Installing CSM 3.4 on Red Hat (Centos / Enterprise) Linux 7 can be fairly straightforward with the information below.
Depending on the modules and software packages that were selected during the Linux installation, the required steps may vary. Here "Server with GUI" has been selected when Red Hat Linux 7 installation process loads a selection of software packages (Software Selection).
Because the installation steps may vary with different packages that were selected during the Linux installation, the purpose of this document is to serve only as an installation reference in addition to the installation guide.
There are two main areas to be addressed:
MySQL - unlike the earlier Red Hat Linux releases, there are extra installation steps in Red Hat Linux 7.
Python - Python has to be built from its source code. Red Hat Linux 7 is shipped with Python 2.7.5. However, CSM Server 3.4 requires Python 2.7.6 and newer because of the following bug in Python 2.7.5: https://bugs.python.org/issue18647
Extra caution has to be taken while building Python from its source code because CSM depends on two Python modules, zlib and ssl. The detail is given as follows:
Red Hat Linux 7 packages by default may not include the development library, zlib-devel. A manual step may be needed to install zlib-devel.
Below is a quick summary of steps to address all the above considerations. The working directory is '/usr/local/src'.
1) Packages that are shipped in RHEL 7.3:
[root@netbrain src]# python –V Python 2.7.5 <=== Python version has to be 2.7.6 and newer [root@netbrain src]# openssl version OpenSSL 1.0.1e-fips 11 Feb 2013 <=== OpenSSL version needs to be 1.0.2 and newer [root@netbrain src]# yum list installed | grep zlib zlib.x86_64 1.2.7-17.el7 @anaconda/7.3 <=== zlib_devel is not installed [root@netbrain src]# yum list installed | grep mysql <=== mysql is not installed
2) Run yum update: [root@netbrain src]# yum update
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