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jmahoney/rbenb ruby-build.md

Created February 12, 2022 02:56
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Updating the versions of ruby that rbenv can see on ubuntu 20.04 LTS
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rbenb ruby-build.md

When you install rbenv via apt on Ubuntu 20.4 it doesn't seem to see all the versions of ruby available

e.g this happened to me:

$ rbenv install 3.1.0
ruby-build: definition not found: 3.1.0

See all available versions with `rbenv install --list'.

If the version you need is missing, try upgrading ruby-build.

To upgrade ruby-build you need to clone it locally

git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build

After that, rbenv will see the versions you want.

If you ever get the error again you will need to do a git pull in the repo in ~/.rbenv/plugins/ruby-build

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