intertwingly

On Ubuntu this worked for me:
  sudo gem install rubygems-update
  sudo update_rubygems

What happens when Ubuntu wants to update rubygems?

That’s a better error message than I get on Hardy.

$ sudo gem update --system
Updating RubyGems
Nothing to update

$ sudo gem update --debug --system
Exception `NameError' at /usr/local/lib/site_ruby/1.8/rubygems/command_manager.rb:134 - uninitialized constant Gem::Commands::UpdateCommand
Updating RubyGems
Nothing to update

Zach’s suggestion worked for me.

Upgrading using apt-get install rubygems on 8.10 only brings you up to 1.2.0.

Using update_rubygems directly on a virgin 8.10 system doesn’t work for me, but does provide an alternate means to get access to a setup.rb that does do the trick.

$ sudo gem install update_rubygems
$ sudo update_rubygems
sudo: update_rubygems: command not found
$ sudo /var/lib/gems/1.8/gems/rubygems-update-1.3.1/bin/update_rubygems
Error: Cannot find RubyGems Update Path!

RubyGems has already been updated.
The rubygems-update gem may now be uninstalled.
E.g.    gem uninstall rubygems-update
$ cd /var/lib/gems/1.8/gems/rubygems-update-*
$ sudo ruby setup.rb
$ gem -v
1.3.1

OK, I had better luck with the following:

$ sudo gem install update_rubygems
$ cd /var/lib/gems/1.8/bin
$ sudo ./update_rubygems
$ gem -v
1.3.1
$ sudo gem install rails

I also seem to need libopenssl-ruby installed in order to run script/console.

In order to avoid conflicts with system updates wouldn’t it make more sense to change GEM_HOME to allow non-super install? I would post a link with more info but I am on my phone.

What version of Ruby are people using on Ubuntu 8.10 for Rails development? Are people using the supplied 1.8.7? Or is everyone compiling 1.8.6, which is the recommend version for Rails 2.2?

I don’t know about other systems, but for me, this is what works:

sudo gem install rubygems-update
sudo update_rubygems

There is a mistake in your blog posting:

$ cd rubygems-1.3.1.tgz

should read

$ cd rubygems-1.3.1

Fixed.  Thanks!

[link]

I can’t even begin to wrap my head around why Rubygems is included in any package management system. It’s well known that it doesn’t play nice with others (hence an official position statement by the Debian guys), so why include it at all? The same problem affects OS X, which includes Rubygems and a handful of gems.

So we can either install a duplicate copy in a different path, or update the old version behind the back of whichever package system you use. Both seem like pretty shitty solutions, to me. Sure it might initially be handy, but it’s pretty damn confusing the first time you upgrade.

Did anyone make a bug report?

Been there, done that.  At least in this case, the code is clearly BAD.

Detail link sudo atp-get install ruby rubygems setup http_proxy env, if you gem update through proxy http_proxy=http://proxy serverIP:80/;export http_proxy you can vi .profile for current user $ sudo gem install update_rubygems $ cd...

I tried to update by hand

~$ sudo apt-get install ruby-complete rubygems1.8
~$ sudo gem install rubygem-update
~$ sudo /var/lib/gems/1.8/bin/update_rubygems

it seems to work,
but
~$ gem list
doesnt work

doesn’t show anything.

Will see what a restart does to fix it.
:s

(also the big red “spammers will get told off” alert seems kind of aggressive.
most spammers are surely bots, and don’t take notice of such signs?)

Even you are using Ubuntu Intrepid Ibex 8.10, better to downgrade from Ruby 1.8.7 to 1.8.6, as usufull for more production servers for today.
I have written the article about smart downgrade by using repo from Ubuntu Hardy:
[link]

[link] - intrepid debs with rubygems 1.3.1

I don’t know about you guys, but I could install rails 2.2.2 using gem 1.2.0 un kubuntu 8.04

I feel like upgrading anyway after reading your post, but it does not seems it was required.

Hoje resolvemos testar o Capistrano [1] como nova solução para fazer deploy automático das nossas aplicações web do Labase [2]. Partindo de um Ubuntu 8.04 sem o Ruby [3] instalado, o procedimento é o seguinte: $ sudo apt-get install ruby irb rdoc...

I am current using Ubuntu 8.10. For me, if I ran the commands, rubygems would stay at 1.2 even though it looked like it “updated successfully” If you are trying to update ruby gems on Ubuntu, you may need to install it manually. Sam Ruby has a good...

railsを2.2.2にしたら empty?が未定義とかいわれた .Text - Error encountered なんか、2.1.2 にしたら script/generate ができなくなりました。 ruby script/generate model hoge ってやると undefined method `empty?` for /_generator$/:Regexp ってなります。 まあ、エ...

legend! porting stuff across between Mac OS X (10.5) and opensuse AND ubuntu and this trick saved my bacon.

cheers!

sudo gem install rubygems-update  This worked for me perfectly.

