さくらVPS:rootユーザー用にRubyとRailsをインストール

rvmとRubyのインストール

前回は、作業用ユーザーの環境に rvm と Ruby をインストールしたけど、今回は root ユーザーの環境にインストールする。ま、このへんは基本的に前回と同じ作業なので、簡単に。rvm のインストールから。

[root@www2465uo takatoh]# curl -L https://get.rvm.io | bash -s stable
[root@www2465uo takatoh]# source /etc/profile.d/rvm.sh

rvm list known でインストール可能なバージョンが見られる。

[root@www2465uo takatoh]# rvm list known
# MRI Rubies
[ruby-]1.8.6[-p420]
[ruby-]1.8.7[-head] # security released on head
[ruby-]1.9.1[-p431]
[ruby-]1.9.2[-head] # security released on head
[ruby-]1.9.3[-p547]
[ruby-]2.0.0-p451
[ruby-]2.0.0[-p481]
[ruby-]2.1.1
[ruby-]2.1[.2]
[ruby-]2.1-head
ruby-head

# GoRuby
goruby

# Topaz
topaz

# TheCodeShop - MRI experimental patches
tcs

# jamesgolick - All around gangster
jamesgolick

# Minimalistic ruby implementation - ISO 30170:2012
mruby[-head]

# JRuby
jruby-1.6.8
jruby[-1.7.13]
jruby-head

# Rubinius
rbx-1.3.3
rbx-2.0.0
rbx-2.1.1
rbx[-2.2.10]
rbx-head

# Ruby Enterprise Edition
ree-1.8.6
ree[-1.8.7][-2012.02]

# Kiji
kiji

# MagLev
maglev[-head]
maglev-1.0.0

# Mac OS X Snow Leopard Or Newer
macruby-0.10
macruby-0.11
macruby[-0.12]
macruby-nightly
macruby-head

# Opal
opal

# IronRuby
ironruby[-1.1.3]
ironruby-head

Ruby 2.0.0 をインストール。

[root@www2465uo takatoh]# rvm install 2.0.0
[root@www2465uo takatoh]# ruby -v
ruby 2.0.0p481 (2014-05-08 revision 45883) [x86_64-linux]
[root@www2465uo takatoh]# which ruby
/usr/local/rvm/rubies/ruby-2.0.0-p481/bin/ruby

