我正在尝试关注数字海洋博客，在ubuntu 14.04上安装rails。我之前在使用相同命令的不同系统上安装了它，但这次它给出了错误。
一旦我跑了
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
我得到以下内容：
gpg: requesting key D39DC0E3 from hkp server keys.gnupg.net
?: keys.gnupg.net: Host not found
gpgkeys: HTTP fetch error 7: couldn't connect: Success
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
接下来当我跑：
\curl -sSL https://get.rvm.io | bash -s stable --rails
我正在追随：
Downloading https://github.com/rvm/rvm/archive/1.29.1.tar.gz
Downloading https://github.com/rvm/rvm/releases/download/1.29.1/1.29.1.tar.gz.asc
Found PGP signature at: 'https://github.com/rvm/rvm/releases/download/1.29.1/1.29.1.tar.gz.asc',
but no GPG software exists to validate it, skipping.
Upgrading the RVM installation in /home/shivraj/.rvm/
stat: cannot stat ‘/<gconf>/ a<entry name='login_shell' mtime='1497974547' type='bool' value='true'/>’: No such file or directory
stat: cannot stat ‘/<gconf>/ a<entry name='login_shell' mtime='1497974547' type='bool' value='true'/>’: No such file or directory
RVM PATH line found in /home/shivraj/.mkshrc /home/shivraj/.profile /home/shivraj/.bashrc /home/shivraj/.zshrc.
RVM sourcing line found in /home/shivraj/.profile /home/shivraj/.bash_profile /home/shivraj/.zlogin.
Upgrade of RVM in /home/shivraj/.rvm/ is complete.
当我尝试检查rvm list未安装时，它们都没有。