如何在 Ubuntu 12.04 上正确安装 ruby 2.0.0？
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How do I install ruby 2.0.0 correctly on Ubuntu 12.04?
提问by Kashiftufail
I have successfully installed rvm, but when I run the following commands
我已经成功安装rvm，但是当我运行以下命令时
sudo apt-get update
Or:
或者：
rvm install 2.0.0
I have the following errors:
我有以下错误：
W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/source/Sources 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/cheleb/blender-svn/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/source/Sources 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/ferramroberto/oneiric/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found
How can I fix these errors?
我该如何修复这些错误？
回答by Pravin Mishra
follow below steps
请按照以下步骤操作
sudo apt-get -y update
sudo apt-get -y install build-essential zlib1g-dev libssl-dev libreadline6-dev libyaml-dev
cd /tmp
wget http://cache.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p481.tar.gz
tar -xvzf ruby-2.0.0-p481.tar.gz
cd ruby-2.0.0-p481/
./configure --prefix=/usr/local
make
sudo make install
回答by gmuraleekrishna
Use rvmto install stable ruby:
使用rvm安装稳定红宝石：
curl -sSL https://get.rvm.io | bash -s stable --ruby
or, if you have rvm already, get stable version:
或者，如果您已经有 rvm，请获取稳定版本：
rvm get stable
Install ruby and use the specific version of ruby (remember to use login shell)
安装ruby并使用特定版本的ruby（记得使用登录shell）
/bin/bash --login
rvm install 2.0.0
rvm use 2.0.0
rvm rubygems latest
ruby --version
As found on the official RVM website.
正如在官方 RVM 网站上找到的那样。
EDIT: As @prem points out run this at first and follow the above steps if there is a public key error
编辑：正如@prem 指出的那样，首先运行它，如果出现公钥错误，请按照上述步骤操作
gpg --keyserver hkp://keys.gnupg.net --recv-keys \ 409B6B1796C275462A1703113804BB82D39DC0E3
gpg --keyserver hkp://keys.gnupg.net --recv-keys \ 409B6B1796C275462A1703113804BB82D39DC0E3
Use rbenvto install ruby:
使用rbenv安装Ruby：
Install necessary dependancies:
安装必要的依赖：
sudo apt-get update && sudo apt-get install git-core curl zlib1g-dev \
build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev \
sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev \
python-software-properties libffi-dev
Install rbenv:
安装rbenv：
cd
git clone git://github.com/sstephenson/rbenv.git .rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bash_profile
source ~/.bash_profile
Install ruby:
安装红宝石：
rbenv install -v 2.0.0
回答by ThorSummoner
From the travis-cli installation instructions for Ubuntu, the Brightbox Ruby NG(NextGeneration)ppa:
来自travis-cli Ubuntu 的安装说明，Brightbox Ruby NG(NextGeneration)ppa：
$ sudo apt-get install python-software-properties
$ sudo apt-add-repository ppa:brightbox/ruby-ng
$ sudo apt-get update
$ sudo apt-get install ruby2.1 ruby-switch
$ sudo ruby-switch --set ruby2.1
回答by Dirk Conrad Coetsee
Although this answer was accepted, I would strongly recommend using rvm rather. I had nothing but trouble trying to install ruby without it. See e.g. this guide:
尽管此答案已被接受，但我强烈建议您使用 rvm。我在没有它的情况下尝试安装 ruby 时遇到了麻烦。参见例如本指南：
回答by duma
Any easy way to install ruby is with ruby-install. I had compile errors when building ruby from scratch, but ruby-installencountered no such problems.
安装 ruby 的任何简单方法都是使用ruby-install。我在从头开始构建 ruby 时ruby-install遇到了编译错误，但没有遇到这样的问题。
edit:I've had problems with rvmin the past, and feel I should actively recommend against this. That's just me personally, though. I've had okay luck with rbenv, but always use it in conjunction with ruby-install.
编辑：我过去遇到过问题rvm，觉得我应该积极反对这个。不过，这只是我个人。我的运气还不错rbenv，但总是与ruby-install.
回答by automan
You have some ppa sources enabled that aren't available for your version of Ubuntu. Comment those out in your /etc/apt/sources.list , run sudo apt-get update , and you'll be fine.
您启用了一些 ppa 源，这些源不适用于您的 Ubuntu 版本。在你的 /etc/apt/sources.list 中注释掉那些，运行 sudo apt-get update ，你会没事的。
回答by borracciaBlu
Use rbenv
使用rbenv
The first step is to install some dependencies for Ruby.
第一步是为 Ruby 安装一些依赖项。
sudo apt-get update
sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties
Installing with rbenvis a simple two step process. First you install rbenv, and then ruby-build:
使用rbenv安装是一个简单的两步过程。首先安装rbenv，然后安装ruby-build：
cd
git clone git://github.com/sstephenson/rbenv.git .rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
exec $SHELL
git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bashrc
exec $SHELL
rbenv install 2.0.0
rbenv global 2.0.0
ruby -v
