How do I install ruby 2.0.0 correctly on Ubuntu 12.04?

Question

I have successfully installed rvm, but when I run the following commands

sudo apt-get update

Or:

rvm install 2.0.0

I have the following errors:

W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/source/Sources  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/binary-i386/Packages  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/source/Sources  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/binary-i386/Packages  404  Not Found

How can I fix these errors?

This question clearly falls within the scope defined by the community: "software tools commonly used by programmers", reopen. — Andrew Prock, Oct 14 '13 at 02:20

score 192 · Accepted Answer · edited Aug 13 '14 at 09:00

192

follow below steps

sudo apt-get -y update
sudo apt-get -y install build-essential zlib1g-dev libssl-dev libreadline6-dev libyaml-dev
cd /tmp
wget http://cache.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p481.tar.gz
tar -xvzf ruby-2.0.0-p481.tar.gz
cd ruby-2.0.0-p481/
./configure --prefix=/usr/local
make
sudo make install

edited Aug 13 '14 at 09:00

UltraInstinct

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answered Apr 25 '13 at 20:45

Pravin Mishra

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Confirm SUDO needed for apt-get's and make install – tentimes Dec 12 '13 at 09:00
these steps are for root account, so don't need a `sudo` :) – Dec 12 '13 at 21:02
@PravinMishra what output when you type on terminal `which ruby` ? – Anton Dozortsev Feb 04 '14 at 14:31
path of ruby installed- "/home/ubuntu/.rvm/rubies/ruby-2.0.0-p195/bin/ruby" This is for my rvm. – Pravin Mishra Feb 04 '14 at 15:11
6

Newest 2.0 source: http://cache.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p451.tar.gz or newest 2.1: http://cache.ruby-lang.org/pub/ruby/2.1/ruby-2.1.1.tar.gz – Whatcould Feb 27 '14 at 19:42
great, I added your script in one line in [my answer below](http://stackoverflow.com/a/29584352/1069083) – rubo77 Apr 12 '15 at 00:04
@Whatcould several important gems are not ported yet for 2.1.1 so there's no way to choose newes version in some cases. – Alexander.Iljushkin Jun 08 '15 at 10:03
2

I'm still at 1.8.7 after following those steps – svassr Sep 18 '15 at 21:40
`cd ../ && rm -r ruby-2.0.0-p481` – Andrew Paramoshkin Sep 30 '15 at 12:55
3

Links to newest stable source releases can always be found at https://www.ruby-lang.org/en/downloads/ – Silveri Feb 28 '16 at 06:52
I'm still 1.9.3 after this :( – Caleb Stanford Mar 02 '16 at 06:18

gmuraleekrishna · Answer 2 · 2017-12-24T05:27:43.793

56

Use `rvm` to install stable ruby:

curl -sSL https://get.rvm.io | bash -s stable --ruby

or, if you have rvm already, get stable version:

rvm get stable

Install ruby and use the specific version of ruby (remember to use login shell)

/bin/bash --login
rvm install 2.0.0
rvm use 2.0.0
rvm rubygems latest
ruby --version

As found on the official RVM website.

EDIT: As @prem points out run this at first and follow the above steps if there is a public key error

gpg --keyserver hkp://keys.gnupg.net --recv-keys \ 409B6B1796C275462A1703113804BB82D39DC0E3

Use `rbenv` to install ruby:

Install necessary dependancies:

sudo apt-get update && sudo apt-get install git-core curl zlib1g-dev \
build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev \
sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev \
python-software-properties libffi-dev

Install rbenv:

cd
git clone git://github.com/sstephenson/rbenv.git .rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile

git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bash_profile
source ~/.bash_profile

