- Installed RVM with multiple Rails version in fresh installation of Ubuntu 10.04
- This tutorial is for single use only means not root (i.e. root@gloscon-desktop:~# )
open terminal by pressing Cltr+Altr+T OR
From menu Applications -> Accessories -> Terminal
step-1
$ apt-get install curl git-core build-essential zlib1g-dev libssl-dev libreadline5-dev
step-2
$ bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)
OR
$ curl -s https://rvm.beginrescueend.com/install/rvm -o rvm-installer ; chmod +x rvm-installer ; ./rvm-installer --version latest
OR
$ bash < <(curl -sk https://rvm.beginrescueend.com/install/rvm)
step-3
$ echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >> ~/.bash_profile
step-4
restart terminal
OR
$ source .bash_profile
step-5
$ rvm | head -1
'rvm is a function'
step-6
// install Ruby 1.9.2
$ rvm install 1.9.2
$ ruby -v
step-7
// set Ruby 1.9.2 as default
$ rvm --default 1.9.2
step-8
$ gem install rails -v 3.0.3 // default rails for Ruby 1.9.2
$ rails -v
step-9
$ rvm install 1.8.7
// install Ruby 1.8.7
$ gem install rails -v 2.3.2 //default rails for Ruby 1.8.7
$ rails -v
For more about RVM with GEMSET
=> gemset is create separate workspace for different versions of rails will not conflict multiple rails versions and gems
// for gemset options by following command
$ rvm gemset
$ rvm use 1.9.2
// following command create two gemset for Ruby 1.9.2
$ rvm gemset create rails222 rails126
$ rvm gemset use rails222
// Following command install rails 2.2.2 in gemset name rails222
$ gem install rails -v 2.2.2
$ rvm gemset use rails126
// Following command install rails 1.2.6 in gemset name rails126
$ gem install rails -v 1.2.6
// To display all gemsets as following command with all Ruby versions
$ rvm list gemsets
// To swap from one gemset to another with following command
//syntax $ rvm gemset use <gemset_name>
$ rvm gemset use rails222
// You can create & use gemset by following single commad
$ rvm use 1.9.2@demo --create
$ rvm gemset name
// To set gemset as default by following command
$ rvm use 1.9.2@demo --default
// Same for another Ruby as follow
$ rvm use 1.8.7
// following command create a gemset for Ruby 1.8.7
$ rvm gemset create rails122
$ rvm gemset use rails122
// Following command install rails 1.2.2 in gemset name rails122
$ gem install rails -v 1.2.2
// You can create & use gemset by following single commad
$ rvm use 1.8.7@demo --create
// To set gemset as default by following command
$ rvm use 1.8.7demo --default
