Get the Ambari Repository

The first step in upgrading Ambari is obtaining the public repositories.

Check your current directory before you download the new repository file to make sure that there are no previous versions of the ambari.repo file. If you do not, and a previous version exists, the new download is saved with a numeric extension, such as ambari.repo.1. Make sure that the version you copy is the new version.

Get the new Ambari repo and replace the old repository file with the new repository file on all hosts in your cluster.

Select the repository appropriate for your environment:

For RHEL/CentOS/Oracle Linux 7:

wget -nv http://public-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.7.0.0/ambari.repo -O /etc/yum.repos.d/ambari.repo

For Amazon Linux 2:

wget -nv http://public-repo-1.hortonworks.com/ambari/amazonlinux2/2.x/updates/2.7.0.0/ambari.repo -O /etc/yum.repos.d/ambari.repo

For SLES 12:

wget -nv http://public-repo-1.hortonworks.com/ambari/sles12/2.x/updates/2.7.0.0/ambari.repo -O /etc/zypp/repos.d/ambari.repo

For Ubuntu 14:

wget -nv http://public-repo-1.hortonworks.com/ambari/ubuntu14/2.x/updates/2.7.0.0/ambari.list -O /etc/apt/sources.list.d/ambari.list

For Ubuntu 16:

wget -nv http://public-repo-1.hortonworks.com/ambari/ubuntu16/2.x/updates/2.7.0.0/ambari.list -O /etc/apt/sources.list.d/ambari.list

For Debian 9:

wget -nv http://public-repo-1.hortonworks.com/ambari/debian9/2.x/updates/2.7.0.0/ambari.list -O /etc/apt/sources.list.d/ambari.list

For RHEL/CENTOS/Oracle Linux 7 running on IBM Power Systems:

wget -nv http://public-repo-1.hortonworks.com/ambari/centos7-ppc/2.x/updates/2.7.0.0/ambari.repo -O /etc/yum.repos.d/ambari.repo

	Note
	If your cluster does not have access to the Internet, set up a local repository with this data before you continue. See Using a Local Repository in the Apache Ambari Installation for more information.

	Note
	Ambari Server does not automatically turn off iptables. Check that your installation setup does not depend on iptables being disabled. After upgrading the server, you must either disable iptables manually or make sure that you have appropriate ports available on all cluster hosts. For information on disabling your iptables, see Configuring iptables in the Apache Ambari Installation.

If you are upgrading an HDF-only cluster, open the ambari.repo or ambari.list file, depending on your operating system. Remove the following line:
```
#json.url = http://public-repo-1.hortonworks.com/HDP/hdp_urlinfo.json
```
Note
This is not necessary if you are upgrading HDF services on an HDP cluster.

	Note
	This is not necessary if you are upgrading HDF services on an HDP cluster.