redmineのインストール db編

ということで、先にpostgresの設定

1) パッケージのインストール

apt-get install postgresql


2) DBの初期設定

postgresユーザができているので、パスワードを設定しsu -、psqlでひとまずdbにログインできたらＯＫ。

psql -lを打ってみると

List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
postgres | postgres | UTF8 | ja_JP.UTF-8 | ja_JP.UTF-8 |
template0 | postgres | UTF8 | ja_JP.UTF-8 | ja_JP.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | ja_JP.UTF-8 | ja_JP.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
(3 rows)

という状態だった。

再度psqlでログインして、以下の設定を行う。

CREATE ROLE redmine LOGIN ENCRYPTED PASSWORD 'my_password' NOINHERIT VALID UNTIL 'infinity';

※'my_password' は適宜変更しないとねっ。間違ってそのまま打っちゃったよｗ　そんな時はalterで変更だねっ＾＾；

CREATE DATABASE redmine WITH ENCODING='UTF8' OWNER=redmine;

psql -lを打ってみると

List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
postgres | postgres | UTF8 | ja_JP.UTF-8 | ja_JP.UTF-8 |
redmine | redmine | UTF8 | ja_JP.UTF-8 | ja_JP.UTF-8 |
template0 | postgres | UTF8 | ja_JP.UTF-8 | ja_JP.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | ja_JP.UTF-8 | ja_JP.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
(4 rows)

できてるできてる。

/var/lib/redmine/configに移動して、configuration.yml.exampleをもとに、configuration.yml作成。
例ではipaフォントを指定していたので、私もIPAフォントをwgetで落として/usr/share/fontsに解凍して設定。


3) database.ymlの設定

以下のように設定

production:
adapter: postgresql
database: redmine
host: localhost
username: redmine
password: "ひみつ"
encoding: utf8
schema_search_path: public

redmineのインストール

さて、それではredmineをインストール。
参考は、Redmine.JP


1) bundlerのインストール

~$ rvmsudo gem install bundler
Fetching: bundler-1.3.5.gem (100%)
Successfully installed bundler-1.3.5
1 gem installed
Installing ri documentation for bundler-1.3.5...
Installing RDoc documentation for bundler-1.3.5...

~$ rvmsudo bundle install --without development test
Bundler::GemfileNotFound

ありゃ、早速問題が、というかそりゃないよね。

先に、/var/lib/redmineにSubversionでリリースパッケージをダウンロード。
#UbuntuにはSubversionが入ってないので、その前にapt-getしておく

/var/lib$ sudo svn checkout http://svn.redmine.org/redmine/branches/2.3-stable redmine

/var/libというインストール先はRedmine.JPでpassengerでredmineを動作させる場合のケースに書いてあったパスを採用した。/var/lib/redmine配下にGemfileがあることを確認。


2) bundlerの実行

/var/lib/redmine$ rvmsudo bundle install --without development test
Please configure your config/database.yml first
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Using rake (10.1.0)
Installing i18n (0.6.1)
Using multi_json (1.8.2)
Installing activesupport (3.2.13)
Installing builder (3.0.0)
Installing activemodel (3.2.13)
Using erubis (2.7.0)
Using journey (1.0.4)
Using rack (1.4.5)
Using rack-cache (1.2)
Using rack-test (0.6.2)
Using hike (1.2.3)
Using tilt (1.4.1)
Using sprockets (2.2.2)
Installing actionpack (3.2.13)
Using mime-types (1.25)
Using polyglot (0.3.3)
Using treetop (1.4.15)
Using mail (2.5.4)
Installing actionmailer (3.2.13)
Using arel (3.0.2)
Using tzinfo (0.3.38)
Installing activerecord (3.2.13)
Installing activeresource (3.2.13)
Using bundler (1.3.5)
Installing coderay (1.0.9)
Using rack-ssl (1.3.3)
Using json (1.8.1)
Using rdoc (3.12.2)
Using thor (0.18.1)
Installing railties (3.2.13)
Installing jquery-rails (2.0.3)
Installing net-ldap (0.3.1)
Installing ruby-openid (2.3.0)
Installing rack-openid (1.4.0)
Installing rails (3.2.13)
Installing rmagick (2.13.2)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

