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Trouble installing CDH 6.3.1 after uninstalling CDH 5.16.2 on Ubuntu 16.04

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Trouble installing CDH 6.3.1 after uninstalling CDH 5.16.2 on Ubuntu 16.04

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I have a Dell 7920 server with Ubuntu 16.04 installed. I have OpenJDK 8 installed. Earlier in the year, I had installed CDH 5.16.2 in anticipation of carrying out a project, which was subsequently carried out on a separate platform (management decision) Last week I installed CUDA and tested it to ensure that it was working. On running nvcc -V, I get the following: Built on Sun_Jul_28_19:07:16_PDT_2019 Cuda compilation tools, release 10.1, V10.1.243 I had been using CDH 5.16.2 the instance for training myself up and have decided to upgrade it. Through my investigations, I observed through the documentation that the amount of work required to upgrade from CDH 5.16.2 to CDH 6.3.1 was far more than a mere uninstalling of CDH 5.16.2 and subsequent installation of 6.3.1. Therefore I proceeded with the uninstallation of 5.16.2 as per https://docs.cloudera.com/documentation/enterprise/5-16-x/topics/cm_ig_uninstall_cm.html Upon completion of uninstallation, I found that many CDH 5.16 files still existed in my system, especially in /etc/apt/sources.list.d, which I removed and stored elsewhere. I then carried out the following Step 1 and 2 (already done since I have OpenJDK in the installation process https://docs.cloudera.com/documentation/enterprise/latest/topics/configure_cm_repo.html#cm_repo 1. Download the cloudera.list file for your OS version to the /etc/apt/sources.list.d/ directory on the Cloudera Manager Server host. You can find the URL in the Repo File column in the Cloudera Manager 6 Version and Download Information table for the Cloudera Manager version you want to install. 2. Import the repository signing GPG key: (I heard removed the previous key prior to this step) wget https://archive.cloudera.com/cm6/6.3.0/ubuntu1604/apt/archive.key sudo apt-key add archive.key Update your system package index by running: sudo apt-get update I then carried executed the commands in Step 3 https://docs.cloudera.com/documentation/enterprise/latest/topics/install_cm_server.html sudo apt-get install cloudera-manager-daemons cloudera-manager-agent cloudera-manager-server for which I receive the following messages: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: cloudera-manager-server-db-2 : Depends: cloudera-manager-server (= 5.16.1-1.cm5161.p0.1~xenial-cm5) but 6.3.1~1466458.ubuntu1604 is to be installed nvidia-cuda-toolkit : Depends: nvidia-cuda-dev (= 7.5.18-0ubuntu1) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). I am now a little lost as to how I should proceed. Please advice. Thank you

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