@ndrew

Ruby on Rails 3 installation on Debian 6 Squeeze

apt-get install libsqlite3-dev curl git build-essential zlib1g-dev libssl-dev
bash << ( curl http://rvm.beginrescueend.com/releases/rvm-install-head )
if [[ -s "$HOME/.rvm/scripts/rvm" ]] ; then source "$HOME/.rvm/scripts/rvm" ; fi
rvm install 1.9.2
rvm --default ruby-1.9.2
gem install rails
rails new testapp

в $HOME/.profile

export PATH=$PATH:/var/lib/gems/1.8/bin

comment out sqlite deps in Gemfile

then run rails server: rails s

UPD 02.03.2012 obsolete replacement:

Package libreadline5-dev is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is …

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