diff --git a/package-updates/package-updates-lib.pl b/package-updates/package-updates-lib.pl
index 64c075f97..74d0f3091 100644
--- a/package-updates/package-updates-lib.pl
+++ b/package-updates/package-updates-lib.pl
@@ -46,7 +46,7 @@ if (!$get_software_packages_cache) {
 return $get_software_packages_cache;
 }
 
-# list_current(nocache)
+# list_current([nocache])
 # Returns a list of packages and versions for installed software. Keys are :
 #  name - The my package name (ie. CSWapache2)
 #  update - Name used to refer to it by the updates system (ie. apache2)
@@ -418,15 +418,16 @@ if (defined(&software::update_system_operations)) {
 return ( );
 }
 
-# list_possible_updates([nocache])
+# list_possible_updates([nocache], [nocache-no-data])
 # Returns a list of updates that are available. Each element in the array
 # is a hash ref containing a name, version, description and severity flag.
 # Intended for calling from themes. Nocache 0=cache everything, 1=flush all
-# caches, 2=flush only current
+# caches, 2=flush only current. Nocache-no-data prohibits collecting data
 sub list_possible_updates
 {
-my ($nocache) = @_;
+my ($nocache, $nocache_no_data) = @_;
 my @rv;
+return @rv if ($nocache_no_data);
 my @current = &list_current($nocache);
 if (&supports_updates_available()) {
 	# Software module supplies a function that can list just packages
@@ -676,10 +677,13 @@ return $mode eq 'updates' || $mode eq 'security' ?
 	&list_possible_updates($nocache) : &list_available($nocache);
 }
 
-# check_reboot_required(after-flag)
+# check_reboot_required([no-collect])
 # Returns 1 if the package system thinks a reboot is needed
+# If the no-collect flag is set, then check won't happen
 sub check_reboot_required
 {
+my ($no_collect) = @_;
+return 0 if ($no_collect);
 if ($gconfig{'os_type'} eq 'debian-linux') {
         return -e "/var/run/reboot-required" ? 1 : 0;
         }
diff --git a/package-updates/update.cgi b/package-updates/update.cgi
index b5f45d7a1..f019a4bd3 100755
--- a/package-updates/update.cgi
+++ b/package-updates/update.cgi
@@ -108,7 +108,7 @@ else {
 		}
 	else {
 		# Check if a reboot was required before
-		$reboot_before = &check_reboot_required(0);
+		$reboot_before = &check_reboot_required();
 
 		# Do it
 		$msg = $in{'mode'} eq 'new' ? 'update_pkg2' : 'update_pkg';
@@ -165,7 +165,7 @@ else {
 			}
 
 		# Check if a reboot is required now
-		if (!$reboot_before && &check_reboot_required(1) &&
+		if (!$reboot_before && &check_reboot_required() &&
 		    &foreign_check("init")) {
 			print &ui_form_start(
 				"@{[&get_webprefix()]}/init/reboot.cgi");
diff --git a/system-status/system-status-lib.pl b/system-status/system-status-lib.pl
index b227c5612..2df92a54c 100755
--- a/system-status/system-status-lib.pl
+++ b/system-status/system-status-lib.pl
@@ -24,7 +24,8 @@ our $get_collected_info_cache;
 # Returns a hash reference containing system information
 sub collect_system_info
 {
-my ($manual) = @_;
+my ($manual, $modskip) = @_;
+$modskip ||= [];
 my $info = { };
 
 if (&foreign_check("proc")) {
@@ -64,9 +65,11 @@ if (&foreign_check("mount")) {
 # Available package updates
 if (&foreign_installed("package-updates") && $config{'collect_pkgs'}) {
 	&foreign_require("package-updates");
-	my @poss = &package_updates::list_possible_updates(2, 1);
+	my $poss_collect_blocked = (&indexof('package-updates', @{$modskip}) > -1);
+	my $poss_current = !$poss_collect_blocked ? 2 : undef;
+	my @poss = &package_updates::list_possible_updates(undef, $poss_collect_blocked);
 	$info->{'poss'} = \@poss;
-	$info->{'reboot'} = &package_updates::check_reboot_required();
+	$info->{'reboot'} = &package_updates::check_reboot_required($poss_collect_blocked);
 	}
 
