Update: The repository below is not maintained anymore, as official packages have been pushed into Debian. They are not yet available for Ubuntu 11.04 though. In order install 4store on Natty you'd have to install the following packages from the Oneiric repository, in order:
And you should have a running 4store (1.1.3).
Old post, for reference: I've been playing a lot with
Garlik's 4store recently, and I have been
building a few things around it. I just finished building packages for Ubuntu Jaunty, which you can get by adding the
following lines in your
deb http://moustaki.org/apt jaunty main deb-src http://moustaki.org/apt jaunty main
And then, an
apt-get update && apt-get install 4store
should do the trick. The packages are available for i386 and amd64. It is also
one of my first packages, so feedback is welcomed (I may have gotten it
completely wrong). After being installed, you can create a database and start a SPARQL server.
I've also been writing two client libraries for 4store, all available on Github: