[Linux]

Preparing Red Hat Enterprise Linux 7 for installation

You must complete additional steps to prepare a Red Hat Enterprise Linux Version 7 system for a WebSphere® Application Server installation.

Before you begin

Complete all steps in Preparing Linux systems for installation. Those steps are common to installing WebSphere Application Server on any Linux system.

About this task

After you complete the common steps that are required to install any Linux system, you must also complete extra system-specific steps that are required for Red Hat Enterprise Linux Version 7.

Verify that the prerequisite packages are installed. A Linux package registration limitation prevents the prerequisites checker program from examining prerequisite packages on Linux systems. See Installing and verifying Linux packages for more information.

Consider the following points if you have enabled Security-Enhanced Linux (SELinux) on your Red Hat Enterprise Linux Version 7 operating system:
  • If SELinux is enabled and enforced while you are installing the product from the disk, you must mount the disk with the following option:
    -o context=system_u:object_r:textrel_shlib_t
  • If you enable SELinux after installing the product while SELinux is disabled, the file labels are reset when the system is rebooted. In this scenario, you must run the relabel_linux.sh script that is located in the app_server_root/properties/install/script/ directory to relabel the product runtime files. Running the relabel_linux.sh command is not necessary if you made security mode changes with the command setenforce, which does not require a system reboot.

Procedure

  1. [Updated in August 2016]On all hardware platforms, install all required packages and their dependencies by running the following yum command:
    yum install gtk2 libXtst xorg-x11-fonts-Type1 psmisc

    The gtk2, libXtst, and xorg-x11-fonts-Type1 packages are required for graphical IBM Installation Manager and Profile Management tool support. The psmisc package provides support for basic installation and profile creation.

    [Updated in August 2016]
  2. On POWER systems, ensure that the kernel level is set to a minimum of 3.10.0-123.6.3.el7. Run the following command:
    uname -r
  3. For POWER® Little Endian (LE), review the following platform-specific limitations:
    • Edge Caching Proxy is not supported on this architecture.
    • Load Balancer for IPv4 and IPv6 components Content Based Routing (CBR) and Site Selector are not supported.
    • Load Balancer for IPv4 and IPv6 requires the IBM® Advanced Toolchain 7.1 runtime packages. For more information, see the IBM Advance Toolchain for PowerLinux™ documentation.

Results

If you do not install all of the required packages, the installation does not complete correctly. Error messages indicate missing libraries, the inability to load graphical interfaces, or other errors that occur during the installation.

What to do next

After verifying prerequisites, verifying the product disk, and setting your installation goals, you can start installing WebSphere Application Server by choosing one of the following installation procedures:

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Timestamp icon Last updated: March 5, 2017 23:55
File name: tins_linuxsetup_rhel7.html