creating ignite with gui (first time)

[Donald Thaler]

using the ignite gui, i created the client, and i believe the next step is to do a new client install. in looking at the ignite admin guide it says 'Command libraries and other files must be loaded and removed as needed.'.
(1) what do they mean by removed ??
the admin guide also says 'HP-UX archives and depot software are installed. The HP-UX kernel is built.
(2) is it building a new kernel to replace the existing kernel (right now) or does it mean it's building a new kernel to be placed on the recovery file?
The admin guided concludes:
A reboot is required to start the final HP-UX kernel and make the new file system the root file system.
(3) I was told a reboot was not required after creating the installation. And i'm a little confused as to what 'making the new file system the root file system' means ?
This is the first time i'm trying to build an ignite recovery file and i'm a little hesitant about what's going to happen to the current environment when this thing finishes, even though i'm doing on my backup server ?