/usr/local/rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... no
Can't install RMagick 2.13.2. Can't find Magick-config in /usr/local/rvm/gems/ruby-1.9.3-p448/bin:/usr/local/rvm/gems/ruby-1.9.3-p448@global/bin:/usr/local/rvm/rubies/ruby-1.9.3-p448/bin:/usr/local/rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/rvm/rubies/ruby-1.9.3-p448/bin/ruby


Gem files will remain installed in /usr/local/rvm/gems/ruby-1.9.3-p448/gems/rmagick-2.13.2 for inspection.
Results logged to /usr/local/rvm/gems/ruby-1.9.3-p448/gems/rmagick-2.13.2/ext/RMagick/gem_make.out

An error occurred while installing rmagick (2.13.2), and Bundler cannot
continue.
Make sure that `gem install rmagick -v '2.13.2'` succeeds before bundling.


ぬぬ。先にconfig/database.yml を設定しろというメッセージと、rmagickでエラーが、、、

＜続く＞

rails 4のアンインストール

Railsを3.x系にダウングレードするために、いったんRailsをアンインストールすることに

あっさり

gem uninstall rails

でＯＫと思ったが、gemはアンインストール成功メッセージを出すし、gem search -lで見つからないのだが、rails -vを実行するとちゃんと

Rails 4.0.0

とかえってくる。。。

で、もっと調べてみたところ、"gem uninstall rails"ではだめらしく、

gem uninstall railties -v '4.0.0'

とする必要があるらしい。いろんなところに落とし穴があるなと。。。


アンインストールできたので、3.2.14をインストール

~$ rvmsudo gem install rails -v '3.2.14'
Fetching: activesupport-3.2.14.gem (100%)
Fetching: builder-3.0.4.gem (100%)
Fetching: activemodel-3.2.14.gem (100%)
Fetching: rack-1.4.5.gem (100%)
Fetching: rack-cache-1.2.gem (100%)
Fetching: journey-1.0.4.gem (100%)
Fetching: sprockets-2.2.2.gem (100%)
Fetching: actionpack-3.2.14.gem (100%)
Fetching: arel-3.0.2.gem (100%)
Fetching: activerecord-3.2.14.gem (100%)
Fetching: activeresource-3.2.14.gem (100%)
Fetching: actionmailer-3.2.14.gem (100%)
Fetching: rack-ssl-1.3.3.gem (100%)
Fetching: json-1.8.1.gem (100%)
Building native extensions. This could take a while...
Fetching: rdoc-3.12.2.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-3.2.14.gem (100%)
Fetching: rails-3.2.14.gem (100%)
Successfully installed activesupport-3.2.14
Successfully installed builder-3.0.4
Successfully installed activemodel-3.2.14
Successfully installed rack-1.4.5
Successfully installed rack-cache-1.2
Successfully installed journey-1.0.4
Successfully installed sprockets-2.2.2
Successfully installed actionpack-3.2.14
Successfully installed arel-3.0.2
Successfully installed activerecord-3.2.14
Successfully installed activeresource-3.2.14
Successfully installed actionmailer-3.2.14
Successfully installed rack-ssl-1.3.3
Successfully installed json-1.8.1
Successfully installed rdoc-3.12.2
Successfully installed railties-3.2.14
Successfully installed rails-3.2.14
17 gems installed
Installing ri documentation for activesupport-3.2.14...
Installing ri documentation for builder-3.0.4...
Installing ri documentation for activemodel-3.2.14...
Installing ri documentation for rack-1.4.5...
Installing ri documentation for rack-cache-1.2...
Installing ri documentation for journey-1.0.4...
Installing ri documentation for sprockets-2.2.2...
Installing ri documentation for actionpack-3.2.14...
Installing ri documentation for arel-3.0.2...
Installing ri documentation for activerecord-3.2.14...
Installing ri documentation for activeresource-3.2.14...
Installing ri documentation for actionmailer-3.2.14...
Installing ri documentation for rack-ssl-1.3.3...
Installing ri documentation for json-1.8.1...
Installing ri documentation for rdoc-3.12.2...
Installing ri documentation for railties-3.2.14...
Installing ri documentation for rails-3.2.14...
Installing RDoc documentation for activesupport-3.2.14...
Installing RDoc documentation for builder-3.0.4...
Installing RDoc documentation for activemodel-3.2.14...
Installing RDoc documentation for rack-1.4.5...
Installing RDoc documentation for rack-cache-1.2...
Installing RDoc documentation for journey-1.0.4...
Installing RDoc documentation for sprockets-2.2.2...
Installing RDoc documentation for actionpack-3.2.14...
Installing RDoc documentation for arel-3.0.2...
Installing RDoc documentation for activerecord-3.2.14...
Installing RDoc documentation for activeresource-3.2.14...
Installing RDoc documentation for actionmailer-3.2.14...
Installing RDoc documentation for rack-ssl-1.3.3...
Installing RDoc documentation for json-1.8.1...
Installing RDoc documentation for rdoc-3.12.2...
Installing RDoc documentation for railties-3.2.14...
Installing RDoc documentation for rails-3.2.14...

