--- a/package/feeds/luci/luci-app-opkg/htdocs/luci-static/resources/view/opkg.js
+++ b/package/feeds/luci/luci-app-opkg/htdocs/luci-static/resources/view/opkg.js
@@ -880,7 +880,7 @@ function handleOpkg(ev)
 				_('Waiting for the <em>opkg %h</em> command to complete…').format(cmd))
 		]);
 
-		var argv = [ cmd, '--force-removal-of-dependent-packages' ];
+		var argv = [ cmd, '--force-removal-of-dependent-packages', '--force-overwrite', '--force-checksum' ];
 
 		if (rem && rem.checked)
 			argv.push('--autoremove');

--- a/package/feeds/luci/luci-app-opkg/root/usr/libexec/opkg-call
+++ b/package/feeds/luci/luci-app-opkg/root/usr/libexec/opkg-call
@@ -15,6 +15,7 @@ case "$action" in
 	;;
 	install|update|remove)
 		(
+		source /etc/profile.d/opkginstall.sh;
 			opkg="opkg"
 
 			while [ -n "$1" ]; do

--- a/package/feeds/luci/luci-mod-system/htdocs/luci-static/resources/view/system/flash.js
+++ b/package/feeds/luci/luci-mod-system/htdocs/luci-static/resources/view/system/flash.js
@@ -203,6 +203,7 @@ return view.extend({
 			}, this, ev.target))
 			.then(L.bind(function(btn, res) {
 				var keep = E('input', { type: 'checkbox' }),
+				    keep_opkg = E('input', { type: 'checkbox' }),
 				    force = E('input', { type: 'checkbox' }),
 				    is_valid = res[1].valid,
 				    is_forceable = res[1].forceable,
@@ -220,6 +221,10 @@ return view.extend({
 				body.push(E('p', {}, E('label', { 'class': 'btn' }, [
 					keep, ' ', _('Keep settings and retain the current configuration')
 				])));
+				body.push(E('p', {}, E('label', { 'class': 'btn' }, [
+					keep_opkg, ' ', _('Retain the current packages')
+				])));
+					keep_opkg.checked = true;
 
 				if (!is_valid || is_too_big)
 					body.push(E('hr'));
@@ -257,7 +262,7 @@ return view.extend({
 
 				var cntbtn = E('button', {
 					'class': 'btn cbi-button-action important',
-					'click': ui.createHandlerFn(this, 'handleSysupgradeConfirm', btn, keep, force),
+					'click': ui.createHandlerFn(this, 'handleSysupgradeConfirm', btn, keep, keep_opkg, force),
 					'disabled': (!is_valid || is_too_big) ? true : null
 				}, [ _('Continue') ]);
 
@@ -282,7 +287,7 @@ return view.extend({
 			}, this, ev.target));
 	},
 
-	handleSysupgradeConfirm: function(btn, keep, force, ev) {
+	handleSysupgradeConfirm: function(btn, keep, keep_opkg, force, ev) {
 		btn.firstChild.data = _('Flashing…');
 
 		ui.showModal(_('Flashing…'), [
@@ -294,6 +299,9 @@ return view.extend({
 		if (!keep.checked)
 			opts.push('-n');
 
+		if (keep_opkg.checked)
+			opts.push('-k');
+
 		if (force.checked)
 			opts.push('--force');