Hi. I am at the install stage for my HDP2.6 cluster, for Ubuntu14 and Ambari 2.5.0.3. My master node fails with: E: Unable to locate package accumulo-2-4-2-0-258 My s1 node fails (warning): E: Unable to locate package hdp-select 2017-05-11 19:34:05,196 - Failed to install package hdp-select. Executing '/usr/bin/apt-get update -qq' 2017-05-11 19:34:47,796 - Retrying to install package hdp-select after 30 seconds Command aborted. Reason: 'Server considered task failed and automatically aborted it' My s2 node fails (warning): 2017-05-11 19:33:59,355 - Installing package hadoop-2-6-0-3-8-client ('/usr/bin/apt-get -q -o Dpkg::Options::=--force-confdef --allow-unauthenticated --assume-yes install hadoop-2-6-0-3-8-client') Command aborted. Reason: 'Server considered task failed and automatically aborted it' My s2 node fails (warning): 2017-05-11 19:34:06,067 - Installing package accumulo-2-6-0-3-8 ('/usr/bin/apt-get -q -o Dpkg::Options::=--force-confdef --allow-unauthenticated --assume-yes install accumulo-2-6-0-3-8') Command aborted. Reason: 'Server considered task failed and automatically aborted it' These are all the first install tasks. Are these related? How might I fix them? TIA! UPDATE: I am now getting An internal system exception occurred: Base url http://public-repo-1.hortonworks.com/HDP/sles12/2.x/updates/2.6.0.3 is already defined for another repository version. Setting up base urls that contain the same versions of components will cause stack upgrade to fail. error. I have not changed anything since my original post except install tree. ... View more