Ruby on railsのインストール @root

さっそく、システムにrvmでrubyを入れてみる。

最終的には、apache + passenger、あとDBはpostgresでredmineあたりを用意してみようと思う。

~# curl -L https://get.rvm.io | bash -s stable

・・・

Creating group 'rvm'

Installing RVM to /usr/local/rvm/
Installation of RVM in /usr/local/rvm/ is almost complete:

* First you need to add all users that will be using rvm to 'rvm' group,
and logout - login again, anyone using rvm will be operating with `umask u=rwx,g=rwx,o=rx`.

* To start using RVM you need to run `source /etc/profile.d/rvm.sh`
in all your open shell windows, in rare cases you need to reopen all shell windows.

# Administrator,
#
# Thank you for using RVM!
# We sincerely hope that RVM helps to make your life easier and more enjoyable!!!
#
# ~Wayne, Michal & team.

In case of problems: http://rvm.io/help
Help RVM 2.0: https://www.bountysource.com/fundraisers/489-rvm-2-0


ふむふむ。/usr/local/rvm/にインストールされた模様。
/etc/groupを見るとrvmグループも追加されているので、ここに使用するユーザを追加するのね。

さて、この後はどうするか。。。と、先駆者の方の情報を探す。

ここを参考にさせていただこう。

これまでのアカウントではすでにrvmをローカルに入れてたので、rvmを使うとそっちを向いてしまってるみたい。
.bashrcとかから該当しそうなコードをコメントアウトしたのだが、うまくいかない。

なので新しいアカウントを作成。参考元では、.bash_profieに以下を記入しないと動かないと書いてたのですが、書かなくても動作しました。rvmが新しいからかな？

[[ -s "/usr/local/rvm/scripts/rvm" ]] && . "/usr/local/rvm/scripts/rvm" # Load RVM function


~$ rvmsudo gem install rails
Warning: can not check `/etc/sudoers` for `secure_path`, falling back to call via `/usr/bin/env`, this breaks rules from `/etc/sudoers`. Run:

export rvmsudo_secure_path=1

to avoid the warning, put it in shell initialization file to make it persistent.

