Installing rails on Ubuntu

luislavena · January 21, 2012, 10:39pm

Hello, I’m trying to install the rails on ubuntu 11.10, but when I put
the command

felipe@Felipe:~/Downloads/rubygems-1.8.15$ sudo gem install rails
–no-r1 --no-rdoc
ERROR: Loading command: install (LoadError)
no such file to load – zlib
ERROR: While executing gem … (NameError)
uninitialized constant Gem::Commands::InstallCommand
felipe@Felipe:~/Downloads/rubygems-1.8.15$

it return this error, how can I install correctly.

Thanks

lipe_pe · January 21, 2012, 10:49pm

On 21 January 2012 21:39, Felipe Pieretti U.
[email protected] wrote:

Hello, I’m trying to install the rails on ubuntu 11.10, but when I put
the command

felipe@Felipe:~/Downloads/rubygems-1.8.15$ sudo gem install rails

The best way to install rails is to use rvm. See
http://beginrescueend.com/

Colin

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lipe_pe · January 21, 2012, 10:49pm

On Jan 21, 3:39pm, Felipe Pieretti U. [email protected]
wrote:

it return this error, how can I install correctly.

Have you installed:
apt-get install zlib1g zlib1g-dev

Also - in general, it is not a good idea to install gems using sudo.

lipe_pe · January 21, 2012, 10:53pm

CavalryJim wrote in post #1041969:

Also - in general, it is not a good idea to install gems using sudo.

CavalryJim, what is the best way to install ?

lipe_pe · January 21, 2012, 10:52pm

On Sat, Jan 21, 2012 at 10:39 PM, Felipe Pieretti U. <
[email protected]> wrote:

it return this error, how can I install correctly.

The default first answer to these questions is, “use rvm” (really !).

https://rvm.beginrescueend.com/

E.g. for Ubuntu 11.10, I wrote a detailed log of doing it from scratch
(and there are many others if you Google):

http://rails.vandenabeele.com/blog/2011/11/26/installing-ruby-and-rails-with-rvm-on-ubuntu-11-dot-10/

Note that you will NOT need to do “sudo” with rvm, It is a local install
that you could alway wipe out and start over etc. if you are
experimenting …
(you could even make a separate “ror” user and do rvm there,
just to practice without risk.

If you really want to install system with sudo , than the specific
problem
you face is probably that you miss a number -dev libraries.

Probably

$ sudo apt-get install zlib1g zlib1g-dev

will get you out of this one and then you will probably hit the next
error
…

(I recently installed on a different Ubuntu 11.10 without rvm, it was a
lot
harder and the write-up is here:
http://rails.vandenabeele.com/blog/2012/01/15/installing-ruby-rails-passenger-on-ubuntu-11-dot-10/
Not advised unless you are more experienced).

HTH,

Peter

–
Peter V.
http://twitter.com/peter_v
http://rails.vandenabeele.com

lipe_pe · January 21, 2012, 11:19pm

On Jan 21, 3:53pm, Felipe Pieretti U. [email protected]
wrote:

CavalryJim wrote in post #1041969:

Also - in general, it is not a good idea to install gems using sudo.

CavalryJim, what is the best way to install ?

–
Posted viahttp://www.ruby-forum.com/.

As Colin stated, a best practice for installing ruby is rvm.

For installing rails, use ‘gem install rails’

For all other gems, add the gem to your projects gemfile and run
‘bundle install’.

lipe_pe · January 21, 2012, 11:30pm

Ok, but, when I try with ‘gem install rails’

felipe@Felipe:~$ gem install rails
ERROR: Loading command: install (LoadError)
no such file to load – zlib
ERROR: While executing gem … (NameError)
uninitialized constant Gem::Commands::InstallCommand
felipe@Felipe:~$

some lib are missing, but I put the command

sudo apt-get install zlib1g zlib1g-dev

and was all updated

lipe_pe · January 21, 2012, 11:15pm

I’m following the tutorial, but when I try put the commando ‘rvm install
1.8.7’ shows

felipe@Felipe:~$ rvm install 1.8.7
bash: /usr/bin/rvm: File or folder not found
felipe@Felipe:~$

lipe_pe · January 21, 2012, 11:43pm

On Sat, Jan 21, 2012 at 11:30 PM, Felipe Pieretti U. <
[email protected]> wrote:

some lib are missing, but I put the command

sudo apt-get install zlib1g zlib1g-dev

and was all updated

From which source did you install your ruby and rubygems?
Where are they installed?