へえ、root ユーザーでインストールすると /usr/local 以下にインストールされるんだ。

Ruby on Railsのインストール

[root@www2465uo takatoh]# gem install rails

長々とメッセージが出ていっぱいインストールされる。

サンプルアプリの作成

とりあえず Rails でアプリを作ってみる。

[root@www2465uo takatoh]# rails new myapp -d mysql
      create  
      create  README.rdoc
      create  Rakefile
      create  config.ru
      create  .gitignore
      create  Gemfile
      create  app
      create  app/assets/javascripts/application.js
      create  app/assets/stylesheets/application.css
      create  app/controllers/application_controller.rb
      create  app/helpers/application_helper.rb
      create  app/views/layouts/application.html.erb
      create  app/assets/images/.keep
      create  app/mailers/.keep
      create  app/models/.keep
      create  app/controllers/concerns/.keep
      create  app/models/concerns/.keep
      create  bin
      create  bin/bundle
      create  bin/rails
      create  bin/rake
      create  config
      create  config/routes.rb
      create  config/application.rb
      create  config/environment.rb
      create  config/secrets.yml
      create  config/environments
      create  config/environments/development.rb
      create  config/environments/production.rb
      create  config/environments/test.rb
      create  config/initializers
      create  config/initializers/assets.rb
      create  config/initializers/backtrace_silencers.rb
      create  config/initializers/cookies_serializer.rb
      create  config/initializers/filter_parameter_logging.rb
      create  config/initializers/inflections.rb
      create  config/initializers/mime_types.rb
      create  config/initializers/session_store.rb
      create  config/initializers/wrap_parameters.rb
      create  config/locales
      create  config/locales/en.yml
      create  config/boot.rb
      create  config/database.yml
      create  db
      create  db/seeds.rb
      create  lib
      create  lib/tasks
      create  lib/tasks/.keep
      create  lib/assets
      create  lib/assets/.keep
      create  log
      create  log/.keep
      create  public
      create  public/404.html
      create  public/422.html
      create  public/500.html
      create  public/favicon.ico
      create  public/robots.txt
      create  test/fixtures
      create  test/fixtures/.keep
      create  test/controllers
      create  test/controllers/.keep
      create  test/mailers
      create  test/mailers/.keep
      create  test/models
      create  test/models/.keep
      create  test/helpers
      create  test/helpers/.keep
      create  test/integration
      create  test/integration/.keep
      create  test/test_helper.rb
      create  tmp/cache
      create  tmp/cache/assets
      create  vendor/assets/javascripts
      create  vendor/assets/javascripts/.keep
      create  vendor/assets/stylesheets
      create  vendor/assets/stylesheets/.keep
         run  bundle install
Don't run Bundler as root. Bundler can ask for sudo if it is needed, and
installing your bundle as root will break this application for all non-root
users on this machine.
Fetching gem metadata from https://rubygems.org/...........
Resolving dependencies...
Using rake 10.3.2
Using i18n 0.6.11
Using json 1.8.1
Using minitest 5.4.0
Using thread_safe 0.3.4
Using tzinfo 1.2.2
Using activesupport 4.1.4
Using builder 3.2.2
Using erubis 2.7.0
Using actionview 4.1.4
Using rack 1.5.2
Using rack-test 0.6.2
Using actionpack 4.1.4
Using mime-types 1.25.1
Using polyglot 0.3.5
Using treetop 1.4.15
Using mail 2.5.4
Using actionmailer 4.1.4
Using activemodel 4.1.4
Using arel 5.0.1.20140414130214
Using activerecord 4.1.4
Using bundler 1.6.2
Using coffee-script-source 1.7.1
Using execjs 2.2.1
Using coffee-script 2.3.0
Using thor 0.19.1
Using railties 4.1.4
Using coffee-rails 4.0.1
Using hike 1.2.3
Using multi_json 1.10.1
Using jbuilder 2.1.3
Using jquery-rails 3.1.1

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /usr/local/rvm/rubies/ruby-2.0.0-p481/bin/ruby extconf.rb 
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /usr/bin/mysql_config
-----
checking for mysql.h... no
checking for mysql/mysql.h... no
-----
mysql.h is missing.  please check your installation of mysql and try again.
-----
*** 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-2.0.0-p481/bin/ruby
	--with-mysql-dir
	--without-mysql-dir
	--with-mysql-include
	--without-mysql-include=${mysql-dir}/include
	--with-mysql-lib
	--without-mysql-lib=${mysql-dir}/
	--with-mysql-config
	--without-mysql-config

extconf failed, exit code 1

Gem files will remain installed in /usr/local/rvm/gems/ruby-2.0.0-p481/gems/mysql2-0.3.16 for inspection.
Results logged to /usr/local/rvm/gems/ruby-2.0.0-p481/extensions/x86_64-linux/2.0.0/mysql2-0.3.16/gem_make.out
An error occurred while installing mysql2 (0.3.16), and Bundler cannot continue.
Make sure that gem install mysql2 -v '0.3.16' succeeds before bundling.
         run  bundle exec spring binstub --all
/usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/resolver.rb:352:in resolve': Could not find gem 'mysql2 (>= 0) ruby' in the gems available on this machine. (Bundler::GemNotFound)
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/resolver.rb:165:in start'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/resolver.rb:129:in resolve'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/definition.rb:203:in resolve'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/definition.rb:133:in specs'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/definition.rb:178:in specs_for'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/definition.rb:167:in requested_specs'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/environment.rb:18:in requested_specs'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/runtime.rb:13:in setup'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler.rb:120:in setup'
	from /usr/local/rvm/gems/ruby-2.0.0-p481@global/gems/bundler-1.6.2/lib/bundler/setup.rb:17:in '
	from /usr/local/rvm/rubies/ruby-2.0.0-p481/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in require'
	from /usr/local/rvm/rubies/ruby-2.0.0-p481/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in require'

おや、何かエラーが出た。mysql2 の gem がインストールできてないみたいだ。じゃ、直接インストールしてみるか。

[root@www2465uo takatoh]# gem install mysql2 -v '0.3.16'
Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
	ERROR: Failed to build gem native extension.

