ルビーレール上のMySQLのインストールの問題が

Question

Ubuntuは10.10

すべてが何かがmysql2と非常に間違っていた、私はプラグインをインストールしようとしたそれまではうまくいきました。私はテを取り外して、この結果でそれを再インストールしようとしました：

gem install mysql2 
Building native extensions. This could take a while... 
ERROR: Error installing mysql2: 
    ERROR: Failed to build gem native extension. 

     /home/ruben/.rvm/rubies/ruby-1.9.2-p136/bin/ruby extconf.rb 
checking for rb_thread_blocking_region()... *** 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=/home/ruben/.rvm/rubies/ruby-1.9.2-p136/bin/ruby 
/home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:368:in `try_do': The complier failed to generate an executable file. (RuntimeError) 
You have to install development tools first. 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:435:in `try_link0' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:440:in `try_link' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:552:in `try_func' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:797:in `block in have_func' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:693:in `block in checking_for' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:280:in `block (2 levels) in postpone' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:254:in `open' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:280:in `block in postpone' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:254:in `open' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:276:in `postpone' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:692:in `checking_for' 
    from /home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/mkmf.rb:796:in `have_func' 
    from extconf.rb:9:in `<main>' 


Gem files will remain installed in /home/ruben/.rvm/gems/ruby-1.9.2-p136/gems/mysql2-0.2.6 for inspection. 
Results logged to /home/ruben/.rvm/gems/ruby-1.9.2-p136/gems/mysql2-0.2.6/ext/mysql2/gem_make.out 

誰かが助けることを望みます！私のサーバー全体を再インストールする時間がありません！

Answer 1

mkmf.log ==>

"gcc -o conftest -I/home/ruben/.rvm/rubies/ruby-1.9.2-p136/include/ruby-1.9.1/i686-linux -I/home/ruben/.rvm/rubies/ruby-1.9.2-p136/include/ruby-1.9.1/ruby/backward -I/home/ruben/.rvm/rubies/ruby-1.9.2-p136/include/ruby-1.9.1 -I. -D_FILE_OFFSET_BITS=64 -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -fPIC conftest.c -L. -L/home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib -Wl,-R/home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib -L. -rdynamic -Wl,-export-dynamic  -Wl,-R -Wl,/home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib -L/home/ruben/.rvm/rubies/ruby-1.9.2-p136/lib -lruby-static -lpthread -lrt -ldl -lcrypt -lm -lc" 
checked program was: 
/* begin */ 
1: #include "ruby.h" 
2: 
3: int main() {return 0;} 
/* end */ 

Answer 2

foradian@foradian-1:~$ cd blog 
foradian@foradian-1:~/blog$ rake db:create 
(in /home/foradian/blog) 
rake aborted! 
syntax error on line 9, col 2: ` socket: /var/run/mysqld/mysqld.sock' 

(See full trace by running task with --trace) 
foradian@foradian-1:~/blog$ 

Answer 3

このようなmysqlクライアントヘッダのパッケージをインストールしてください：

sudo apt-get install libmysqlclient-dev 

あなたはビルド不可欠（sarnoldによって提案をパッケージ化必要コメントで）。ここ

もっと情報： `mkmf.log`ファイルにエラーがどのようなものかhttp://rubydoc.info/gems/mysql2/0.3.13/frames