Comment 5 for bug 560715

Installing packages from previous ubuntu releases might be difficult as you will probably need older versions of some dependencies too when installing them with dpkg. Of course, you could try extracting the package somewhere with dpkg -x. But I would recommend compiling it from source - it's not that difficult in case of lyx. Just download the source from www.lyx.org, extract it somewhere, install the dependencies for build (look into the file "INSTALL", it contains some hints; you will definately need "g++", "qt4-dev-tools" and "libqt4-dev"), execute "./configure" and then "make" in terminal. After compiling, you can run lyx in place with "src/lyx" in the source directory without installing.