- How do I determine RHEL (Red Hat Enterprise Linux) version?
- How do I determine RHEL version?
- How to check RHEL / Redhat version
- How to confirm RedHat Enterprise Linux version using hostnamectl
- Other commands to find out RHEL version
- A sample session from my RHEL 7 server
- Checking RHEL version and store in a shell variable
- Red Hat Customer Portal
- Log in to Your Red Hat Account
- Red Hat Account
- Customer Portal
- Select Your Language
- Red Hat Enterprise Linux Release Dates
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 4
- Red Hat Enterprise Linux 3
- Red Hat Enterprise Linux 2.1
- How to Check Linux Red Hat (RHEL) Version Installed On Your System
- 5 Ways to Find Version of Red Hat Linux (RHEL)
- Option 1: Use hostnamectl
- Option 2: Find Version in /etc/redhat-release File
- Option 3: Check Query Release Package with RPM
- Option 4: Finding Red Hat Version and Release Using /etc/issue File
- Option 5: Check Common Platform Enumeration File
- Check Other Release Files
- Discussion on Red Hat Versions
How do I determine RHEL (Red Hat Enterprise Linux) version?
I am a new Linux sysadmin and user. I think we have five RHEL (Red Hat Enterprise Linux) Dell servers in our office. How do I determine the RHEL version? How do I find out RHEL kernel version from the ssh session created by putty.exe?
Introduction – Red Hat Enterprise Linux (RHEL) operating system created for enterprise customers. It is prevalent among business users, developers, and sysadmin due to long-term support, stability, and high-quality open-source software. This page shows how to find out the RHEL version from the command line.
| Tutorial details | |
|---|---|
| Difficulty level | Easy |
| Root privileges | No |
| Requirements | RHEL |
| Est. reading time | 2 minutes |
How do I determine RHEL version?
To display the Red Hat Enterprise Linux version use any one of the following command/methods:
- To determine RHEL version, type:
cat /etc/redhat-release - Execute command to find RHEL version:
more /etc/issue - Show RHEL version using command line, run:
less /etc/os-release - Another option to get Red Hat Enterprise Linux version:
less /etc/system-release-cpe - RHEL 7.x or above user can use the hostnamectl command to get RHEL version
Let us see all commands in details for finding and displaying Red Hat Enterprise Linux (RHEL) version on screen.
How to check RHEL / Redhat version
Type the following cat command:
cat /etc/redhat-release
Sample outputs:
To display the RHEL kernel version, type:
uname -r
uname -mrs
How to confirm RedHat Enterprise Linux version using hostnamectl
Simply run the following hostnamectl command:
hostnamectl
Sample outputs:
Other commands to find out RHEL version
One can use the rpm command:
rpm —query redhat-release-server
Sample outputs:
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Another option is to run lsb_release command. However, you need to install a package named redhat-lsb-core using the yum command as follows
sudo yum install redhat-lsb-core
## now get RHEL version ##
lsb_release -d
lsb_release -a
A sample session from my RHEL 7 server
Let us run all commands on RHEL version 7:
Finding or determining RHEL server version using command line
Checking RHEL version and store in a shell variable
The syntax is as following for the grep command:
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Red Hat Enterprise Linux Release Dates
The tables below list the major and minor Red Hat Enterprise Linux updates, their release dates, and the kernel versions that shipped with them.
Red Hat does not generally disclose future release schedules.
Refer to the Red Hat Enterprise Linux Life Cycle Policy for details on the life cycle of Red Hat Enterprise Linux releases.
To find your Red Hat Enterprise Linux release please:
To find your kernel version please:
Red Hat Enterprise Linux 8
| Release | General Availability Date | redhat-release Errata Date* | Kernel Version |
|---|---|---|---|
| RHEL 8.4 | 2021-05-18 | 2021-05-18 RHSA-2021:1578 | 4.18.0-305 |
| RHEL 8.3 | 2020-11-03 | 2020-11-03 RHBA-2020:4495 | 4.18.0-240 |
| RHEL 8.2 | 2020-04-28 | 2020-04-28 RHBA-2020:1758 | 4.18.0-193 |
| RHEL 8.1 | 2019-11-05 | 2019-11-05 RHBA-2019:3543 | 4.18.0-147 |
| RHEL 8 | 2019-05-07 | — | 4.18.0-80 |
Codename: Ootpa (is based on Fedora 28, upstream Linux kernel 4.18, systemd 239, and GNOME 3.28.)