 # CPU and drive temps
@@ -105,7 +108,7 @@ return $info;
 # Returns the most recently collected system information, or the current info
 sub get_collected_info
 {
-my ($manual) = @_;
+my ($manual, $modskip) = @_;
 if (!defined($manual) ||
      defined($manual) && $manual ne 'manual') {
 	if ($get_collected_info_cache) {
@@ -124,7 +127,7 @@ if (!defined($manual) ||
 			}
 		}
 	}
-$get_collected_info_cache ||= &collect_system_info($manual);
+$get_collected_info_cache ||= &collect_system_info($manual, $modskip);
 return $get_collected_info_cache;
 }
 
diff --git a/system-status/system_info.pl b/system-status/system_info.pl
index fa3340b3c..21ffedc52 100644
--- a/system-status/system_info.pl
+++ b/system-status/system_info.pl
@@ -10,7 +10,8 @@ our (%text, %gconfig, $module_name, %config);
 # Returns general information about the system, such as available disk space
 sub list_system_info
 {
-my $info = &get_collected_info();
+my ($data, $in, $modskip) = @_;
+my $info = &get_collected_info(undef, $modskip);
 my @rv;
 my @table;
 my @raw = $info;
diff --git a/web-lib-funcs.pl b/web-lib-funcs.pl
index b94d648aa..3426f77bf 100755
--- a/web-lib-funcs.pl
+++ b/web-lib-funcs.pl
@@ -12103,7 +12103,7 @@ return { 'type' => 'item',
          'link' => '/'.$minfo->{'dir'}.'/' };
 }
 
-=head2 list_combined_system_info(&data, &in)
+=head2 list_combined_system_info(&data, &in, [&modskip])
 
 Returns an array of objects, each representing a block of system information
 to display. Each is a hash ref with the following keys :
@@ -12179,20 +12179,22 @@ use where a system info block has a form that submits to itself.
 =cut
 sub list_combined_system_info
 {
-my ($data, $in) = @_;
+my ($data, $in, $modskip) = @_;
 &load_theme_library();
+$modskip ||= [];
 foreach my $m (&get_all_module_infos()) {
+	next if (&indexof($m->{'dir'}, @{$modskip}) > -1);
 	my $dir = &module_root_directory($m->{'dir'});
 	my $mfile = "$dir/system_info.pl";
 	next if (!-r $mfile);
 	&foreign_require($m->{'dir'}, "system_info.pl");
 	foreach my $i (&foreign_call($m->{'dir'}, "list_system_info",
-				     $data, $in)) {
+				     $data, $in, $modskip)) {
 		$i->{'module'} = $m->{'dir'};
 		push(@rv, $i);
 		}
 	}
-if (&foreign_available("webmin")) {
+if ((&indexof('webmin', @{$modskip}) == -1) && &foreign_available("webmin")) {
 	# Merge in old-style notification API
 	&foreign_require("webmin");
 	foreach my $n (&webmin::get_webmin_notifications()) {
diff --git a/webmin/webmin-lib.pl b/webmin/webmin-lib.pl
index 456eb5dc7..21377c4f4 100755
--- a/webmin/webmin-lib.pl
+++ b/webmin/webmin-lib.pl
@@ -1305,7 +1305,7 @@ if (&foreign_check("package-updates") && &foreign_available("init")) {
 				}
 			}
 		}
-	if (&package_updates::check_reboot_required() && $allow_reboot_required) {
+	if ($allow_reboot_required && &package_updates::check_reboot_required()) {
 		push(@notifs,
 			&ui_form_start("@{[&get_webprefix()]}/init/reboot.cgi").
 			$text{'notif_reboot'}."<p>\n".