hortonworks data platform - Ambari server Installation in Ubuntu 12.04 -

i want install ambari server, following this guide.

when perform step 1

download ambari repository on ambari server host

for ubuntu: cd /etc/apt/sources.list.d sudo wget http://public-repo-1.hortonworks.com/ambari/ubuntu12/1.x/updates/1.7.0/ambari.list

wget -nv http://public-repo-1.hortonworks.com/ambari/ubuntu12/1.x/updates/1.7.0/ambari.list -o /etc/apt/sources.list.d/ambari.list apt-key adv --recv-keys --keyserver keyserver.ubuntu.com b9733a7a07513cad apt-get update

and step 2

install ambari server public ambari repository: ubuntu: sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com b9733a7a07513cad

sudo apt-get update

sudo apt-get install ambari-server

i following error message

e: unable locate package ambari 

i believe mistyped somewhere. have tried follow guide mentioned in description, , installs fine. here command sequence tried:

cd /etc/apt/sources.list.d/ wget http://public-repo-1.hortonworks.com/ambari/ubuntu12/1.x/updates/1.7.0/ambari.list apt-key adv --recv-keys --keyserver keyserver.ubuntu.com b9733a7a07513cad apt-get update apt-get install ambari-server 

hope helps