Just a quick post on what i did to get Groupwise up and running on Ubuntu 64bit:
1) Installed a 32bit virtual Ubuntu machine, and converted the Groupwise installer to a .deb package with “alien -c filename”.
2) Moved the .deb package back to the host machine.
3) Installed 32bit java libraries “sudo apt-get install ia32-sun-java6-bin”
4) Forced installation of the Groupwise client “sudo dpkg -i –force-architecture novell-groupwise-gwclient_8.0.0-84911_i386.deb”
5) And it works 