Could you run these commands and show the output please.

$ ruby -v

$ which ruby # if it is a symlink, follow it also

$ gem -v

$ which gem # if it is a symlink follow it also

$ echo $PATH

And again … even if you have started with manual install
of Ruby etc, you can still go to rvm (and inside rvm you
can use $ rvm system to go back to the system installed
ruby if you need to; I demonstrate that below).

As reference, on my system (rvm on Ubuntu 11.10):

peterv@ASUS:~$ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [i686-linux]
peterv@ASUS:~$ which ruby
/home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin/ruby
peterv@ASUS:~$ gem -v
1.8.10
peterv@ASUS:~$ which gem
/home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin/gem
peterv@ASUS:~$ echo $PATH
/home/peterv/.rvm/gems/ruby-1.9.3-p0/bin:/home/peterv/.rvm/gems/ruby-1.9.3-p0@global
/bin:/home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin:/home/peterv/.rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

Falling back (what I normally never do anymore) to system ruby:

peterv@ASUS:~$ rvm use system
Now using system ruby.
peterv@ASUS:~$ ruby -v
ruby 1.8.7 (2010-01-10 patchlevel 249) [i486-linux]
peterv@ASUS:~$ which ruby
/usr/bin/ruby
peterv@ASUS:~$ gem -v
1.3.7
peterv@ASUS:~$ which gem
/usr/bin/gem
peterv@ASUS:~$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/home/peterv/.rvm/bin

HTH,

Peter

lipe_pe · January 21, 2012, 11:47pm

On Sat, Jan 21, 2012 at 4:30 PM, Felipe Pieretti U. <
[email protected]> wrote:

some lib are missing, but I put the command

sudo apt-get install zlib1g zlib1g-dev

and was all updated

I have used Rails Ready in the past, and it made the setup rather easy.

https://github.com/joshfng/railsready

Jason

lipe_pe · January 21, 2012, 11:55pm

felipe@Felipe:~/Downloads/rubygems-1.8.15$ ruby -v
ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]
felipe@Felipe:~/Downloads/rubygems-1.8.15$ which ruby
/usr/local/bin/ruby
felipe@Felipe:~/Downloads/rubygems-1.8.15$ gem -v
1.8.15
felipe@Felipe:~/Downloads/rubygems-1.8.15$ which gem
/usr/local/bin/gem
felipe@Felipe:~/Downloads/rubygems-1.8.15$ echo $PATH
/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

felipe@Felipe:~/Downloads/rubygems-1.8.15$ rvm use system
Now using system ruby.
felipe@Felipe:~/Downloads/rubygems-1.8.15$ ruby -v
ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]
felipe@Felipe:~/Downloads/rubygems-1.8.15$ which ruby
/usr/local/bin/ruby
felipe@Felipe:~/Downloads/rubygems-1.8.15$ gem -v
1.8.15
felipe@Felipe:~/Downloads/rubygems-1.8.15$ which gem
/usr/local/bin/gem
felipe@Felipe:~/Downloads/rubygems-1.8.15$ echo $PATH
/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

lipe_pe · January 22, 2012, 1:09am

Ok, I try, but, look what happen when I put rvm get stable

felipe@Felipe:~$ rvm get stable
felipe@Felipe:~$

nothing…

I’m brazilian, so, the language is portuguese, but I guess is easy to
know the error messages.