In case there is no `secure_path` in `/etc/sudoers`. Run:

export rvmsudo_secure_path=0

to avoid the warning, put it in shell initialization file to make it persistent

なにやらメッセージが出てきたので、対応しておく。

~$ rvmsudo gem install rails
Fetching: i18n-0.6.5.gem (100%)
Fetching: multi_json-1.8.2.gem (100%)
Fetching: tzinfo-0.3.38.gem (100%)
Fetching: minitest-4.7.5.gem (100%)
Fetching: atomic-1.1.14.gem (100%)
Building native extensions. This could take a while...
Fetching: thread_safe-0.1.3.gem (100%)
Fetching: activesupport-4.0.0.gem (100%)
Fetching: builder-3.1.4.gem (100%)
Fetching: rack-1.5.2.gem (100%)
Fetching: rack-test-0.6.2.gem (100%)
Fetching: erubis-2.7.0.gem (100%)
Fetching: actionpack-4.0.0.gem (100%)
Fetching: activemodel-4.0.0.gem (100%)
Fetching: arel-4.0.1.gem (100%)
Fetching: activerecord-deprecated_finders-1.0.3.gem (100%)
Fetching: activerecord-4.0.0.gem (100%)
Fetching: mime-types-1.25.gem (100%)
Fetching: polyglot-0.3.3.gem (100%)
Fetching: treetop-1.4.15.gem (100%)
Fetching: mail-2.5.4.gem (100%)
Fetching: actionmailer-4.0.0.gem (100%)
Fetching: thor-0.18.1.gem (100%)
Fetching: railties-4.0.0.gem (100%)
Fetching: hike-1.2.3.gem (100%)
Fetching: tilt-1.4.1.gem (100%)
Fetching: sprockets-2.10.0.gem (100%)
Fetching: sprockets-rails-2.0.1.gem (100%)
Fetching: rails-4.0.0.gem (100%)
Successfully installed i18n-0.6.5
Successfully installed multi_json-1.8.2
Successfully installed tzinfo-0.3.38
Successfully installed minitest-4.7.5
Successfully installed atomic-1.1.14
Successfully installed thread_safe-0.1.3
Successfully installed activesupport-4.0.0
Successfully installed builder-3.1.4
Successfully installed rack-1.5.2
Successfully installed rack-test-0.6.2
Successfully installed erubis-2.7.0
Successfully installed actionpack-4.0.0
Successfully installed activemodel-4.0.0
Successfully installed arel-4.0.1
Successfully installed activerecord-deprecated_finders-1.0.3
Successfully installed activerecord-4.0.0
Successfully installed mime-types-1.25
Successfully installed polyglot-0.3.3
Successfully installed treetop-1.4.15
Successfully installed mail-2.5.4
Successfully installed actionmailer-4.0.0
Successfully installed thor-0.18.1
Successfully installed railties-4.0.0
Successfully installed hike-1.2.3
Successfully installed tilt-1.4.1
Successfully installed sprockets-2.10.0
Successfully installed sprockets-rails-2.0.1
Successfully installed rails-4.0.0
28 gems installed
Installing ri documentation for i18n-0.6.5...
Installing ri documentation for multi_json-1.8.2...
Installing ri documentation for tzinfo-0.3.38...
Installing ri documentation for minitest-4.7.5...
Installing ri documentation for atomic-1.1.14...
Installing ri documentation for thread_safe-0.1.3...
Installing ri documentation for activesupport-4.0.0...
Installing ri documentation for builder-3.1.4...
Installing ri documentation for rack-1.5.2...
Installing ri documentation for rack-test-0.6.2...
Installing ri documentation for erubis-2.7.0...
Installing ri documentation for actionpack-4.0.0...
Installing ri documentation for activemodel-4.0.0...
Installing ri documentation for arel-4.0.1...
Installing ri documentation for activerecord-deprecated_finders-1.0.3...
Installing ri documentation for activerecord-4.0.0...
Installing ri documentation for mime-types-1.25...
Installing ri documentation for polyglot-0.3.3...
Installing ri documentation for treetop-1.4.15...
Installing ri documentation for mail-2.5.4...
Installing ri documentation for actionmailer-4.0.0...
Installing ri documentation for thor-0.18.1...
Installing ri documentation for railties-4.0.0...
Installing ri documentation for hike-1.2.3...
Installing ri documentation for tilt-1.4.1...
Installing ri documentation for sprockets-2.10.0...
Installing ri documentation for sprockets-rails-2.0.1...
Installing ri documentation for rails-4.0.0...
file 'lib' not found
Installing RDoc documentation for i18n-0.6.5...
Installing RDoc documentation for multi_json-1.8.2...
Installing RDoc documentation for tzinfo-0.3.38...
Installing RDoc documentation for minitest-4.7.5...
Installing RDoc documentation for atomic-1.1.14...
Installing RDoc documentation for thread_safe-0.1.3...
Installing RDoc documentation for activesupport-4.0.0...
Installing RDoc documentation for builder-3.1.4...
Installing RDoc documentation for rack-1.5.2...
Installing RDoc documentation for rack-test-0.6.2...
Installing RDoc documentation for erubis-2.7.0...
Installing RDoc documentation for actionpack-4.0.0...
Installing RDoc documentation for activemodel-4.0.0...
Installing RDoc documentation for arel-4.0.1...
Installing RDoc documentation for activerecord-deprecated_finders-1.0.3...
Installing RDoc documentation for activerecord-4.0.0...
Installing RDoc documentation for mime-types-1.25...
Installing RDoc documentation for polyglot-0.3.3...
Installing RDoc documentation for treetop-1.4.15...
Installing RDoc documentation for mail-2.5.4...
Installing RDoc documentation for actionmailer-4.0.0...
Installing RDoc documentation for thor-0.18.1...
Installing RDoc documentation for railties-4.0.0...
Installing RDoc documentation for hike-1.2.3...
Installing RDoc documentation for tilt-1.4.1...
Installing RDoc documentation for sprockets-2.10.0...
Installing RDoc documentation for sprockets-rails-2.0.1...
Installing RDoc documentation for rails-4.0.0...
file 'lib' not found

