gitLab centos6.7安装问题
我的系统是Centos6.7的，我完全按照文档：https://gitlab.com/gitlab-org/gitlab-recipes/tree/master/install/centos，来进行安装。
当进行到Gems的安装步骤时，出问题了。
cd /home/git/gitlab
# For PostgreSQL (note, the option says "without ... mysql")
sudo -u git -H bundle config build.pg --with-pg-config=/usr/pgsql-9.3/bin/pg_config
sudo -u git -H bundle install --deployment --without development test mysql aws执行：sudo -u git -H bundle install --deployment --without development test mysql aws,报错提示：
An error occurred while installing charlock_holmes (0.6.9.4), and Bundler cannot continue.
Make sure that `gem install charlock_holmes -v '0.6.9.4'` succeeds before bundling.然后按照提示，安装charlock_holmes：
gem install charlock_holmes -v '0.6.9.4'安装成功，执行gem list可以看到：
*** LOCAL GEMS ***
bigdecimal (1.2.4)
bundler (1.11.2)
charlock_holmes (0.6.9.4)
....然后重新执行命令：
sudo -u git -H bundle install --deployment --without development test mysql aws结果还是报错，说没有安装charlock_holmes :
An error occurred while installing charlock_holmes (0.6.9.4), and Bundler cannot continue.
Make sure that `gem install charlock_holmes -v '0.6.9.4'` succeeds before bundling.实际上charlock_holmes已经安装成功了。
当然除了这个报错，我还看到安装过程中的报错信息，分别有两条，可能跟权限有关系：
Installing charlock_holmes 0.6.9.4 with native extensions
Errno::EACCES: Permission denied @ rb_sysopen - /home/git/gitlab/vendor/bundle/ruby/2.1.0/gems/charlock_holmes-0.6.9.4/.gitignoreInstalling rugged 0.21.2 with native extensions
Errno::EACCES: Permission denied @ rb_sysopen - /home/git/gitlab/vendor/bundle/ruby/2.1.0/gems/rugged-0.21.2/LICENSE请问，这是什么原因？