felipe@Felipe:~$ rvm get stable
felipe@Felipe:~$ ruby -v
ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]
felipe@Felipe:~$ which ruby
/usr/local/bin/ruby
felipe@Felipe:~$ gem -v
1.8.15
felipe@Felipe:~$ which gem
/usr/local/bin/gem
felipe@Felipe:~$ echo $PATH
/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
felipe@Felipe:~$ rvm use 1.9.3 --default
WARN: ruby ruby-1.9.3 is not installed.
To install do: ‘rvm install ruby-1.9.3’
felipe@Felipe:~$ rvm list

rvm rubies

felipe@Felipe:~$ rvm gemset create first_app
mkdir: é impossível criar o diretório
“/usr/local/lib/ruby/gems/1.9.1@first_app”: Permissão negada
‘first_app’ gemset created (/usr/local/lib/ruby/gems/1.9.1@first_app).
felipe@Felipe:~$ gem install rails
ERROR: Loading command: install (LoadError)
no such file to load – zlib
ERROR: While executing gem … (NameError)
uninitialized constant Gem::Commands::InstallCommand
felipe@Felipe:~$ rails help
O programa ‘rails’ não está instalado no momento. Você pode instalá-lo
digitando:
sudo apt-get install rails
felipe@Felipe:~$ rails new first_app -skip-bundle
O programa ‘rails’ não está instalado no momento. Você pode instalá-lo
digitando:
sudo apt-get install rails
felipe@Felipe:~$ cd first_app
bash: cd: first_app: Arquivo ou diretório não encontrado
felipe@Felipe:~$ echo “gem ‘therubyracer’” >> Gemfile
felipe@Felipe:~$ bundle install
O programa ‘bundle’ não está instalado no momento. Você pode instalá-lo
digitando:
sudo apt-get install ruby-bundler
felipe@Felipe:~$ rake environment
rake aborted!
No Rakefile found (looking for: rakefile, Rakefile, rakefile.rb,
Rakefile.rb)
/usr/local/lib/ruby/1.9.1/rake.rb:2367:in raw_load_rakefile' /usr/local/lib/ruby/1.9.1/rake.rb:2007:inblock in load_rakefile’
/usr/local/lib/ruby/1.9.1/rake.rb:2058:in standard_exception_handling' /usr/local/lib/ruby/1.9.1/rake.rb:2006:inload_rakefile’
/usr/local/lib/ruby/1.9.1/rake.rb:1991:in run' /usr/local/bin/rake:31:in’
felipe@Felipe:~$

Thank’s

lipe_pe · January 22, 2012, 12:10am

On Sat, Jan 21, 2012 at 11:55 PM, Felipe Pieretti U. <
[email protected]> wrote:

/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

felipe@Felipe:~/Downloads/rubygems-1.8.15$ rvm use system
Now using system ruby.

Ah, you actually do have rvm installed …

Did you already install some rubies ?

Anyway, this sequence should work then

peterv@ASUS:~$ rvm get stable

Original installed RVM version:

rvm 1.10.2 by Wayne E. Seguin [email protected], Michal P. <
[email protected]> [https://rvm.beginrescueend.com/]

Downloading RVM from wayneeseguin branch stable
% Total % Received % Xferd Average Speed Time Time Time
Current
Dload Upload Total Spent Left
Speed
100 799k 100 799k 0 0 337k 0 0:00:02 0:00:02 --:–:–
677k

Upgrading the RVM installation in /home/peterv/.rvm/
RVM sourcing line found in: /home/peterv/.bashrc.

Upgrade Notes:

No new notes to display.

RVM: Shell scripts enabling management of multiple ruby environments.

RTFM: https://rvm.beginrescueend.com/

HELP: Kiwi IRC (#rvm on

irc.freenode.net)

Screencast: http://screencasts.org/episodes/how-to-use-rvm

In case of any issues read output of ‘rvm requirements’ and/or 'rvm

notes’

Upgrade of RVM in /home/peterv/.rvm/ is complete.

Peter V.,

Thank you for using RVM!

I sincerely hope that RVM helps to make your life easier and more

enjoyable!!!

