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安装Ruby On Rails

Rails Version Required Ruby Version Recommended Ruby Version Required Rubygems Version Status
8.1.Z >= 3.2.0 3.4.Z >= 1.8.11 Maintained
8.0.Z >= 3.2.0 3.4.Z >= 1.8.11 Maintained
7.2.Z >= 3.1.0 3.4.Z >= 1.8.11 Maintained

RbEnv

Install ruby using rbenv.

Dependencies

  • Debian

v12 After enabling sudo, the operation is the same as Ubuntu.

  • Ubuntu
    Ubuntu 20.04 default Ruby version is v2.7
sudo apt install git curl libssl-dev libreadline-dev zlib1g-dev autoconf bison build-essential \
 libyaml-dev libncurses5-dev libffi-dev libgdbm-dev
  • RHEL
    RHEL8(Alma / Rocky) default Ruby version is v2.5.5
sudo dnf -y install git make gcc curl openssl-devel zlib-devel libffi-devel readline-devel sqlite-devel

install tar:

sudo yum install tar

install

first install RbEnv Dependencies;
Later, upload rbenv-installer shell script.

D:\programs\putty079>PSCP.EXE d:\rbenv-installer tdtc@192.168.3.99:/home/tdtc/

or

export http_proxy=http://tdtc:qaz1xsw2@192.168.3.128:8580/
export https_proxy=http://tdtc:qaz1xsw2@192.168.3.128:8580/
curl -fsSL https://github.com/rbenv/rbenv-installer/raw/HEAD/bin/rbenv-installer | bash

set path:

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
source ~/.bashrc

test:

$ rbenv -v
rbenv 1.3.2-16-gba96d7e

show list:

rbenv install -l

installation

  • online
rbenv install 3.4.8
  • offline
    down:
curl -O https://cache.ruby-lang.org/pub/ruby/3.4/ruby-3.4.8.tar.gz

1. Move the downloaded file to `~/.rbenv/cache/`
2. Run `rbenv install x.y.z` (ex. rbenv install 3.4.8`)

set and test

  • set global
rbenv global 3.4.8
  • test
$ ruby --version
ruby 3.4.8 (2025-12-17 revision 995b59f666) +PRISM [x86_64-linux]

Rails

gem install rails

info(39 gems installed)

Fetching zeitwerk-2.7.4.gem
Fetching thor-1.5.0.gem
Fetching rackup-2.3.1.gem
Fetching rack-3.2.4.gem
Fetching concurrent-ruby-1.3.6.gem
Fetching tzinfo-2.0.6.gem
Fetching i18n-1.14.8.gem
Fetching connection_pool-3.0.2.gem
Fetching activesupport-8.1.1.gem
Fetching useragent-0.16.11.gem
Fetching nokogiri-1.19.0-x86_64-linux-gnu.gem
Fetching crass-1.0.6.gem
Fetching loofah-2.25.0.gem
Fetching rails-html-sanitizer-1.6.2.gem
Fetching rails-dom-testing-2.3.0.gem
Fetching rack-test-2.2.0.gem
Fetching rack-session-2.1.1.gem
Fetching erubi-1.13.1.gem
Fetching builder-3.3.0.gem
Fetching actionview-8.1.1.gem
Fetching actionpack-8.1.1.gem
Fetching railties-8.1.1.gem
Fetching marcel-1.1.0.gem
Fetching activemodel-8.1.1.gem
Fetching activerecord-8.1.1.gem
Fetching globalid-1.3.0.gem
Fetching activejob-8.1.1.gem
Fetching activestorage-8.1.1.gem
Fetching action_text-trix-2.1.16.gem
Fetching actiontext-8.1.1.gem
Fetching mini_mime-1.1.5.gem
Fetching mail-2.9.0.gem
Fetching rails-8.1.1.gem
Fetching actionmailer-8.1.1.gem
Fetching actionmailbox-8.1.1.gem
Fetching websocket-extensions-0.1.5.gem
Fetching websocket-driver-0.8.0.gem
Fetching nio4r-2.7.5.gem
Fetching actioncable-8.1.1.gem

test:

$ rails -v
Rails 8.1.1

exec list

rails db:create
rails db:migrate
rake assets:clean
rake assets:clobber
rake tmp:clear
rake assets:precompile
./bin/dev

Ref