Disables systemd-timesync *after* apt-get complete

Moves the disabling of systemd services to after all apt operations have
completed, as in theory possible that subsequent apt-get installation
operations could re-enable the systemd-timesyncd service.

There is no evidence of this occurring, but still appropriate as a risk
reduction measure.

rescuezilla#107

rescuezilla#145

chroot.steps.part.1.sh

@@ -262,11 +262,3 @@ rm /usr/share/icons/*/icon-theme.cache
 rm -rf /usr/share/doc
 rm -rf /usr/share/man
 rm -rf /etc/network/if-up.d/ntpdate
-
-# Disable systemd's built-in NTP time synchronization service by manually masking it (`systemctl mask`)
-# using a symlink. This timesyncd service always modifies the hardware clock, and there
-# does not appear to be a way to prevent this service from modifying the hardware clock.
-# See [1] for more discussion.
-# [1] https://github.com/rescuezilla/rescuezilla/issues/107
-rm /etc/systemd/system/systemd-timesyncd.service
-ln -s /dev/null /etc/systemd/system/systemd-timesyncd.service

chroot.steps.part.2.sh

@@ -56,6 +56,14 @@ mv /var/lib/apt/lists /var.lib.apt.lists
 # and /var/cache/apt/archives/partial/."
 apt-get clean
 
+# Disable systemd's built-in NTP time synchronization service by manually masking it (`systemctl mask`)
+# using a symlink. This timesyncd service always modifies the hardware clock, and there
+# does not appear to be a way to prevent this service from modifying the hardware clock.
+# See [1] for more discussion.
+# [1] https://github.com/rescuezilla/rescuezilla/issues/107
+rm /etc/systemd/system/systemd-timesyncd.service
+ln -s /dev/null /etc/systemd/system/systemd-timesyncd.service
+
 rm -rf /tmp/*
 rm /etc/resolv.conf
 rm -rf /var/lib/apt/lists/????????*