The bug

I have a self hosted runner and I have set the ImageOS to be ubuntu24. However, when I do this, I get the following error.

Error: Tried to map a target OS from env. variable 'ImageOS' (got ubuntu24), but failed. If you're using a self-hosted runner, you should set 'env': 'ImageOS': ... to one of the following: ['ubuntu18', 'ubuntu20', 'ubuntu22', 'win19', 'win22']
Error: Error: failed to run script step: command terminated with non-zero exit code: error executing command [sh -e /__w/_temp/6129ca00-2288-11ef-945a-71eb091f6d2b.sh], exit code 1
Error: Process completed with exit code 1.
Error: Executing the custom container implementation failed. Please contact your self hosted runner administrator.

The readme says that ubuntu24 should be a valid value.

Software versions

A list of software versions where the bug is apparent, as detailed as possible:

• setup-beam: @v1 (I don't know how to see the exact version that was pulled)

How to replicate

An ordered list of steps to replicate the bug:

1. Use the this action on a self hosted runner
2. Set the ImageOS to be ubuntu24
3. See the above error

Expected behaviour

Since using ubuntu24 is documented in your README, I would expect it to work.

Additional context

Any other context about the bug.