Ubuntu 18.04 and Ambari Wizard Error Cannot register host with not supported os type

[#1]

Hello,

I wanted to install HDP with using Ambari but unfortunately at the "Confirm hosts" step I could not register my nodes due to following exception:

Exception: Registration failed due to: Cannot register host with not supported os type, hostname=xxxx, serverOsType=ubuntu18, agentOsType=ubuntu18

I know that the official support matrix guarantees only support for Ubuntu 16.04. But it is still possible to set up for 18.04?

Or is there a workaround?

[#2]

@Andreas Kühnert

Ubuntu 18 is not in the Supported Operating System list of Ambari hence there are no mapping of ubuntu18 yet:

https://supportmatrix.hortonworks.com/

.

This is because the "os_family.json" file does not include the version "18" for "ubuntu".
https://github.com/apache/ambari/blob/release-2.7.1/ambari-common/src/main/python/ambari_commons/res...


Following are the most probable paths where you can find this file on Ambari Server Host as well as on Ambari Agent hosts.

/usr/lib/ambari-server/lib/ambari_commons/resources/os_family.json
AND
/usr/lib/ambari-agent/lib/ambari_commons/resources/os_family.json
/usr/lib/python2.6/site-packages/resource_monitoring/ambari_commons/resources/os_family.json
/var/lib/ambari-agent/tmp/ambari_commons/resources/os_family.json

.

[#3]

@Andreas Kühnert

A Similar JIRA request was raised recently to ad support for "Amazon2017" and following is the way it was implemented: AMBARI-20716

https://github.com/apache/ambari/commit/5377e66448aea708d42751704e69bb15418c5a3e#diff-f07d6f1d952e21...