Can't Install 2.3.0-preview1 on Ubuntu 14.04

[todd]

Having issues installing 2.3.0-preview1 on Trusty. Looks like it can't find erb for whatever reason. Any ideas? No issues installing it on my OS X 10.11.x host machine.

vagrant@development:/vagrant$ rbenv install 2.3.0-preview1
Downloading ruby-2.3.0-preview1.tar.gz...
-> https://dqw8nmjcqpjn7.cloudfront.net/dc8f9d48392a2bb226df5f4b4fd2074d81af155cdf3f3799139a6e31e012aefe
Installing ruby-2.3.0-preview1...

BUILD FAILED (Ubuntu 14.04 using ruby-build 20151028-11-gbd22205)

Inspect or clean up the working tree at /tmp/ruby-build.20151122223304.3251
Results logged to /tmp/ruby-build.20151122223304.3251.log

Last 10 log lines:

  Total:      0 (0 undocumented)
    0.00% documented

  Elapsed: 0.0s

generating x86_64-linux-fake.rb
./tool/generic_erb.rb:2:in `require': cannot load such file -- erb (LoadError)
        from ./tool/generic_erb.rb:2:in `<main>'
make: *** [x86_64-linux-fake.rb] Error 1

Release info:

vagrant@development:/vagrant$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.2 LTS
Release:        14.04
Codename:       trusty

[mislav]

Thanks for reporting. /cc @hsbt re: a possible Ruby 2.3 build bug.

@todd Can you paste the full build log from the referenced file as a gist?

[hsbt]

@todd @mislav I got same error with other user sometimes. I think this is defect of official ruby package. I will investigate this week.

[todd]

@mislav @hsbt Thanks for looking into this. Here's the build log: https://gist.github.com/todd/02657c126de9bd0fbafd

[hsbt]

Hmm, I can't reproduce this situation with ubuntu 14.04 and vagrant.

@todd

Can you provide me output of apt list --installed?

[todd]

@hsbt Updated my Gist with the output of apt list --installed - https://gist.github.com/todd/02657c126de9bd0fbafd#file-apt-list

[todd]

@hsbt preview2 builds are failing as well. New Gist with the build log is here: https://gist.github.com/todd/e7ce9f282a934ca3f8a5

I saw the bug you mentioned on #848, I'll also subscribe to that.

[hsbt]

Thanks tracking. Can you paste your config.status and Makefile?

[todd]

@hsbt Added config.status and the Makefile to the new Gist.

[hsbt]

@todd Thanks for your quick action. we investigate this.

[todd]

Let me know if I can provide any more help.

[hsbt]

We found cause of this issue. You should not use system ruby with 2.3.0 build.

You need to invoke rbenv install 2.2.3 and rbenv global 2.2.3. Aftter that, You can install Ruby 2.3.0preview2.

It's defect of rbenv functions. @eagletmt already submit patch for this issue.

[todd]

Confirmed that rbenv/rbenv#836 fixes this issue. Closing.