Install ruby:

rbenv install -v 2.0.0

edited Dec 24 '17 at 05:27

answered Jul 17 '14 at 12:10

gmuraleekrishna

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some I followed steps and it was continuously falling then I run rvm get and run these steps again and it worked – Guru Mar 25 '15 at 09:52
@Guru edited answer to upgrade rvm to stable version – gmuraleekrishna Mar 27 '15 at 07:27
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If u stumble on public **key issues** run this `gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3` and follow the above steps. – iamprem May 25 '15 at 21:10
I finished the download and it worked fine. After the restart of my computer, an infamous message 'RVM is not a function' was shown when typing command `ruby` and `rvm use 2.0.0`. Here's the solution : [rvm installation not working: “RVM is not a function”](http://stackoverflow.com/questions/9336596/rvm-installation-not-working-rvm-is-not-a-function) – Mincong Huang Mar 20 '16 at 09:57

score 32 · Answer 3 · answered Sep 14 '15 at 16:17

32

From the travis-cli installation instructions for Ubuntu, the Brightbox Ruby NG(NextGeneration) ppa:

$ sudo apt-get install python-software-properties
$ sudo apt-add-repository ppa:brightbox/ruby-ng
$ sudo apt-get update
$ sudo apt-get install ruby2.1 ruby-switch
$ sudo ruby-switch --set ruby2.1

answered Sep 14 '15 at 16:17

ThorSummoner

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This worked for my Ubuntu 14, I would add also `$ sudo apt-get install ruby2.1-dev` that you will need for example if you want to install [Jekyll](http://jekyllrb.com/) which depends on RedCloth, that will complain when installing if headers (like ruby.h) are missing. – Gianluca Casati Sep 26 '15 at 19:24
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Need to update the first line: `sudo apt-get install software-properties-common` – Matt Darby Oct 21 '15 at 17:12
3

Works on my machine :) On ubuntu trusty, vagrant. In case of 2.2dev you need: `apt-get install ruby2.2 ruby2.2-dev ruby-switch` and `ruby-switch --set ruby2.2`. – ColCh Jan 08 '16 at 14:32
after install, i try install jekyll, but get this error `mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h` – ghanbari Aug 23 '16 at 19:52
@ghanbari you may need the header files, they aren't packaged with the release (as only machines that compile software need them), try installing `ruby2.1-dev` if it exists, you are looking for a package named after the primary package with a `-dev` suffix. – ThorSummoner Aug 23 '16 at 20:55

score 7 · Answer 4 · answered Apr 03 '14 at 18:18

Although this answer was accepted, I would strongly recommend using rvm rather. I had nothing but trouble trying to install ruby without it. See e.g. this guide:

https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm

score 3 · Answer 5 · answered Dec 31 '14 at 14:20

Any easy way to install ruby is with ruby-install. I had compile errors when building ruby from scratch, but ruby-install encountered no such problems.

edit: I've had problems with rvm in the past, and feel I should actively recommend against this. That's just me personally, though. I've had okay luck with rbenv, but always use it in conjunction with ruby-install.

score 2 · Answer 6 · answered Apr 25 '13 at 20:08

2

You have some ppa sources enabled that aren't available for your version of Ubuntu. Comment those out in your /etc/apt/sources.list , run sudo apt-get update , and you'll be fine.

answered Apr 25 '13 at 20:08

automan

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score 1 · Answer 7 · answered Jan 20 '15 at 00:36

Use rbenv

The first step is to install some dependencies for Ruby.

sudo apt-get update
sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties

Installing with rbenv is a simple two step process. First you install rbenv, and then ruby-build:

cd
git clone git://github.com/sstephenson/rbenv.git .rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
exec $SHELL

git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bashrc
exec $SHELL

rbenv install 2.0.0
rbenv global 2.0.0
ruby -v

The original post on gorails.com

rubo77 · Answer 8 · 2015-04-12T00:01:10.097

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I put @PravinMishra's source into a Gist and now you can simply use this one liner:

wget -O - https://git.io/vvkI4 | bash

NOTE: Don't trust my Gist blindly, download the file and look into it before you run it!

edited Apr 12 '15 at 00:01

answered Apr 11 '15 at 23:48

rubo77

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How do I install ruby 2.0.0 correctly on Ubuntu 12.04?

8 Answers8

Use `rvm` to install stable ruby:

Use `rbenv` to install ruby:

Linked

How do I install ruby 2.0.0 correctly on Ubuntu 12.04?

8 Answers8

Use rvm to install stable ruby:

Use rbenv to install ruby:

Linked

Use `rvm` to install stable ruby:

Use `rbenv` to install ruby: