注意，下面的有些步骤不适合
先到jekyll官网，用它的方法安装好本地博客，再看几个octopress3.0的教程，比如官方github的和博文1，Octopress 3 Arrives to Make Blog Generation Crazy Simple ，安装octopress，用它来上传blog，结合下面的前面几步，git，rvm，ruby，bundler，bundle install(or bundle)
重装octopress 2.0 博客失败
很多新旧的软件，依赖，都不兼容了
算了，世界在发展，有的旧事物必然被淘汰
毕竟连作者都不维护了
而且连3.0都不维护了
============================
博文1，Octopress 3 Arrives to Make Blog Generation Crazy Simple
安装git
设置好用户名，email等等，参见之前的blog
添加ssh钥匙到github
安装rvm
安装ruby 2.7.0,好像默认就是
修复安装2.2.6失败的教程
安装octopress
gem install octopress
创建博客的主文件夹
octopress new haydnyau #名字自取
新建一篇blog
octopress new post hello world
生成网页
jekyll build
为避免下面的错误：
sudo bundle add webrick
本地预览
jekyll serve
可能会报错,参见此blog
dong@Ubuntu:~/haydnyau$ bundle exec jekyll serve
Configuration file: /home/dong/haydnyau/_config.yml
Source: /home/dong/haydnyau
Destination: /home/dong/haydnyau/_site
Incremental build: disabled. Enable with --incremental
Generating...
Jekyll Feed: Generating feed for posts
done in 0.398 seconds.
Auto-regeneration: enabled for '/home/dong/haydnyau'
------------------------------------------------
Jekyll 4.2.1 Please append `--trace` to the `serve` command
for any additional information or backtrace.
------------------------------------------------
/home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/commands/serve/servlet.rb:3:in `require': cannot load such file -- webrick (LoadError)
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/commands/serve/servlet.rb:3:in `<top (required)>'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/commands/serve.rb:179:in `require_relative'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/commands/serve.rb:179:in `setup'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/commands/serve.rb:100:in `process'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/command.rb:91:in `block in process_with_graceful_fail'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/command.rb:91:in `each'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/command.rb:91:in `process_with_graceful_fail'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/lib/jekyll/commands/serve.rb:86:in `block (2 levels) in init_with_program'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `block in execute'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `each'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/mercenary-0.4.0/lib/mercenary/command.rb:221:in `execute'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/mercenary-0.4.0/lib/mercenary/program.rb:44:in `go'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/mercenary-0.4.0/lib/mercenary.rb:21:in `program'
from /home/dong/.rvm/gems/ruby-3.1.0/gems/jekyll-4.2.1/exe/jekyll:15:in `<top (required)>'
from /home/dong/.rvm/gems/ruby-3.1.0/bin/jekyll:25:in `load'
from /home/dong/.rvm/gems/ruby-3.1.0/bin/jekyll:25:in `<main>'
from /home/dong/.rvm/gems/ruby-3.1.0/bin/ruby_executable_hooks:22:in `eval'
from /home/dong/.rvm/gems/ruby-3.1.0/bin/ruby_executable_hooks:22:in `<main>'
dong@Ubuntu:~/haydnyau$
原因：
回答1：
This happens because webrick is no longer a bundled gem in Ruby 3.0. From https://www.ruby-lang.org/en/news/2020/12/25/ruby-3-0-0-released/:
- The following libraries are no longer bundled gems or standard libraries. Install the corresponding gems to use these features.
- sdbm
- webrick
- net-telnet
- xmlrpc
Adding gem "webrick" to my Gemfile solves the problem, but Jekyll should include it in its gemspec.
回答2：
I think you want run: bundle add webrick.
我运行：
sudo bundle add webrick
dong@Ubuntu:~/haydnyau$ bundle add webrick
Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies...
Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies...
