ubuntu安装rvm

1.ubuntu上安装rvm

1. curl -L get.rvm.io | bash -s stable
2. gpg2 --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
3. curl -L get.rvm.io | bash -s stable
4. source /usr/local/rvm/scripts/rvm
5. rvm list known

执行1遇到Failed to connect to raw.githubusercontent.com port 443

sudo vi /etc/hosts 添加

# GitHub Start
52.74.223.119 github.com
192.30.253.119 gist.github.com
54.169.195.247 api.github.com
185.199.111.153 assets-cdn.github.com
151.101.76.133 raw.githubusercontent.com
151.101.108.133 user-images.githubusercontent.com
151.101.76.133 gist.githubusercontent.com
151.101.76.133 cloud.githubusercontent.com
151.101.76.133 camo.githubusercontent.com
151.101.76.133 avatars0.githubusercontent.com
151.101.76.133 avatars1.githubusercontent.com
151.101.76.133 avatars2.githubusercontent.com
151.101.76.133 avatars3.githubusercontent.com
151.101.76.133 avatars4.githubusercontent.com
151.101.76.133 avatars5.githubusercontent.com
151.101.76.133 avatars6.githubusercontent.com
151.101.76.133 avatars7.githubusercontent.com
151.101.76.133 avatars8.githubusercontent.com
# GitHub End

执行2遇到公钥问题

预先执行gpg2 --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB

2.安装

rvm install 2.5（安装 ruby 2.5）
gem install capistrano（安装 capistrano，gem 类似于 composer）

问题：

It seems that there are some 404 Not Found errors for repositories listed in:/etc/apt/sources.list/etc/apt/sources.list.d/*.listMake sure that all repositories are available from your system and verify your setup by running manually:sudo apt-get updateMake sure that it works correctly before proceeding with RVM.If you are working from the GUI instead of the terminal, you might want to verify and fix broken
repositories using "Software & Updates" application.

解决：执行apt-get update 查看哪些ppa不可用，去/etc/apt/sources.list或/etc/apt/sources.list.d/*.list删除
执行apt-get update --fix-missing

Traceback (most recent call last):
1: from internal:gem_prelude:1:in <internal:gem_prelude>' <internal:gem_prelude>:1:inrequire’: cannot load such file – rubygems.rb (LoadError)

解决方法

rvm fix-permissions

rvm reinstall 2.1.2

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ubuntu安装rvm

1.ubuntu上安装rvm

2.安装

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