使用rvm安装ruby 2.0.0时权限被拒绝的问题

我搜索了很多内容，但仍然找不到原因，我确信rvm文件夹权限应该是正确的

$ rvm get stable

A RVM version 1.20.13 (master) is installed yet 1.20.13 () is loaded.
Please do one of the following:
  * 'rvm reload'
  * open a new shell
  * 'echo rvm_auto_reload_flag=1 >> ~/.rvmrc' # for auto reload with msg.
  * 'echo rvm_auto_reload_flag=2 >> ~/.rvmrc' # for silent auto reload.

并检查rvm版本：

$ rvm --version

rvm 1.20.13 (master) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]

我刚刚开始学习ROR，所以我需要面对太多的问题

---

希望你的帮助

尝试运行

sudo-rvm安装2.0.0

，如果这不起作用，只需运行

sudo-chmod a+rw-R~/.rvm

，然后再次运行

rvm安装2.0.0

。

sudo-chmod a+rw~/.rvm

$ rvm install 2.0.0

mkdir: /Users/xudannie/.rvm/log/ruby-2.0.0-p195: Permission denied
mkdir: /Users/xudannie/.rvm/log/ruby-2.0.0-p195: Permission denied

Searching for binary rubies, this might take some time.
No binary rubies available for: osx/10.7/x86_64/ruby-2.0.0-p195.
Continuing with compilation. Please read 'rvm mount' to get more information on binary rubies.
Installing requirements for osx, might require sudo password.
Certificates in '/usr/local/etc/openssl/cert.pem' already are up to date.
Installing Ruby from source to: /Users/xudannie/.rvm/rubies/ruby-2.0.0-p195, this may take a while depending on your cpu(s)...
ruby-2.0.0-p195 - #downloading ruby-2.0.0-p195, this may take a while depending on your connection...

mkdir: /Users/xudannie/.rvm/tmp/rvm_src_32045: Permission denied
mkdir: /Users/xudannie/.rvm/log/ruby-2.0.0-p195: Permission denied
tee: /Users/xudannie/.rvm/log/ruby-2.0.0-p195/1370079408_extract.log: No such file or directory
tee: /Users/xudannie/.rvm/log/ruby-2.0.0-p195/1370079408_extract.log: No such file or directory
ruby-2.0.0-p195 - #extracting ruby-2.0.0-p195 to /Users/xudannie/.rvm/src/ruby-2.0.0-p195....

Error running '__rvm_package_extract /Users/xudannie/.rvm/archives/ruby-2.0.0-p195.tar.bz2 /Users/xudannie/.rvm/tmp/rvm_src_32045',
please read /Users/xudannie/.rvm/log/ruby-2.0.0-p195/1370079408_extract.log
There has been an error while trying to extract the source. Halting the installation.
There has been an error fetching the ruby interpreter. Halting the installation.