Using public_suffix 4.0.6
Using bundler 2.3.4
Using colorator 1.1.0
Using concurrent-ruby 1.1.9
Using eventmachine 1.2.7
Using http_parser.rb 0.8.0
Using ffi 1.15.4
Using forwardable-extended 2.6.0
Using rb-fsevent 0.11.0
Using rexml 3.2.5
Using liquid 4.0.3
Using mercenary 0.4.0
Using rouge 3.27.0
Using safe_yaml 1.0.5
Using unicode-display_width 1.8.0
Using webrick 1.7.0
Using addressable 2.8.0
Using sassc 2.4.0
Using rb-inotify 0.10.1
Using kramdown 2.3.1
Using terminal-table 2.0.0
Using listen 3.7.0
Using kramdown-parser-gfm 1.1.0
Using jekyll-sass-converter 2.1.0
Using pathutil 0.16.2
Using em-websocket 0.5.3
Using i18n 1.8.11
Using jekyll-watch 2.2.1
Using jekyll 4.2.1
Using jekyll-feed 0.16.0
Using jekyll-seo-tag 2.7.1
Using minima 2.5.1
dong@Ubuntu:~/haydnyau$
问题解决
解决前后的Gemfile文件：
生成发布配置文件
octopress deploy init git git@github.com:haydnyau/haydnyau.github.com.git
发布
octopress deploy
git上传
git init
git add .
还有的以后琢磨
买个早餐，吃饱，睡觉
===================================================
下面的是详细一点但有点杂乱的，若已经创建好，不必要看
===================================================
欢迎来到octopress3.0
折腾两三天了
先简单说说吧，详细的自己再琢磨
安装以下的：
git，设置好用户名，email等等，参见之前的blog
添加ssh钥匙到github
安装rvm
安装ruby
dong@Ubuntu:~$ rvm install 3.1.0
dong@Ubuntu:~$ rvm use 3.1.0
dong@Ubuntu:~$ rvm rubygems latest
install the Octopress gem. From your terminal:
dong@Ubuntu:~$ gem install octopress
And with that, you have Octopress installed!
Blog Creation
Getting up and running is easy with the new Octopress CLI commands. Navigate to your working directory and run the command below:
octopress new haydnyau
This will create a directory named haydnyau with scaffolding for the website. Replace “haydnyau” with whatever you want to call your blog. Navigate to the newly crewated directory and open up your text editor to see what you have.
Creating a Post
We can create a new post using one of the Octopress CLI commands:
octopress new post hello world
This command creates a new blog post with the title hello world. You can obviously use any title of your choice. The post is created in the _posts directory.
Viewing the Site
Before the site can be viewed it has to be built. Since Octopress is a wrapper around Jekyll, we will use the command below to build:
jekyll build
That will build a static HTML website that can be found in the _site directory. This is built out of the markdown files for pages, posts, stylesheets, and config.
To view the site run the command below from your terminal:
jekyll serve
Then, point your browser to the address localhost:4000.
Configuration
Octopress has a configuration file where you manage the settings for the website. This is the _config.yml file located in the home directory of the site. Here is an example of what it looks like:
# Site settings
title: Your awesome title
email: your-email@domain.com
description: > # this means to ignore newlines until "baseurl:"
Write an awesome description for your new site here. You can edit this
line in _config.yml. It will appear in your document head meta (for
Google search results) and in your feed.xml site description.
baseurl: "" # the subpath of your site, e.g. /blog/
url: "http://yourdomain.com" # the base hostname & protocol for your site
twitter_username: jekyllrb
github_username: jekyll
# Build settings
markdown: kramdown
From the configuration file, you can add your Twitter and Github usernames. They will show up at the bottom of your page, along with the description. Feel free to edit the settings as desired by adding the necessary information. You will have to restart your server for the configuration changes to show up in your browser. You can stop the server by pressing CTRL+C.
Deploying to GitHub Pages
We will be hosting our blog on GitHub. Create an account if you do not have one yet.
Create a new repository, give it a name in this format; username.github.com, replacing username with your Github username. Mine looks like this haydnyau.github.com.
Generate the deployment configuration file for our blog using octopress deploy init command.
octopress deploy init git git@github.com:haydnyau/haydnyau.github.com.git
This generates a file called _deploy.yml, which contains the deployment configuration:
method: git # How do you want to deploy? git, rsync or s3.
site_dir: _site # Location of your static site files.
git_url: git@github.com:kinsomicrote/kinsomicrote.github.io # remote repository url, e.g. git@github.com:username/repo_name
# Note on git_branch:
# If using GitHub project pages, set the branch to 'gh-pages'.
# For GitHub user/organization pages or Heroku, set the branch to 'master'.
#
git_branch: master # Git branch where static site files are commited
# remote_path: # Destination directory
Now deploy!
octopress deploy