-and painless approach -- lightweight virtualization, or chroot_
-jailing. In this exercise in **4 simple steps** we will install a
-complete (minimalistic) installation of Debian stable into a directory, and provide convenience wrapper to
-run fslview as if it was installed on the "main" system. Moreover, in
-case of security or critical fixes to fslview, such chroot
-environment, while being Debian installation, would be upgradeable as
-easily as your main system, thus guaranteeing robust performance.
+and hopefully painless approach -- lightweight virtualization, or chroot_
+jailing, which exists in Unix-land since 1970s.
+With this exercise in **4 simple steps** we will install a
+complete (minimalistic) installation of Debian stable into a separate
+directory. We will provide a convenience wrapper to
+run fslview as if it was installed on the "main" system. So your
+system will stay intact while you would enrich it with additional
+installation of stable Debian. Moreover if
+security or critical fixes to any components of that installation
+become available, this chroot
+environment, being a complete Debian installation, would be as
+easily upgradeable as your main system, thus guaranteeing robust performance.