Thank you  Bob Aman for the post.

I found an easier way to update to 1.3.1 without any bugs
Install Ruby
this will install ruby1.8

sudo apt-get install ruby

Install ruby1.9
sudo apt-get install ruby1.9

Install rubygems 1.9
$  sudo apt-get install rubygems1.9

$ gem -v
$ 1.2.0

Install rails
sudo gem install rails

Update gem
$ sudo gem install rubygems-update
[sudo] password for :
Successfully installed rubygems-update-1.3.1
1 gem installed
$ gem -v
1.3.1

$ rails -v
Rails 2.2.2

Some time ago Rails 2.2 was released. Since than the framework requires rubygems 1.3.1 to run. Unfortunately Ubuntu 8.10 only has rubygems 1.2.0 in its repositories. A quick google search didn’t yield a good solution for this. Everyone is...

You da man. Thanks for the post, it was exactly the issue at hand.

after updating gem using the update-rubygems gem, it was impossible to show “gem list”

is the only output.

after updating gem using the update-rubygems gem, “gem list” show only an empty list.

Another anecdote about my inability to handle Ubuntu for the delight of the knowledgeable readers: Since gem 1.3.1 is not out for Ubuntu, rails won’t start the server. Therefore I tried to manually update gem. And since gem 1.3.1 has a totally...

우분투를 가지고 노는 재미가 쏠쏠하다.. windows xp 는 쓰면서도 살짝 재미는 없었는데.. 우분투는 새로운 OS라 좀 재밌는 것 같다..   아직도 windows 사용하니? (내가 쓴말이지만 와.. 이거 진짜 웃긴다.. ㅡㅡ;;)   하면서 살짝 자랑같이 말하고 싶기도 하지만.. ㅡㅡ;; 그럴려면 꽤 많은 시간이 필요할 듯 하다.. ㅡㅡ;; (이게 젤 삽질 안하는 리눅스라니.. 그나마 다행)...

Chaps - you are missing something.

On Debian some common gems like rails are packaged, these go in the standard debian gem home of /var/lib/gems and is the setup for gem 1.2.0.

When you do the /var/lib/gems/1.8/bin/update_rubygems to go to 1.3.1 the update will ignore the debian gem home and use a combination of /usr/lib/gem and $HOME/.gem as the GEM_PATHs so any gems installed via apt-get or updated by the debian system will not be seen by gem list thereafter.  The GEM_PATH is realised by ruby code somewhere in the 1.3.1 ruby codebase.  I have read posts where debian maintainers complain about this.

If you read default.rb (I am not at my ubuntu box as I write this) it seems that the rubygems guys know about the debian /var/lib/gem path but don’t adjust the GEM_PATH to include the debian path.  We are, at the moment, pawns in a game between debian maintainers and rubygems devs.  I am going to try a .bashrc solution that tries to append the debian path to the output of ‘gem env path’.  On a dev box, I hate having to do sudo gem install to get gems for user space stuff.

I think that on a debian box it should be like this...
sudo gem install xxx puts the gem in /var/lib/gem/... (if the gem exists in $HOME/.gem/ then move it to /var/lib/gem)
and
gem install xxx puts the gem in $HOME/.gem/ (unless the gem already exists in /var/lib/gem)

and gems list show the gems from both locations

Is anyone else pissed off with this?

You missed something important: after sudo ruby setup.rb in kubuntu 8.10
you cannot run gem

gem -v
The program ‘gem’ can be found in the following packages:

• rubygems1.8
• rubygems1.9

Try: sudo apt-get install <selected package>
bash: gem: command not found

It is gem1.8 -v

Please explain how to fix anyone? Think it has something to do with ln -s

Sonder: update-alternatives --config gem

[link]...

Community Engine es un plugin de Ruby On Rails . En otras palabras, es una extensión de Redes Sociales para un Framework Web programado por completo en Ruby . Y Ruby, es un lenguaje de programación derivado de SmallTalk , con lo que quienes saben...

Nice. This one works as well: http://programmers-blog.com/2009/04/12/ruby-gem-update-system-is-disabled-on-debian

Follow the instructions on Ubuntu’s wiki.

https://help.ubuntu.com/community/RubyOnRails#RubyGems 1.3.1

This post was mentioned on Twitter by marcheiligers: Update rubygems on Ubuntu [link] and [link]... [more]

Trackback from uberVU - social comments

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