libjpeg-dev установился, libjpeg не находит. Ошибка по прежнему вот:
/usr/lib/ruby/1.9.1/tk/package.rb:86:in `rescue in require': TkPackage can't find package img::jpeg (RuntimeError)
from /usr/lib/ruby/1.9.1/tk/package.rb:83:in `require'
from /usr/lib/ruby/1.9.1/tkextlib/tkimg/jpeg.rb:14:in `<top (required)>'
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /home/xo8bit/RubymineProjects/test/my_test.rb:4:in `<top (required)>'
from -e:1:in `load'
from -e:1:in `<main>'