install with forrowing commmands:

$ sudo apt-get install rubygems ruby1.9.1-dev

install jekyll by gem

kk@debian:~/github/kingkongmok.github.com$ sudo gem install jekyll
Building native extensions.  This could take a while...
Fetching: classifier-1.3.3.gem (100%)
Fetching: rb-fsevent-0.9.3.gem (100%)
Fetching: ffi-1.9.3.gem (100%)
Building native extensions.  This could take a while...
Fetching: rb-inotify-0.9.2.gem (100%)
Fetching: rb-kqueue-0.2.0.gem (100%)
Fetching: listen-1.3.1.gem (100%)
Fetching: syntax-1.0.0.gem (100%)
Fetching: maruku-0.6.1.gem (100%)
Fetching: yajl-ruby-1.1.0.gem (100%)
Building native extensions.  This could take a while...
Fetching: posix-spawn-0.3.6.gem (100%)
Building native extensions.  This could take a while...
Fetching: pygments.rb-0.5.4.gem (100%)
Fetching: highline-1.6.20.gem (100%)
Fetching: commander-4.1.5.gem (100%)
Fetching: safe_yaml-0.9.7.gem (100%)
Fetching: colorator-0.1.gem (100%)
Fetching: redcarpet-2.3.0.gem (100%)
Building native extensions.  This could take a while...
Fetching: jekyll-1.3.0.gem (100%)
Successfully installed fast-stemmer-1.0.2
Successfully installed classifier-1.3.3
Successfully installed rb-fsevent-0.9.3
Successfully installed ffi-1.9.3
Successfully installed rb-inotify-0.9.2
Successfully installed rb-kqueue-0.2.0
Successfully installed listen-1.3.1
Successfully installed syntax-1.0.0
Successfully installed maruku-0.6.1
Successfully installed yajl-ruby-1.1.0
Successfully installed posix-spawn-0.3.6
Successfully installed pygments.rb-0.5.4
Successfully installed highline-1.6.20
Successfully installed commander-4.1.5
Successfully installed safe_yaml-0.9.7
Successfully installed colorator-0.1
Successfully installed redcarpet-2.3.0
Successfully installed jekyll-1.3.0
18 gems installed
Installing ri documentation for fast-stemmer-1.0.2...
Installing ri documentation for classifier-1.3.3...
Installing ri documentation for rb-fsevent-0.9.3...
Installing ri documentation for ffi-1.9.3...
Enclosing class/module 'moduleFFI' for module DataConverter not known
Enclosing class/module 'moduleFFI' for class DynamicLibrary not known
Enclosing class/module 'LibraryClass' for class Symbol not known
Enclosing class/module 'moduleFFI' for class ArrayType not known
Enclosing class/module 'moduleFFI' for class FunctionType not known
Enclosing class/module 'rbffi_TypeClass' for class Mapped not known
Enclosing class/module 'rbffi_StructLayoutClass' for class CharArray not known
Enclosing class/module "rbffi_StructLayoutCharArrayClass" for alias to_str to_s not known
Installing ri documentation for rb-inotify-0.9.2...
Installing ri documentation for rb-kqueue-0.2.0...
Installing ri documentation for listen-1.3.1...
Installing ri documentation for syntax-1.0.0...
Installing ri documentation for maruku-0.6.1...
Couldn't find file to include 'MaRuKu.txt' from lib/maruku.rb
Installing ri documentation for yajl-ruby-1.1.0...
Installing ri documentation for posix-spawn-0.3.6...
Installing ri documentation for pygments.rb-0.5.4...
Installing ri documentation for highline-1.6.20...
Installing ri documentation for commander-4.1.5...
Installing ri documentation for safe_yaml-0.9.7...
Installing ri documentation for colorator-0.1...
Installing ri documentation for redcarpet-2.3.0...
Installing ri documentation for jekyll-1.3.0...
Installing RDoc documentation for fast-stemmer-1.0.2...
Installing RDoc documentation for classifier-1.3.3...
Installing RDoc documentation for rb-fsevent-0.9.3...
Installing RDoc documentation for ffi-1.9.3...
Enclosing class/module 'moduleFFI' for module DataConverter not known
Enclosing class/module 'moduleFFI' for class DynamicLibrary not known
Enclosing class/module 'LibraryClass' for class Symbol not known
Enclosing class/module 'moduleFFI' for class ArrayType not known
Enclosing class/module 'moduleFFI' for class FunctionType not known
Enclosing class/module 'rbffi_TypeClass' for class Mapped not known
Enclosing class/module 'rbffi_StructLayoutClass' for class CharArray not known
Enclosing class/module "rbffi_StructLayoutCharArrayClass" for alias to_str to_s not known
Installing RDoc documentation for rb-inotify-0.9.2...
Installing RDoc documentation for rb-kqueue-0.2.0...
Installing RDoc documentation for listen-1.3.1...
Installing RDoc documentation for syntax-1.0.0...
Installing RDoc documentation for maruku-0.6.1...
Couldn't find file to include 'MaRuKu.txt' from lib/maruku.rb
Installing RDoc documentation for yajl-ruby-1.1.0...
Installing RDoc documentation for posix-spawn-0.3.6...
Installing RDoc documentation for pygments.rb-0.5.4...
Installing RDoc documentation for highline-1.6.20...
Installing RDoc documentation for commander-4.1.5...
Installing RDoc documentation for safe_yaml-0.9.7...
Installing RDoc documentation for colorator-0.1...
Installing RDoc documentation for redcarpet-2.3.0...
Installing RDoc documentation for jekyll-1.3.0...

run server

kk@debian:~/github/kingkongmok.github.com$ jekyll serve
Configuration file: /home/kk/github/kingkongmok.github.com/_config.yml
       Deprecation: Auto-regeneration can no longer be set from your configuration file(s). Use the --watch/-w command-line option instead.
            Source: /home/kk/github/kingkongmok.github.com
       Destination: /home/kk/github/kingkongmok.github.com/_site
      Generating... done.
    Server address: http://0.0.0.0:4000
  Server running... press ctrl-c to stop.