How to install Ruby 2 on Ubuntu without RVM

Question

I want to install ruby 2.0 using

sudo apt-get install ruby2.0

But there isn't available package for ruby2.0

I want to install it using apt-get install the same like ruby 1.9.1

Any suggestions?

There is no Ruby 2 package for Ubuntu 12.04 AFAIK. You have to build it by yourself and then install it using checkinstall. — toro2k, Aug 28 '13 at 14:31

score 101 · Accepted Answer · edited May 23 '17 at 12:09

101

sudo apt-get -y update
sudo apt-get -y install build-essential zlib1g-dev libssl-dev libreadline6-dev libyaml-dev
cd /tmp
wget http://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p451.tar.gz
tar -xvzf ruby-2.0.0-p451.tar.gz
cd ruby-2.0.0-p451/
./configure --prefix=/usr/local
make
sudo make install

from here How do I install ruby 2.0.0 correctly on Ubuntu 12.04?

UPDATE

for ruby 2.1.5

sudo apt-get -y update
sudo apt-get -y install build-essential zlib1g-dev libssl-dev libreadline6-dev libyaml-dev
cd /tmp
wget http://ftp.ruby-lang.org/pub/ruby/2.1/ruby-2.1.5.tar.gz 
tar -xvzf ruby-2.1.5.tar.gz
cd ruby-2.1.5/
./configure --prefix=/usr/local
make
sudo make install

if you are still seeing an older ruby check your symlink ls -la /usr/bin/ruby from hector

edited May 23 '17 at 12:09

Community

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answered Aug 28 '13 at 14:34

danmanstx

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Optionally, run `make check` to check whether the compiled Ruby interpreter works well. If you see the message "check succeeded", your ruby works as it should – lightswitch05 Mar 12 '14 at 01:15
My Ruby is now at version 2, but irb is still 1.9.3. How can I fix that? – Daniil Shevelev Jul 16 '14 at 19:39
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The install process worked great except for the last command which I had to run as sudo. Also I am still seeing ruby as v 1.9.3. How can I switch to ruby 2? – Randall Flagg Sep 02 '14 at 05:27
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@RandallFlagg type `which ruby` and you'll get a path to some location (e.g. /usr/bin/ruby) This path is typically a symlink to the actual Ruby executable. Type `ls -la /usr/bin/ruby` and you'll probably see it being symlinked to ruby1.9.x. If that's the case, update the symlink to point to the new location. – Hector Correa Nov 16 '14 at 16:57
@Dash Before installing Ruby 2.x remove old ruby. Check this issue http://stackoverflow.com/questions/3957730/how-can-i-uninstall-ruby-on-ubuntu – TheodorosPloumis Feb 26 '15 at 19:37
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IMPORTANT for **Ruby 2.2.x on Ubuntu 14.04.1 (x86_64)**. You must also install `libffi-dev` before compilling. Check this out https://github.com/sstephenson/ruby-build/issues/690 – TheodorosPloumis Feb 26 '15 at 19:46
Hello guy's thanks for this nice way. Firstly when i do make check it throw me 22 failures and 6 errors is it ok to use in prod ? If no what should I do to correct it. Secondly, In the long term how can I update ruby or remove it in a clean way? I guess the update need a remove before an update then the same command make the deal. But how remove it? I guess it won't be easy as apt-get purge. – Guillaume Sep 13 '15 at 22:12
@Guillaume did you found an easy way to remove it? – dotmindlabs Jun 13 '16 at 08:20
Worked like a champ for Ruby 2.3.1 with this wget: `wget https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.1.tar.gz` – Dave Collins Feb 17 '17 at 18:41

score 57 · Answer 2 · edited Mar 25 '14 at 21:04

57

sudo apt-add-repository ppa:brightbox/ruby-ng-experimental &&
sudo apt-get update &&
sudo apt-get install -y ruby2.0 ruby2.0-dev ruby2.0-doc

Easy to use ^ㅡ^

edited Mar 25 '14 at 21:04

answered Oct 07 '13 at 08:16

Dokdo

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what output when you type on terminal `which ruby` ? – Anton Dozortsev Feb 04 '14 at 14:31
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This seams to install Ruby 1.9 and Ruby 2, with 1.9 as the default. How do I make Ruby 2.0 the default? – Paul Grenyer Mar 03 '14 at 09:59
You have a mistake, it "apt-add-repository" no add-apt – Ba7a7chy Mar 05 '14 at 12:37
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@Ba7a7chy Not really. apt-add-repository is a symlink for add-apt-repository introduced in Ubuntu 11.04. – SáT Mar 25 '14 at 21:07

