Don't install havege on VMs

src/freedombone-image-customise

 # Set up HRNG for systems known to have one
 # Otherwise install haveged
 if [[ "$MACHINE" != "beaglebone"* ]]; then
-    chroot $rootdir apt-get -yq install haveged
+    # With some VMs, the hardware cycles counter is emulated and deterministic,
+    # and thus predictible, so havege should not be used
+    if [[ "$MACHINE" != "qemu"* ]]; then
+        chroot $rootdir apt-get -yq install haveged
+    fi
 else
     chroot $rootdir apt-get -yq install rng-tools
     sed -i 's|#HRNGDEVICE=/dev/hwrng|HRNGDEVICE=/dev/hwrng|g' $rootdir/etc/default/rng-tools

src/freedombone-utils-rng

             install_onerng
             ;;
         *)
-            apt-get -yq install haveged
+            # With some VMs, the hardware cycles counter is emulated and deterministic,
+            # and thus predictible, so havege should not be used
+            if [[ "$ARCHITECTURE" != "qemu"* ]]; then
+                apt-get -yq install haveged
+            fi
             ;;
     esac
 

src/freedombone-utils-setup

     apt-get -yq install avahi-discover avahi-autoipd iptables dnsutils net-tools
     apt-get -yq install network-manager iputils-ping libnss-mdns libnss-myhostname
     apt-get -yq install libnss-gw-name nano man ntp locales locales-all debconf
-    apt-get -yq install wireless-tools wpasupplicant usbutils zsh
-    apt-get -yq install pinentry-curses eatmydata iotop bc hostapd haveged
-    apt-get -yq install cpulimit screen
+    apt-get -yq install wireless-tools wpasupplicant usbutils zsh cpulimit screen
+    apt-get -yq install pinentry-curses eatmydata iotop bc hostapd
+
+    # With some VMs, the hardware cycles counter is emulated and deterministic,
+    # and thus predictible, so havege should not be used
+    if [[ $ARCHITECTURE != 'qemu'* ]]; then
+        apt-get -yq install haveged
+    fi
 
     if [[ $ARCHITECTURE == 'qemu'* || $ARCHITECTURE == 'amd64' || $ARCHITECTURE == 'x86_64' || $ARCHITECTURE == 'i686' || $ARCHITECTURE == 'i386' ]]; then
         apt-get -yq install grub2 lvm2 initramfs-tools