Dear all,   please help me solve this problem:   When i tried to install cloudera manager (Path A) on Centos 7.3, I faced to alot of issue. Bellow, I will describe all step I did. Please tell me the wrong step if I have.     1. Install centos 7.3 on a computer with core i7 6700, ram 16gb, and hdd 2tb 2. Change hostname to cloudera1.abc.com.vn 3. change hosts file with information :  192.168.0.1 cloudera-1.abc.com.vn cloudera-1 4. In /etc/sysconfig/network file fill host name : cloudera-1 4. disable SELinux:  SELINUX=disabled ( when i choise permissive, Cloudera alway alert  Disable SELinux before install) 5. Setup proxy for yum.config   6. Some additional step disable IPv6 Add the following to /etc/sysconfig/network: NETWORKING_IPV6=no IPV6INIT=no   disable firewall, do the following systemctl status firewalld.service systemctl stop firewalld.service systemctl disable firewalld.service     some performance setting echo "vm.swappiness = 1" >> /etc/sysctl.conf echo 1 > /proc/sys/vm/swappiness   set ulimits $ echo hdfs - nofile 32768 >> /etc/security/limits.conf $ echo mapred - nofile 32768 >> /etc/security/limits.conf $ echo hbase - nofile 32768 >> /etc/security/limits.conf $ echo hdfs - nproc 32768 >> /etc/security/limits.conf $ echo mapred - nproc 32768 >> /etc/security/limits.conf $ echo hbase - nproc 32768 >> /etc/security/limits.conf   Disable transparent huge page echo never > /sys/kernel/mm/transparent_hugepage/defrag echo never > /sys/kernel/mm/transparent_hugepage/enabled   It all thing I did before setup. Now I will tried to setup with the cloudera guideline, and go to link http://your.server.com:7180   1. At page Parcel, => No Parcels found. I must choise a pack   Versions of CDH that are too new for this version of Cloudera Manager (5.10.0) will not be shown.   Note: No parcels found from the configured repositories. Try adding a Custom Repository under More Options. Otherwise, you may only proceed with Use Packages.   2. At step 5   Cluster Installation   Detecting CDH versions on all hosts No CDH version detected. Check Again    Ensure that all hosts have the same CDH version and then click Check Again to proceed.   No CDH version detected. Check AgainEnsure that all hosts have the same CDH version and then click Check Again to proceed.     What should I do now?     ... View more