo "Updating for new repositories."
apt-get update

#OK

echo "Installing core packages we need."
apt-get install openssh-server libxml2 libxml2-utils devscripts xsltproc debhelper subversion trang &&
echo "Installing curl, required for some tei building stuff."
apt-get install curl &&

#OK. curl already installed.

#TEI packages
echo "Installing TEI packages."
	apt-get install psgml xmlstarlet debiandoc-sgml linuxdoc-sgml jing jing-trang-doc libjing-java rnv texlive-xetex &&
#NOT OK: rnv no longer in repos (but is in TEI, so no worries); linuxdoc-sgml should be linuxdoc-tools. HAD TO USE:

apt-get install psgml xmlstarlet debiandoc-sgml linuxdoc-tools jing jing-trang-doc libjing-java texlive-xetex

	apt-get install trang-java tei-p5-doc tei-p5-database tei-p5-source tei-schema saxon nxml-mode-tei tei-p5-xsl tei-p5-xsl2 tei-p5-xslprofiles tei-roma onvdl tei-oxygen zip &&

#NOT OK: nxml-mode-tei has no installation candidate. HAD TO USE:
apt-get install trang-java tei-p5-doc tei-p5-database tei-p5-source tei-schema saxon tei-p5-xsl tei-p5-xsl2 tei-p5-xslprofiles tei-roma onvdl tei-oxygen zip &&

#Setting up configuration for oXygen
mkdir /root/.com.oxygenxml
chmod a+x /root/.com.oxygenxml
mkdir /root/.java
chmod a+x /root/.java
echo "Don't forget to put your licensekey.txt file in the folder /usr/share/oxygen so that oXygen is registered."

#OK

#Various fonts and the like.
echo "Installing fonts we need."
apt-get install ttf-dejavu msttcorefonts ttf-arphic-ukai ttf-arphic-uming ttf-baekmuk ttf-junicode ttf-kochi-gothic ttf-kochi-mincho
echo "The Han Nom font is not available in repositories, so we have to download it from SourceForge."
cd /usr/share/fonts/truetype
mkdir hannom
cd hannom
wget -O hannom.zip http://downloads.sourceforge.net/project/vietunicode/hannom/hannom%20v2005/hannomH.zip
unzip hannom.zip
find . -iname "*.ttf" | rename 's/\ /_/g'
rm hannom.zip
fc-cache -f -v

#OK

#Configuration for Jenkins
echo "Starting configuration of Jenkins."
echo "Getting the Hudson log parsing rules from TEI SVN."
cd /var/lib/jenkins
svn export https://tei.svn.sourceforge.net/svnroot/tei/trunk/P5/Utilities/hudson-log-parse-rules
chown jenkins hudson-log-parse-rules
echo "Getting all the job data from TEI SVN."
#Don't bring down the config.xml file for now; that contains security settings specific to 
#Sebastian's setup, and will prevent anyone from logging in. We leave the server unsecured,
#and make it up to the user to secure it.
#svn export https://tei.svn.sourceforge.net/svnroot/tei/trunk/Documents/Editing/Jenkins/config.xml
#chown jenkins config.xml
svn export --force https://tei.svn.sourceforge.net/svnroot/tei/trunk/Documents/Editing/Jenkins/jobs/ jobs
chown -R jenkins jobs
echo "Installing Jenkins plugins."
cd plugins
wget --no-check-certificate http://updates.jenkins-ci.org/latest/copyartifact.hpi
chown jenkins copyartifact.hpi
wget --no-check-certificate http://updates.jenkins-ci.org/latest/emotional-hudson.hpi
chown jenkins emotional-hudson.hpi
wget --no-check-certificate http://updates.jenkins-ci.org/latest/greenballs.hpi
chown jenkins greenballs.hpi
wget --no-check-certificate http://updates.jenkins-ci.org/latest/jobConfigHistory.hpi
chown jenkins jobConfigHistory.hpi
wget --no-check-certificate http://updates.jenkins-ci.org/latest/plot.hpi
chown jenkins plot.hpi
wget --no-check-certificate http://updates.jenkins-ci.org/latest/log-parser.hpi
chown jenkins log-parser.hpi
wget --no-check-certificate http://updates.jenkins-ci.org/latest/scp.hpi
chown jenkins scp.hpi
wget --no-check-certificate http://updates.jenkins-ci.org/latest/WebSVN2.hpi
chown jenkins WebSVN2.hpi

echo "Restarting Jenkins server, so that it finds and initializes all the new plugins."
/etc/init.d/jenkins restart

#OK


PROBLEMS AFTER STARTUP:

1. Builds fail because rnv is not installed. Have to get it from SourceForge:

cd ~
apt-get install libexpat-dev
wget http://downloads.sourceforge.net/project/rnv/Sources/1.7.10/rnv-1.7.10.zip
unzip rnv-1.7.10.zip
cd rnv-1.7.10
./configure
make
make install

2. NON-FATAL, but investigate: in Stylesheets:
	Unable to locate tools.jar. Expected to find it in /usr/lib/jvm/java-6-openjdk-amd64/lib/tools.jar

3. FATAL:

BUILD Build for P5, XSLT 2.0
test -d release/p5 || mkdir -p release/p5/xml/tei/stylesheet/
for i in  bibtex common2 docx dtd docbook epub epub3 fo2 html html5 latex2 nlm odds2 odt profiles/default rdf relaxng rnc slides tbx tite tools txt xhtml2 xsd ; do \
		tar cf - --exclude .svn $i | (cd release/p5/xml/tei/stylesheet; tar xf - ); \
	done
(cd odt;  mkdir TEIP5; saxon -o:TEIP5/teitoodt.xsl -s:teitoodt.xsl expandxsl.xsl ; cp odttotei.xsl TEIP5.ott teilite.dtd TEIP5; jar cf ../teioo.jar TEIP5 TypeDetection.xcu ; rm -rf TEIP5)

/bin/sh: 1: jar: not found
mkdir -p /var/lib/jenkins/jobs/Stylesheets/workspace/debian-tei-p5-xsl2/debian/tei-p5-xsl2/usr/share/xml/tei/stylesheet
cp catalog.xml /var/lib/jenkins/jobs/Stylesheets/workspace/debian-tei-p5-xsl2/debian/tei-p5-xsl2/usr/share/xml/tei/stylesheet
cp teioo.jar /var/lib/jenkins/jobs/Stylesheets/workspace/debian-tei-p5-xsl2/debian/tei-p5-xsl2/usr/share/xml/tei/stylesheet
cp: cannot stat `teioo.jar': No such file or directory
make[1]: *** [installp5] Error 1
make[1]: Leaving directory `/var/lib/jenkins/jobs/Stylesheets/workspace'