RVM を rbenv に置き換え、RVM 関連のものをすべてクリーンアップしました。
_site 内で何も生成しない Jekyll を除いて、すべてがうまくいきました。
次に、で開始しようとしました--no-autoが、次の例外が発生しました。
/home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/psych.rb:203:in `parse': (<unknown>): found unexpected end of stream while scanning a quoted scalar at line 3 column 8 (Psych::SyntaxError)
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/psych.rb:203:in `parse_stream'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/psych.rb:151:in `parse'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/1.9.1/psych.rb:127:in `load'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/lib/jekyll/convertible.rb:33:in `read_yaml'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/lib/jekyll/page.rb:24:in `initialize'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/lib/jekyll/site.rb:140:in `new'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/lib/jekyll/site.rb:140:in `block in read_directories'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/lib/jekyll/site.rb:130:in `each'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/lib/jekyll/site.rb:130:in `read_directories'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/lib/jekyll/site.rb:98:in `read'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/lib/jekyll/site.rb:38:in `process'
from /home/carlos/.rbenv/versions/1.9.3-p327/lib/ruby/gems/1.9.1/gems/jekyll-0.11.2/bin/jekyll:250:in `<top (required)>'
from /home/carlos/.rbenv/versions/1.9.3-p327/bin/jekyll:23:in `load'
from /home/carlos/.rbenv/versions/1.9.3-p327/bin/jekyll:23:in `<main>'
gems フォルダー内の「1.9.1」がどこにあるのか、私には本当にわかりません。
ruby -v:
ruby 1.9.3p327 (2012-11-10 revision 37606) [x86_64-linux]
何が起きてる？