@Rebecca Rump
During Step1 have you really executed the "mvn rpm:rpm" command to generate the RPM?
mvn -B clean install package rpm:rpm -DnewVersion=2.6.0.0.0 -DskipTests -Dpython.ver="python >= 2.6"
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You will need to have the following packages already installed on your host in order to build Ambari RPMs.
rpmbuild (rpm-build package)
g++ (gcc-c++ package)
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Please refer to the following doc which tells about the detailed development step of Ambari (including the Ambari RPM build).
https://cwiki.apache.org/confluence/display/AMBARI/Ambari+Development
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Once RPM build is completed then you will see the "rpm" files generated. You will need to then run the yum command to install that RPM:
# yum install ambari-serverxxxxxxxxx.rpm
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Here "xxxxxxxxx" will be the version that you have built.
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