yum from OBS:Server:2.7 project

For SLE 11 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/OBS:Server:2.7/SLE_11/OBS:Server:2.7.repo
zypper refresh
zypper install yum

For xUbuntu 12.04 run the following:

Keep in mind that the owner of the key may distribute updates, packages and repositories that your system will trust (more information).

echo 'deb http://download.opensuse.org/repositories/OBS:/Server:/2.7/xUbuntu_12.04/ /' | sudo tee /etc/apt/sources.list.d/OBS:Server:2.7.list
curl -fsSL https://download.opensuse.org/repositories/OBS:Server:2.7/xUbuntu_12.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/OBS_Server_2.7.gpg > /dev/null
sudo apt update
sudo apt install yum