I was able to install it in my SolydX 64bit partition but I don't remember how I installed it in that system partition.
There was nothing that seem to work when I google it, as the posts seem outdated.
I found the official packages of Ejecter in Ubuntu here: http://packages.ubuntu.com/ejecter
After selecting the precise 12.04LTS version
and download the ejecter deb with my architecture, 64bit,
the deb file asked for the libgdu0 dependency error.
With a quick google search, I found the deb file in here: http://www.ubuntuupdates.org/package/core/precise/main/base/libgdu0
After downloading and installing the dependency, ejecter smoothly was installed in my system.