Red Hat Enterprise Linux 7
| Release | General Availability Date | redhat-release Errata Date* | Kernel Version |
|---|---|---|---|
| RHEL 7.9 | 2020-09-29 | 2020-09-29 RHBA-2020:3849 | 3.10.0-1160 |
| RHEL 7.8 | 2020-03-31 | 2020-03-31 RHBA-2020:1033 | 3.10.0-1127 |
| RHEL 7.7 | 2019-08-06 | 2019-08-06 RHBA-2019:2351 | 3.10.0-1062 |
| RHEL 7.6 | 2018-10-30 | 2018-10-30 RHBA-2018:3014 | 3.10.0-957 |
| RHEL 7.5 | 2018-04-10 | 2018-04-10 RHEA-2018:0700 | 3.10.0-862 |
| RHEL 7.4 | 2017-07-31 | 2017-07-31 RHBA-2017:1850 | 3.10.0-693 |
| RHEL 7.3 | 2016-11-03 | 2016-11-03 RHEA-2016-2544 | 3.10.0-514 |
| RHEL 7.2 | 2015-11-19 | 2015-11-19 RHEA-2015:2461 | 3.10.0-327 |
| RHEL 7.1 | 2015-03-05 | 2015-03-05 RHEA-2015:0524 | 3.10.0-229 |
| RHEL 7.0 GA | 2014-06-09 | — | 3.10.0-123 |
| RHEL 7.0 Beta | 2013-12-11 | — | 3.10.0-54.0.1 |
Codename: Maipo (based on a mix of Fedora 19, Fedora 20, and several modifications)
Red Hat Enterprise Linux 6
| Release | General Availability Date | redhat-release Errata Date* | Kernel Version |
|---|---|---|---|
| RHEL 6.10 | 2018-06-19 | 2018-06-19 RHBA-2018:1856 | 2.6.32-754 |
| RHEL 6.9 | 2017-03-21 | 2017-03-21 RHSA-2017:0817 | 2.6.32-696 |
| RHEL 6.8 | 2016-05-10 | 2016-05-10 RHSA-2016:0855-1 | 2.6.32-642 |
| RHEL 6.7 | 2015-07-22 | 2015-07-22 RHEA-2015:1423 | 2.6.32-573 |
| RHEL 6.6 | 2014-10-14 | 2014-10-13 RHEA-2014:1608 | 2.6.32-504 |
| RHEL 6.5 | 2013-11-21 | 2013-11-20 RHSA-2013:1645-2 | 2.6.32-431 |
| RHEL 6.4 | 2013-02-21 | 2013-02-21 RHSA-2013-0496 | 2.6.32-358 |
| RHEL 6.3 | 2012-06-20 | 2012-06-19 RHSA-2012-0862 | 2.6.32-279 |
| RHEL 6.2 | 2011-12-06 | 2011-12-06 RHEA-2011:1743 | 2.6.32-220 |
| RHEL 6.1 | 2011-05-19 | 2011-05-19 RHEA-2011:0540 | 2.6.32-131.0.15 |
| RHEL 6.0 | 2010-11-09 | — | 2.6.32-71 |
Codename: Santiago (based on a mix of Fedora 12, Fedora 13, and several modifications)
Red Hat Enterprise Linux 5
| Release | General Availability Date | redhat-release Errata Date* | Kernel Version |
|---|---|---|---|
| RHEL 5.11 | 2014-09-16 | 2014-09-16 RHEA-2014-1238 | 2.6.18-398 |
| RHEL 5.10 | 2013-10-01 | 2013-09-30 RHEA-2013-1311 | 2.6.18-371 |
| RHEL 5.9 | 2013-01-07 | 2013-01-07 RHEA-2013-0021 | 2.6.18-348 |
| RHEL 5.8 | 2012-02-20 | 2012-02-20 RHEA-2012:0315 | 2.6.18-308 |
| RHEL 5.7 | 2011-07-21 | 2011-07-20 RHEA-2011:0977 | 2.6.18-274 |
| RHEL 5.6 | 2011-01-13 | 2011-01-12 RHEA-2011:0020 | 2.6.18-238 |
| RHEL 5.5 | 2010-03-30 | 2010-03-30 RHEA-2010:0207 | 2.6.18-194 |
