As XenServer 6.5 is based on CentOS 5, we can use the corresponding EPEL repositories to install Git as follow:
yum repolist
wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-5.noarch.rpm
rpm -Uvh epel-release-latest-5.noarch.rpm
- this will install git, perl-Error, perl-Git and perl-TermReadKey
yum install git
- now disable / remove the EPEL repository again:
rpm -ev epel-release
rm -f epel-release-latest-5.noarch.rpm
yum repolist