Denis Denisov · Answer 3 · 2015-06-13T12:15:11.823

# Adds Ruby 2.2 to Ubuntu 14.04
sudo apt-add-repository ppa:brightbox/ruby-ng
# Adds Ruby v1.9/2.0/2.1/2.2 to Ubuntu 14.04/15.04
# sudo add-apt-repository ppa:brightbox/ruby-ng-experimental

sudo apt-get update
sudo apt-get install ruby2.2 ruby2.2-dev

# http://stackoverflow.com/a/1892889/2126990
# priority ruby: https://gist.github.com/brodock/7693207
sudo update-alternatives --remove ruby /usr/bin/ruby2.2
sudo update-alternatives --remove irb /usr/bin/irb2.2
sudo update-alternatives --remove gem /usr/bin/gem2.2

sudo update-alternatives \
    --install /usr/bin/ruby ruby /usr/bin/ruby2.2 50 \
    --slave /usr/bin/irb irb /usr/bin/irb2.2 \
    --slave /usr/bin/rake rake /usr/bin/rake2.2 \
    --slave /usr/bin/gem gem /usr/bin/gem2.2 \
    --slave /usr/bin/rdoc rdoc /usr/bin/rdoc2.2 \
    --slave /usr/bin/testrb testrb /usr/bin/testrb2.2 \
    --slave /usr/bin/erb erb /usr/bin/erb2.2 \
    --slave /usr/bin/ri ri /usr/bin/ri2.2

update-alternatives --config ruby
update-alternatives --display ruby

$ irb
irb(main):001:0> RUBY_VERSION
=> "2.2.0"

$ ruby --version
ruby 2.2.0p0 (2014-12-25 revision 49005) [x86_64-linux-gnu]

My Ruby is now at version 2, but irb is still 1.9.3. How can I fix that? — Daniil Shevelev, Jul 16 '14 at 19:43
Appears that update-alternatives part could be skipped. I am getting `irb(main):001:0> RUBY_VERSION => "2.1.2"` right after `apt-get install`. — Goran Miskovic, Aug 03 '14 at 13:44

kikito · Answer 4 · 2015-04-14T10:29:03.510

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Since this question was answered I have found a new alternative here:

https://www.brightbox.com/docs/ruby/ubuntu/

In short:

# For ubuntu >= 14.04 install software-properties-common
# instead of python-software-properties
sudo apt-get install python-software-properties
sudo apt-add-repository ppa:brightbox/ruby-ng
sudo apt-get update

sudo apt-get -y install ruby2.2 ruby-switch
sudo ruby-switch --set ruby2.2

I must say that according to my tests this is faster than the alternatives shown here, because the compiling step is skipped.

edited Apr 14 '15 at 10:29

answered Apr 14 '15 at 10:20

kikito

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I can confirm this is both faster, less complicated, and less prone to errors. – Micah Bolen Sep 14 '15 at 00:59
No Wily Werewolf version is available yet :( – Zyphrax Dec 04 '15 at 18:12
You may need apt-get update && apt-get install software-properties-common in order to use apt-add-repository – nelsonenzo Jan 15 '16 at 19:21
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Works great, this answer deserves to go at the top! – Kostas Demiris Jan 26 '16 at 13:55
I get "Invalid interpreter: ruby2.2", and a listing only shows ruby1.9.1 as an option. – RCross Jun 22 '17 at 22:28
@RCross you probably need to ask the Brightbox guys. I did not create that tutorial and haven't used this method in a while. – kikito Jun 23 '17 at 11:46

score 0 · Answer 5 · answered Mar 28 '16 at 20:57

0

I particularly like ruby-install, available here: https://github.com/postmodern/ruby-install

It will install ruby (any version), JRuby, etc., and has many other features besides.

answered Mar 28 '16 at 20:57

DMCoding

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score 0 · Answer 6 · answered Nov 26 '16 at 18:04

The better way to install ruby on ubuntu without RVM is to install it with rbenv in terminal as follows:

$ sudo apt-get update

Install the rbenv and Ruby dependencies with apt-get:

$ 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

Now run these commands as follows:

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

Time to install ruby:

$ rbenv install 2.3.3

which ever is the latest and stable version

$ rbenv global 2.3.3

To check the version

$ ruby -v

To disable the local documentation, as this process can be lengthy:

$ echo "gem: --no-document" > ~/.gemrc

Install the bundler gem, to manage your application dependencies:

$ gem install bundler

The title of this post is "How to install Ruby 2 on Ubuntu without RVM". Note the "WITHOUT RVM" in the title. — ChaosFreak, Jun 16 '18 at 16:30

How to install Ruby 2 on Ubuntu without RVM

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