HP-UX Host Intrusion Detection System Release 4.0 Release Notes for HP-UX 11i v1 | HP-UX 11i v2

Installation
Installing the Depots
Chapter 244
Will Installing HP-UX HIDS Release 4.0 Reboot My
Agent System?
The installation scripts for HP-UX HIDS try to avoid unnecessary
system reboots. However, in some circumstances, a system reboot might
be required. Those circumstances are (in order of priority):
1. If you choose the Reinstall Filesets option in the graphical
interface to swinstall, all HIDS filesets will be installed, and a
system reboot will occur.
2. If you pass the -x reinstall=true option to the command-line
invocation of swinstall, all HIDS file sets will be installed, and a
system reboot will occur.
3. If you are installing HP-UX HIDS Release 4.0 on a system for the
first time (a fresh install), a reboot will occur.
4. If you upgrade HP-UX HIDS from Release 2.x or Release 3.1, a
reboot will occur.
Table 2-6 Reboot Matrix
Update from: Update to Release 4.0
Not installed Reboot
Release 3.1 No Reboot
Release 3.0 No Reboot
Release 2.2 Reboot
Release 2.1 Reboot
Release 2.0 Reboot