| RHEL 5.4 | 2009-09-02 | 2009-09-02 RHEA-2009:1400 | 2.6.18-164 |
| RHEL 5.3 | 2009-01-20 | 2009-01-20 RHEA-2009:0133 | 2.6.18-128 |
| RHEL 5.2 | 2008-05-21 | 2008-05-20 RHEA-2008:0436 | 2.6.18-92 |
| RHEL 5. 1 | 2007-11-07 | 2007-11-07 RHEA-2007:0854 | 2.6.18-53 |
| RHEL 5.0 | 2007-03-15 | — | 2.6.18-8 |
Codename: Tikanga (based on Fedora Core 6)
Red Hat Enterprise Linux 4
| Release/Update | General Availability Date | redhat-release Errata Date* | Kernel Version |
|---|---|---|---|
| RHEL 4 Update 9 | 2011-02-16 | 2011-02-16 RHEA-2011:0251 | 2.6.9-100 |
| RHEL 4 Update 8 | 2009-05-19 | 2009-05-18 RHEA-2009:1002 | 2.6.9-89 |
| RHEL 4 Update 7 | 2008-07-29 | 2008-07-24 RHEA-2008:0769 | 2.6.9-78 |
| RHEL 4 Update 6 | 2007-11-15 | 2007-11-15 RHBA-2007:0897 | 2.6.9-67 |
| RHEL 4 Update 5 | 2007-05-01 | 2007-04-27 RHBA-2007:0196 | 2.6.9-55 |
| RHEL 4 Update 4 | 2006-08-10 | 2006-08-10 RHBA-2006:0601 | 2.6.9-42 |
| RHEL 4 Update 3 | 2006-03-12 | 2006-03-07 RHBA-2006:0149 | 2.6.9-34 |
| RHEL 4 Update 2 | 2005-10-05 | 2005-10-05 RHEA-2005:786 | 2.6.9-22 |
| RHEL 4 Update 1 | 2005-06-08 | 2005-06-08 RHEA-2005:318 | 2.6.9-11 |
| RHEL 4 GA | 2005-02-15 | — | 2.6.9-5 |
Codename: Nahant (based on Fedora Core 3)
Red Hat Enterprise Linux 3
| Release/Update | General Availability Date | Kernel Version |
|---|---|---|
| RHEL 3 Update 9 | 2007-06-20 | 2.4.21-50 |
| RHEL 3 Update 8 | 2006-07-20 | 2.4.21-47 |
| RHEL 3 Update 7 | 2006-03-17 | 2.4.21-40 |
| RHEL 3 Update 6 | 2005-09-28 | 2.4.21-37 |
| RHEL 3 Update 5 | 2005-05-18 | 2.4.21-32 |
| RHEL 3 Update 4 | 2004-12-12 | 2.4.21-27 |
| RHEL 3 Update 3 | 2004-09-03 | 2.4.21-20 |
| RHEL 3 Update 2 | 2004-05-12 | 2.4.21-15 |
| RHEL 3 Update 1 | 2004-01-16 | 2.4.21-9 |
| RHEL 3 GA | 2003-10-22 | 2.4.21-4 |
Codename: Taroon (based on Red Hat Linux 9)
Red Hat Enterprise Linux 2.1
| Release/Update | General Availability Date | Kernel Version |
|---|---|---|
| RHEL 2.1 Update 7 | 2005-04-28 | — |
| RHEL 2.1 Update 6 | 2004-12-13 | 2.4.9-e.57 |
| RHEL 2.1 Update 5 | 2004-08-18 | 2.4.9-e.49 |
| RHEL 2.1 Update 4 | 2004-04-21 | 2.4.9-e.40 |
| RHEL 2.1 Update 3 | 2004-12-19 | 2.4.9-e.34 |
| RHEL 2.1 Update 2 | 2003-03-29 | 2.4.9-e.24 |
| RHEL 2.1 Update 1 | 2003-02-14 | 2.4.9-e.12 |
| RHEL 2.1 GA | 2002-03-23 | 2.4.9-e.3 |
Codename: Pensacola (AS) / Panama (ES) (based on Red Hat Linux 7.2)
* Helpful when cloning channels in Satellite for a minor version plus all errata prior to the next minor release using spacewalk-clone-by-date or the webUI.