    /usr/local/rvm/rubies/ruby-2.0.0-p481/bin/ruby extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
-----
Using mysql_config at /usr/bin/mysql_config
-----
checking for mysql.h... no
checking for mysql/mysql.h... no
-----
mysql.h is missing.  please check your installation of mysql and try again.
-----
*** 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-2.0.0-p481/bin/ruby
	--with-mysql-dir
	--without-mysql-dir
	--with-mysql-include
	--without-mysql-include=${mysql-dir}/include
	--with-mysql-lib
	--without-mysql-lib=${mysql-dir}/
	--with-mysql-config
	--without-mysql-config

extconf failed, exit code 1

Gem files will remain installed in /usr/local/rvm/gems/ruby-2.0.0-p481/gems/mysql2-0.3.16 for inspection.
Results logged to /usr/local/rvm/gems/ruby-2.0.0-p481/extensions/x86_64-linux/2.0.0/mysql2-0.3.16/gem_make.out

ダメのようだね。mysql.h が見つからない、といっているらしい。

[root@www2465uo takatoh]# yum install mysql-devel
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
 * base: ftp.tsukuba.wide.ad.jp
 * epel: ftp.riken.jp
 * extras: ftp.tsukuba.wide.ad.jp
 * updates: ftp.tsukuba.wide.ad.jp
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package mysql-devel.x86_64 0:5.1.73-3.el6_5 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package            Arch          Version                  Repository      Size
================================================================================
Installing:
 mysql-devel        x86_64        5.1.73-3.el6_5           updates        129 k

Transaction Summary
================================================================================
Install       1 Package(s)

Total download size: 129 k
Installed size: 388 k
Is this ok [y/N]: y
Downloading Packages:
mysql-devel-5.1.73-3.el6_5.x86_64.rpm                    | 129 kB     00:00     
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : mysql-devel-5.1.73-3.el6_5.x86_64                            1/1 
  Verifying  : mysql-devel-5.1.73-3.el6_5.x86_64                            1/1 

Installed:
  mysql-devel.x86_64 0:5.1.73-3.el6_5                                           

Complete!

今度はどうだ。

[root@www2465uo takatoh]# cd myapp
[root@www2465uo myapp]# bundle install
Don't run Bundler as root. Bundler can ask for sudo if it is needed, and
installing your bundle as root will break this application for all non-root
users on this machine.
Fetching gem metadata from https://rubygems.org/...........
Resolving dependencies...
Using rake 10.3.2
Using i18n 0.6.11
Using json 1.8.1
Using minitest 5.4.0
Using thread_safe 0.3.4
Using tzinfo 1.2.2
Using activesupport 4.1.4
Using builder 3.2.2
Using erubis 2.7.0
Using actionview 4.1.4
Using rack 1.5.2
Using rack-test 0.6.2
Using actionpack 4.1.4
Using mime-types 1.25.1
Using polyglot 0.3.5
Using treetop 1.4.15
Using mail 2.5.4
Using actionmailer 4.1.4
Using activemodel 4.1.4
Using arel 5.0.1.20140414130214
Using activerecord 4.1.4
Using bundler 1.6.2
Using coffee-script-source 1.7.1
Using execjs 2.2.1
Using coffee-script 2.3.0
Using thor 0.19.1
Using railties 4.1.4
Using coffee-rails 4.0.1
Using hike 1.2.3
Using multi_json 1.10.1
Using jbuilder 2.1.3
Using jquery-rails 3.1.1
Installing mysql2 0.3.16
Using tilt 1.4.1
Using sprockets 2.11.0
Using sprockets-rails 2.1.3
Using rails 4.1.4
Using rdoc 4.1.1
Using sass 3.2.19
Using sass-rails 4.0.3
Using sdoc 0.4.1
Using spring 1.1.3
Using turbolinks 2.2.2
Using uglifier 2.5.3
Your bundle is complete!
Use bundle show [gemname] to see where a bundled gem is installed.