~Wayne

Installed RVM stable version:

rvm 1.10.2 by Wayne E. Seguin [email protected], Michal P. <
[email protected]> [https://rvm.beginrescueend.com/]

RVM reloaded!

peterv@ASUS:~$ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [i686-linux]

peterv@ASUS:~$ which ruby
/home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin/ruby

peterv@ASUS:~$ gem -v
1.8.10

peterv@ASUS:~$ which gem
/home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin/gem

peterv@ASUS:~$ echo $PATH
/home/peterv/.rvm/gems/ruby-1.9.3-p0/bin:/home/peterv/.rvm/gems/ruby-1.9.3-p0@global
/bin:/home/peterv/.rvm/rubies/ruby-1.9.3-p0/bin:/home/peterv/.rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

peterv@ASUS:~$ rvm use 1.9.3 --default
Using /home/peterv/.rvm/gems/ruby-1.9.3-p0

peterv@ASUS:~$ rvm list

rvm rubies

jruby-1.6.4 [ i386 ]
jruby-1.6.5.1-d19 [ i386 ]
ruby-1.8.7-p352 [ i686 ]
ruby-1.9.2-head [ i686 ]
ruby-1.9.2-p290 [ i686 ]
ruby-1.9.3-head [ i686 ]
=* ruby-1.9.3-p0 [ i686 ]
ruby-1.9.3-rc1 [ i686 ]

=> - current

=* - current && default

* - default

rvm gempeterv@ASUS:~$ rvm gemset create first_app
‘first_app’ gemset created
(/home/peterv/.rvm/gems/ruby-1.9.3-p0@first_app).
peterv@ASUS:~$ rvm use 1.9.3@first_app
Using /home/peterv/.rvm/gems/ruby-1.9.3-p0 with gemset first_app
peterv@ASUS:~$ gem list

*** LOCAL GEMS ***

bundler (1.0.21)
rake (0.9.2.2)

peterv@ASUS:~$ gem install rails
Fetching: i18n-0.6.0.gem (100%)
…
Fetching: json-1.6.5.gem (100%)
Building native extensions. This could take a while…
…
Fetching: rdoc-3.12.gem (100%)
Depending on your version of ruby, you may need to install ruby rdoc/ri
data:

<= 1.8.6 : unsupported
= 1.8.7 : gem install rdoc-data; rdoc-data --install
= 1.9.1 : gem install rdoc-data; rdoc-data --install

= 1.9.2 : nothing to do! Yay!
Fetching: railties-3.2.0.gem (100%)
Fetching: rails-3.2.0.gem (100%)
Successfully installed i18n-0.6.0
…
Successfully installed rails-3.2.0
29 gems installed

peterv@ASUS:~$ rails help
Usage:
rails new APP_PATH [options]
…

peterv@ASUS:~$ rails new first_app --skip-bundle
create
create README.rdoc
…
create vendor/plugins/.gitkeep

peterv@ASUS:~$ cd first_app/

peterv@ASUS:~/first_app$ echo “gem ‘therubyracer’” >> Gemfile

peterv@ASUS:~/first_app$ bundle install
Fetching source index for https://rubygems.org/
Using rake (0.9.2.2)
Using i18n (0.6.0)
Using multi_json (1.0.4)
Using activesupport (3.2.0)
Using builder (3.0.0)
Using activemodel (3.2.0)
Using erubis (2.7.0)
Using journey (1.0.0)
Using rack (1.4.0)
Using rack-cache (1.1)
Using rack-test (0.6.1)
Using hike (1.2.1)
Using tilt (1.3.3)
Using sprockets (2.1.2)
Using actionpack (3.2.0)
Using mime-types (1.17.2)
Using polyglot (0.3.3)
Using treetop (1.4.10)
Using mail (2.4.1)
Using actionmailer (3.2.0)
Using arel (3.0.0)
Using tzinfo (0.3.31)
Using activerecord (3.2.0)
Using activeresource (3.2.0)
Using bundler (1.0.21)
Installing coffee-script-source (1.2.0)
Installing execjs (1.3.0)
Installing coffee-script (2.2.0)
Using rack-ssl (1.3.2)
Using json (1.6.5)
Using rdoc (3.12)
Using thor (0.14.6)
Using railties (3.2.0)
Installing coffee-rails (3.2.1)
Installing jquery-rails (2.0.0)
Installing libv8 (3.3.10.4)
Using rails (3.2.0)
Installing sass (3.1.12)
Installing sass-rails (3.2.3)
Installing sqlite3 (1.3.5) with native extensions
Installing therubyracer (0.9.9) with native extensions
Installing uglifier (1.2.2)
Your bundle is complete! Use bundle show [gemname] to see where a
bundled
gem is installed.
peterv@ASUS:~/first_app$ rake environment #This should not fail now
peterv@ASUS:~/first_app$ # go on from here …

