I\'m running RVM 1.1.6 on Ubuntu 8.04 and all of a sudden I can\'t update to the latest version anymore.
~ rvm get head
Original installed RVM version:
rvm
I ran into the same issue and it seemed that the git version was missing curl and expat support. I could resolve it by compiling the git version myself.
sudo apt-get remove git-core
wget http://kernel.org/pub/software/scm/git/git-1.7.3.5.tar.gz
sudo apt-get build-dep git-core
tar xvzf git-1.7.3.5.tar.gz
cd git-1.7.3.5/
./configure --with-curl --with-expat
make
sudo make install