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How to Check Linux Red Hat (RHEL) Version Installed On Your System
Home » SysAdmin » How to Check Linux Red Hat (RHEL) Version Installed On Your System
Red Hat is a popular and influential fork of the Linux operating system. It has been around since the mid-1990s and has earned a reputation for being stable, reliable, and regularly updated. There are many Linux operating systems based on Red Hat architecture, such as RHEL, CentOS and Fedora.
Finding your Red Hat version is straightforward. This tutorial shows you five ways to check the version of Red Hat Enterprise Linux (RHEL).
- A system running RHEL, CentOS, or another Red-Hat-based Linux distribution
- A terminal window/command line (Ctrl-Alt-F2)
5 Ways to Find Version of Red Hat Linux (RHEL)
Option 1: Use hostnamectl
The hostnamectl command is usually used to track the way your system appears on a network. However, it also includes information such as the OS and version, making it a quick and handy way to check these specifics.
Open a terminal window and enter the following:
The fields you are interested in are:
- Operating System: This tells you which Linux fork you are using, and which major release.
- Kernel: This is the version of the Linux kernel your operating system is using.
- Architecture: This tells you whether you are running a 32-bit or 64-bit operating system, which is essential when choosing a software package to install.
Option 2: Find Version in /etc/redhat-release File
Red Hat-based distros contain release files located in the /etc/redhat-release directory.
For example, os-release, system-release, and redhat-release.
To check each file for your Red Hat OS version use the command:
In the image above, you can see that this system is using the version CentOS 7.6.1810.
Option 3: Check Query Release Package with RPM
Alternatively, you can use the rpm command to query Red Hat’s release package.
Enter the following command:
OR
Specifically, use the command that is appropriate for your version of Linux (RHEL or CentOS distribution).
Expect more details than when using hostnamectl .
Option 4: Finding Red Hat Version and Release Using /etc/issue File
You can check the Red Hat version within the /etc/issue file.
Use the command:
Option 5: Check Common Platform Enumeration File
Check the CPE file for your Red Hat version by entering:
The system should return a full name and version of your operating system.
Check Other Release Files
Your Linux operating system keeps a set of release files in the /etc/ directory.
List the file names of release versions by typing the following command:
Each of the entries listed holds information about your Red Hat version.
Use the cat (concatenate) command to list the contents of the files:
You can substitute the names of the files displayed on your system for the redhat-release file in the example above.
Discussion on Red Hat Versions
At the moment, RHEL (Red Hat Enterprise Linux), and CentOS are two of the most popular versions of Red Hat Linux.
The Red Hat version is different from the Linux Kernel version. The Linux Kernel is like the central brain of the Linux operating system and can be updated independently of the operating system. The Operating System version is the release version number of the whole OS package.
You may see a Red Hat version number like Red Hat 7.3. The number 7 refers to a major release, much like “Windows 7” and “Windows 10.” The number following the dot refers to the level of patches and minor updates. So Red Hat 7.3 is Red Hat version 7, patched and updated to 7.3.
After reading this article, you will know how to check or find your Red Hat operating system version in a number of ways.
Finally, for more information about the Red Hat family of Linux, please see the official Red Hat documentation.
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