Here’s the short version, what I did on F14.

yum -y groupinstall  "Development Tools"
git clone git://git.fedorahosted.org/freeipa.git
cd freeipa
yum install -y `grep BuildRequires: ipa.spec.in `
make all rpms
yum localinstall --nogpgcheck -y dist/rpms/*rpm
yum -y install bind-dyndb-ldap
#Dogtag is broken on F14.  There is a workaround.
ln -s /usr/share/java/xalan-j2-serializer.jar /usr/share/tomcat5/common/lib/xalan-j2-serializer.jar 
ipa-server-install -U -r ` hostname  | tr '[:lower:]' '[:upper:]'`  -p freeipa4all  -a freeipa4all -u admin --setup-dns --no-forwarders