/usr/local/bin/gem:8:in `require': no such file to load -- rubygems (LoadError) from /usr/local/bin/gem:8ぐわああああああ！とりあえず慌てず騒がず RHEL なので up2date で zlib をインストール。 $ sudo up2date zlib ->ねえよぐわああああああ！(…