HTH,

Peter

–
Peter V.
http://twitter.com/peter_v
http://rails.vandenabeele.com

lipe_pe · January 22, 2012, 1:29am

On Sun, Jan 22, 2012 at 1:09 AM, Felipe Pieretti U. <
[email protected]> wrote:

felipe@Felipe:~$ rvm get stable

/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

felipe@Felipe:~$ rvm use 1.9.3 --default
WARN: ruby ruby-1.9.3 is not installed.
To install do: ‘rvm install ruby-1.9.3’
felipe@Felipe:~$ rvm list

rvm rubies

OK, since you do not have any rubies installed yet
(unlike my system), you should do here:

$ ruby list known # this will show all available rubies

pick one of them, best is ruby 1.9.3 to start

$ ruby install 1.9.3

sorry, I probably forgot to document that step, since the

rubies are already installed on my computer.

now all commands here after should work.

O programa ‘rails’ no est instalado no momento. Voc pode instal-lo
O programa ‘bundle’ no est instalado no momento. Voc pode instal-lo
/usr/local/lib/ruby/1.9.1/rake.rb:1991:in `run’
You received this message because you are subscribed to the Google G.
“Ruby on Rails: Talk” group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
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–
Peter V.
http://twitter.com/peter_v
http://rails.vandenabeele.com
gsm: +32-478-27.40.69
e-mail: [email protected]

lipe_pe · January 22, 2012, 1:29am

On Sun, Jan 22, 2012 at 1:27 AM, Peter V.
[email protected]wrote:

nothing…
1.8.15
rvm rubies
$ ruby install 1.9.3

That’s gibberish … sorry

$ rvm install ruby-1.9.3

Peter

lipe_pe · January 22, 2012, 2:08am

$ ruby list known # this will show all available rubies

pick one of them, best is ruby 1.9.3 to start

felipe@Felipe:~$ ruby list know
ruby: No such file or directory – list (LoadError)
felipe@Felipe:~$

That’s gibberish … sorry

$ rvm install ruby-1.9.3

felipe@Felipe:~$ rvm install ruby-1.9.3
Installing Ruby from source to: /usr/share/ruby-rvm/rubies/ruby-1.9.3,
this may take a while depending on your cpu(s)…

ruby-1.9.3 - #fetching
ruby-1.9.3 - #extracting ruby-1.9.3- to
/usr/share/ruby-rvm/src/ruby-1.9.3
ERROR: Error running ‘bunzip2 <
‘/usr/share/ruby-rvm/archives/ruby-1.9.3-.tar.bz2’ | tar xf - -C
/usr/share/ruby-rvm/tmp/rvm_src_2991’, please read
/usr/share/ruby-rvm/log/ruby-1.9.3/extract.log
ERROR: There has been an error while trying to extract the source.
Halting the installation.
ERROR: There has been an error fetching the ruby interpreter. Halting
the installation.
felipe@Felipe:~$

I’m using Ubuntu 11.10, I was following, before your steps, this
tutorial:
http://blog.sudobits.com/2011/10/27/how-to-install-ruby-on-rails-in-ubuntu-11-10/

lipe_pe · January 22, 2012, 3:20am

Thank for all the people that help me, I see another tutorial, and I was
having a huge mistake, I wasn’t restart the terminal, that was the
problem…

Thank’s again…