Getting Started with Red Hat Enterprise Linux for Real Time

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Red Hat Enterprise Linux for Real Time is a real-time computing platform for deadline-oriented applications and time-sensitive workloads. This guide explains how to get started with Red Hat Enterprise Linux for Real Time.
Red Hat Enterprise Linux for Real Time is a real-time computing platform for deadline-oriented applications and time-sensitive workloads. This guide explains how to get started with Red Hat Enterprise Linux for Real Time. System requirements: Red Hat Enterprise Linux 7.1 installed on an AMD64 or Intel 64 system. Make sure you have registered your system. Then follow these steps:

Step 1

Enable the Red Hat Enterprise Linux for Real Time repository:
# subscription-manager repos --enable rhel-7-server-rt-rpms

Step 2

Install the Red Hat Enterprise Linux for Real Time package group:
# yum groupinstall RT

Step 3

List available kernels:
# grep vmlinuz /boot/grub2/grub.cfg
linux16 /vmlinuz-3.10.0-229.4.2.el7.x86_64 ...
linux16 /vmlinuz-3.10.0-229.4.2.el7.x86_64 ...
linux16 /vmlinuz-3.10.0-229.4.2.rt56.141.6.el7_1.x86_64 ...
linux16 /vmlinuz-3.10.0-229.4.2.rt56.141.6.el7_1.x86_64 ...

Step 4

Tell bootloader to use the RT kernel. Starting from 0, to choose the third kernel in the list above use 2:
# grub2-set-default 2

Step 5

Reboot the computer.

Step 6

Verify that your system is running the Red Hat Enterprise Linux for Real Time kernel by running the uname command:
# uname -v ; uname -r
#1 SMP PREEMPT RT Mon Apr 27 16:12:34 EDT 2015
3.10.0-229.4.2.rt56.141.6.el7_1.x86_64

Step 7

Check the output for the rt designation. If it appears, the Red Hat Enterprise Linux for Real Time kernel is running you are ready to start configuring your Red Hat Enterprise Linux for Real Time system. In the following documents, you can learn about:

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