で、ふと思う。4.0.0入れちゃダメじゃん。Redmineって対応してなかったような・・・。

今夜は遅いので、対応はまた次、

Ruby on railsのインストール

さて、今日はrubyの環境とRuby on railsを入れておこう。

ここを参考に。

ちょっと書いてある内容と差分があったのでメモ

1) rvm requirements

以下のように必要なパッケージを自動でインストールしてくれた

~$ rvm requirements
Checking requirements for ubuntu.
Installing requirements for ubuntu.
Updating system..........................................................................................................
Installing required packages: gawk, g++, libreadline6-dev, zlib1g-dev, libssl-dev, libyaml-dev, libsqlite3-dev, sqlite3, autoconf, libgdbm-dev, libncurses5-dev, automake, libtool, bison, libffi-dev..................................................................................................................................
Requirements installation successful.


2) rubyのインストール

rubyのサイトを見るとまだ安定版は1.9.3のようなので、1.9.3をインストール。

~$ rvm install 1.9.3

かなり時間がかかると書いてましたが、数分程度でした。

~$ ruby -v
ruby 1.9.3p448 (2013-06-27 revision 41675) [x86_64-linux]


3) gemsのインストール

~$ gem -v
2.1.10


4) railsのインストール

これはちょっと時間がかかる。

~$ gem install rails
Fetching: i18n-0.6.5.gem (100%)
Successfully installed i18n-0.6.5
Fetching: multi_json-1.8.2.gem (100%)
Successfully installed multi_json-1.8.2
Fetching: tzinfo-0.3.38.gem (100%)
Successfully installed tzinfo-0.3.38
Fetching: minitest-4.7.5.gem (100%)
Successfully installed minitest-4.7.5
Fetching: atomic-1.1.14.gem (100%)
Building native extensions. This could take a while...
Successfully installed atomic-1.1.14
Fetching: thread_safe-0.1.3.gem (100%)
Successfully installed thread_safe-0.1.3
Fetching: activesupport-4.0.0.gem (100%)
Successfully installed activesupport-4.0.0
Fetching: builder-3.1.4.gem (100%)
Successfully installed builder-3.1.4
Fetching: rack-1.5.2.gem (100%)
Successfully installed rack-1.5.2
Fetching: rack-test-0.6.2.gem (100%)
Successfully installed rack-test-0.6.2
Fetching: erubis-2.7.0.gem (100%)
Successfully installed erubis-2.7.0
Fetching: actionpack-4.0.0.gem (100%)
Successfully installed actionpack-4.0.0
Fetching: activemodel-4.0.0.gem (100%)
Successfully installed activemodel-4.0.0
Fetching: arel-4.0.1.gem (100%)
Successfully installed arel-4.0.1
Fetching: activerecord-deprecated_finders-1.0.3.gem (100%)
Successfully installed activerecord-deprecated_finders-1.0.3
Fetching: activerecord-4.0.0.gem (100%)
Successfully installed activerecord-4.0.0
Fetching: mime-types-1.25.gem (100%)
Successfully installed mime-types-1.25
Fetching: polyglot-0.3.3.gem (100%)
Successfully installed polyglot-0.3.3
Fetching: treetop-1.4.15.gem (100%)
