# Need Help Installing Open OnDemand 4.0 on Rocky Linux 8

**URL:** <https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259>\
**Category:** Get Help\
**Created:** [May 20, 2025, 4:43pm UTC](https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259 "2025-05-20T16:43:59Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![lakkala](https://avatars.discourse-cdn.com/v4/letter/l/3ab097/32.png) [@lakkala](https://discourse.openondemand.org/u/lakkala)\
**Post date:** [May 20, 2025, 4:43pm UTC](https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259/1 "2025-05-20T16:43:59Z")

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Dear Team,

I am trying to install Open OnDemand 4.0 on a Rocky Linux 8 system by following the official documentation. However, I faced issues because Ruby 3.3 and Node.js 20 are not available through dnf.  
To work around this, I installed:  
Ruby 3.3 using [GitHub - rbenv/ruby-build: A tool to download, compile, and install Ruby on Unix-like systems.](https://github.com/rbenv/ruby-build)  
Node.js 20 using RPMs from [GitHub - nodesource/distributions: NodeSource Node.js Binary Distributions](https://github.com/nodesource/distributions#fedora-versions)

Even though both are installed and working from the shell, dnf does not recognize them, and I’m unable to install Open OnDemand 4.0. I managed to install version ondemand-3.0.3-1.el8.x86\_64 , but I would like to upgrade to ondemand 4.0

Could you please advise on how to proceed, or if there’s a supported method for installing version 4.0 on Rocky Linux 8 with manually installed Ruby and Node.js?  
Thank you for your assistance.

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**Author:** ![alanc](https://sea1.discourse-cdn.com/flex015/user_avatar/discourse.openondemand.org/alanc/32/2524_2.png) [@alanc](https://discourse.openondemand.org/u/alanc)\
**Post date:** [May 20, 2025, 11:02pm UTC](https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259/2 "2025-05-20T23:02:09Z")

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What specific version of Rocky Linux 8 is on your system? The most recent version is 8.10 and it should work. I suspect you might have a significantly older version?

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**Author:** ![lakkala](https://avatars.discourse-cdn.com/v4/letter/l/3ab097/32.png) [@lakkala](https://discourse.openondemand.org/u/lakkala)\
**Post date:** [May 21, 2025, 4:17pm UTC](https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259/3 "2025-05-21T16:17:37Z")

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We are currently using Rocky Linux 8.6 on our cluster. Could you please let me know how long OnDemand 3.0 will be supported? This information will help us plan the timeline for updating our cluster accordingly.

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**Author:** ![alanc](https://sea1.discourse-cdn.com/flex015/user_avatar/discourse.openondemand.org/alanc/32/2524_2.png) [@alanc](https://discourse.openondemand.org/u/alanc)\
**Post date:** [May 21, 2025, 5:38pm UTC](https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259/4 "2025-05-21T17:38:33Z")

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Rocky Linux version 8.6 was released in May 2022, over 3 years ago and is not actively maintained / supported. There have been 10 subsequent major releases. I’d highly encourage you to upgrade to a more current version, if purely because there are numerous security patches you are missing.

We aren’t generally maintaining Open OnDemand 3.X, but will occasionally backport critical things to it for a while. I can’t provide a specific time frame for how long that will be the case. For example, we plan to release v3.1.12 in the near future with some critical bug fixes.

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**Author:** ![jeff.ohrstrom](https://sea1.discourse-cdn.com/flex015/user_avatar/discourse.openondemand.org/jeff.ohrstrom/32/136_2.png) [@jeff.ohrstrom](https://discourse.openondemand.org/u/jeff.ohrstrom)\
**Post date:** [May 21, 2025, 6:47pm UTC](https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259/5 "2025-05-21T18:47:34Z")

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> [@lakkala](#):
>
> However, I faced issues because Ruby 3.3 and Node.js 20 are not available through dnf.

Are you sure? You have to enable those modules through these commands:

```auto
sudo dnf config-manager --set-enabled powertools
sudo dnf install epel-release
sudo dnf module enable ruby:3.3 nodejs:20

```

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**Author:** ![jeff.ohrstrom](https://sea1.discourse-cdn.com/flex015/user_avatar/discourse.openondemand.org/jeff.ohrstrom/32/136_2.png) [@jeff.ohrstrom](https://discourse.openondemand.org/u/jeff.ohrstrom)\
**Post date:** [May 21, 2025, 6:48pm UTC](https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259/6 "2025-05-21T18:48:13Z")

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Also Hi and Welcome!

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**Author:** ![system](https://us1.discourse-cdn.com/flex015/uploads/osc/original/2X/b/bae70bd0ed39a3ae769c2108155f4cb3e9da8385.png) [@system](https://discourse.openondemand.org/u/system)\
**Post date:** [November 17, 2025, 6:48pm UTC](https://discourse.openondemand.org/t/need-help-installing-open-ondemand-4-0-on-rocky-linux-8/4259/7 "2025-11-17T18:48:28Z")

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