OK みたい。
じゃ、アプリを起動してみよう。おっと、その前に 3000 番ポートを開けておかなきゃ。/etc/sysconfig/iptables を編集して次の行を挿入。

で、iptables を再起動。

[root@www2465uo myapp]# service iptables restart
iptables: チェインをポリシー ACCEPT へ設定中filter         [  OK  ]
iptables: ファイアウォールルールを消去中:                  [  OK  ]
iptables: モジュールを取り外し中:                          [  OK  ]
iptables: ファイアウォールルールを適用中:                  [  OK  ]

よし、アプリを起動してブラウザからアクセスしてみる。

rails-mysql2-error

あー、MySQL の方を設定してないからか。

MySQLにデータベースを作る

myapp というデータベースを作って、myapp@localhost からアクセスできるようにする。

[root@www2465uo myapp]# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 441
Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> CREATE USER myapp@localhost IDENTIFIED BY 'myapp';
Query OK, 0 rows affected (0.00 sec)

mysql> CREATE DATABASE myapp_development;
Query OK, 1 row affected (0.00 sec)

mysql> GRANT ALL ON myapp_development.* TO myapp;
Query OK, 0 rows affected (0.00 sec)

mysql> EXIT;
Bye

Railsのデータベースに関する設定

config/database.yml を編集。

Railsの起動と確認

[root@www2465uo myapp]# rake db:setup
myapp_development already exists
Mysql2::Error: Access denied for user 'myapp'@'localhost' to database 'myapp_test': CREATE DATABASE myapp_test DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in query'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in block in execute'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_adapter.rb:373:in block in log'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activesupport-4.1.4/lib/active_support/notifications/instrumenter.rb:20:in instrument'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_adapter.rb:367:in log'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:303:in execute'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/connection_adapters/mysql2_adapter.rb:228:in execute'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:371:in create_database'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/tasks/mysql_database_tasks.rb:16:in create'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/tasks/database_tasks.rb:88:in create'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/tasks/database_tasks.rb:102:in block in create_current'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/tasks/database_tasks.rb:209:in block in each_current_configuration'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/tasks/database_tasks.rb:208:in each'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/tasks/database_tasks.rb:208:in each_current_configuration'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/tasks/database_tasks.rb:101:in create_current'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/activerecord-4.1.4/lib/active_record/railties/databases.rake:17:in block (2 levels) in '
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:240:in call'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:240:in block in execute'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:235:in each'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:235:in execute'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:179:in block in invoke_with_call_chain'
/usr/local/rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/monitor.rb:211:in mon_synchronize'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:172:in invoke_with_call_chain'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:201:in block in invoke_prerequisites'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:199:in each'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:199:in invoke_prerequisites'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:178:in block in invoke_with_call_chain'
/usr/local/rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/monitor.rb:211:in mon_synchronize'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:172:in invoke_with_call_chain'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:201:in block in invoke_prerequisites'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:199:in each'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:199:in invoke_prerequisites'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:178:in block in invoke_with_call_chain'
/usr/local/rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/monitor.rb:211:in mon_synchronize'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:172:in invoke_with_call_chain'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/task.rb:165:in invoke'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:150:in invoke_task'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:106:in block (2 levels) in top_level'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:106:in each'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:106:in block in top_level'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:115:in run_with_threads'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:100:in top_level'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:78:in block in run'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:176:in standard_exception_handling'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/lib/rake/application.rb:75:in run'
/usr/local/rvm/gems/ruby-2.0.0-p481/gems/rake-10.3.2/bin/rake:33:in '
/usr/local/rvm/gems/ruby-2.0.0-p481/bin/rake:23:in load'
/usr/local/rvm/gems/ruby-2.0.0-p481/bin/rake:23:in 
' Couldn't create database for {"adapter"=>"mysql2", "encoding"=>"utf8", "pool"=>5, "username"=>"myapp", "password"=>"myapp", "socket"=>"/var/lib/mysql/mysql.sock", "database"=>"myapp_test"} /home/takatoh/myapp/db/schema.rb doesn't exist yet. Run rake db:migrate` to create it, then try again. If you do not intend to use a database, you should instead alter /home/takatoh/myapp/config/application.rb to limit the frameworks that will be loaded.

なんかいろいろメッセージが出てるけど、見ないことにする。
で、ブラウザからアクセスすると:

rails-welcome-aloard

今度はOK。

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