Successfully installed treetop-1.4.15
Fetching: mail-2.5.4.gem (100%)
Successfully installed mail-2.5.4
Fetching: actionmailer-4.0.0.gem (100%)
Successfully installed actionmailer-4.0.0
Fetching: thor-0.18.1.gem (100%)
Successfully installed thor-0.18.1
Fetching: railties-4.0.0.gem (100%)
Successfully installed railties-4.0.0
Fetching: hike-1.2.3.gem (100%)
Successfully installed hike-1.2.3
Fetching: tilt-1.4.1.gem (100%)
Successfully installed tilt-1.4.1
Fetching: sprockets-2.10.0.gem (100%)
Successfully installed sprockets-2.10.0
Fetching: sprockets-rails-2.0.1.gem (100%)
Successfully installed sprockets-rails-2.0.1
Fetching: rails-4.0.0.gem (100%)
Successfully installed rails-4.0.0
Installing ri documentation for actionmailer-4.0.0
Installing ri documentation for actionpack-4.0.0
Installing ri documentation for activemodel-4.0.0
Installing ri documentation for activerecord-4.0.0
Installing ri documentation for activerecord-deprecated_finders-1.0.3
Installing ri documentation for activesupport-4.0.0
Installing ri documentation for arel-4.0.1
Installing ri documentation for atomic-1.1.14
unable to convert "\xF1" from ASCII-8BIT to UTF-8 for test/performance.rb, skipping
Installing ri documentation for builder-3.1.4
Installing ri documentation for erubis-2.7.0
Installing ri documentation for hike-1.2.3
Installing ri documentation for i18n-0.6.5
Installing ri documentation for mail-2.5.4
Installing ri documentation for mime-types-1.25
Installing ri documentation for minitest-4.7.5
Installing ri documentation for multi_json-1.8.2
Installing ri documentation for polyglot-0.3.3
unable to convert "\x89" from ASCII-8BIT to UTF-8 for test/multipart/binary, skipping
Installing ri documentation for rack-1.5.2
Installing ri documentation for rack-test-0.6.2
Installing ri documentation for rails-4.0.0
Installing ri documentation for railties-4.0.0
Installing ri documentation for sprockets-2.10.0
Installing ri documentation for sprockets-rails-2.0.1
Installing ri documentation for thor-0.18.1
Installing ri documentation for thread_safe-0.1.3
Installing ri documentation for tilt-1.4.1
Installing ri documentation for treetop-1.4.15
Installing ri documentation for tzinfo-0.3.38
28 gems installed


なんか、ASCII-8BIT から UTF-8 の変換ができんとかいってるけど、無視かな。

~$ rails -v
Rails 4.0.0

おっと、今だと4.0.0がインストールされるのか。

＜終了＞

と、ここまで２０分程度。すごく簡単に完了。依存関係とかで結構はまった経験があるのだが、rvmからの手順だとあったりなのね。それともubuntuだからなのか？

先々は、apache + passengaerで動かそうと思ってる。rvmだと個人の環境にインストールされるが、システムへのインストールとかもできるのかなとおもって調べたら、rootで入れれば/usr/local/rvmにインストールされるのね。便利ねぇ。