diff --git a/freon@UshakovVasilii_Github.yahoo.com/commandLineUtil.js b/freon@UshakovVasilii_Github.yahoo.com/commandLineUtil.js
index 4aa5977..fc0dcfd 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/commandLineUtil.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/commandLineUtil.js
@@ -29,7 +29,7 @@ export default class CommandLineUtil {
                 }
             });
         } catch(e){
-            global.log(e.toString());
+            logError(e);
         }
     }
 
diff --git a/freon@UshakovVasilii_Github.yahoo.com/extension.js b/freon@UshakovVasilii_Github.yahoo.com/extension.js
index f7aed47..d9364f7 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/extension.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/extension.js
@@ -255,7 +255,7 @@ const FreonMenuButton = GObject.registerClass(class Freon_FreonMenuButton extend
 
     _initFreeipmiUtility() {
         if (this._settings.get_boolean('use-generic-freeipmi'))
-            this._utils.freeipmi = new FreeipmiUtil();
+            this._utils.freeipmi = new FreeipmiUtil(this._settings.get_string('exec-method-freeipmi'));
     }
 
     _destroyFreeipmiUtility() {
diff --git a/freon@UshakovVasilii_Github.yahoo.com/freeipmiUtil.js b/freon@UshakovVasilii_Github.yahoo.com/freeipmiUtil.js
index 5cd2bab..4a4388f 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/freeipmiUtil.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/freeipmiUtil.js
@@ -4,22 +4,17 @@ import CommandLineUtil from './commandLineUtil.js';
 
 export default class FreeipmiUtil extends CommandLineUtil {
 
-    constructor() {
+    constructor(exec_method) {
         super();
 
         const path = GLib.find_program_in_path('ipmi-sensors');
         // --comma-separated-output: pseudo csv output format, splitting on comma may be good enough for the values we read.
         this._argv = path ? [path, '--comma-separated-output'] : null;
 
-        if (this._argv) {
-            const ExtensionUtils = imports.misc.extensionUtils;
-            const Me = ExtensionUtils.getCurrentExtension();
-            if (ExtensionUtils.getSettings().get_string('exec-method-freeipmi') === 'sudo')
-            {
-                const sudo_path = GLib.find_program_in_path('sudo');
-                // --non-interactive: do not ask for password, return if no permission.
-                this._argv = sudo_path ? [sudo_path, '--non-interactive'].concat(this._argv) : null;
-            }
+        if (this._argv && exec_method === 'sudo')
+        {
+            const pkexec_path = GLib.find_program_in_path('pkexec');
+            this._argv = pkexec_path ? [pkexec_path].concat(this._argv) : null;
         }
     }
 
diff --git a/freon@UshakovVasilii_Github.yahoo.com/liquidctlUtil.js b/freon@UshakovVasilii_Github.yahoo.com/liquidctlUtil.js
index bb0b15d..a2f3015 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/liquidctlUtil.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/liquidctlUtil.js
@@ -70,7 +70,7 @@ export default class LiquidctlUtil extends CommandLineUtil {
                 this._temp = null;
                 this._rpm = null;
                 this._volt = null;
-                global.log('failed to process data from liquidctl: ' + e.toString());
+                logError(e, 'failed to process data from liquidctl');
             }
         });
     }
diff --git a/freon@UshakovVasilii_Github.yahoo.com/nvmecliUtil.js b/freon@UshakovVasilii_Github.yahoo.com/nvmecliUtil.js
index ce0c880..2b12d2d 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/nvmecliUtil.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/nvmecliUtil.js
@@ -12,7 +12,7 @@ export default class NvmecliUtil {
         try {
             this._nvmeDevices = getNvmeData("list")["Devices"]
         } catch (e) {
-            global.log('[FREON] Unable to find nvme devices: ' + e);
+            logError(e, '[FREON] Unable to find nvme devices');
         }
         this._updated = true;
     }
diff --git a/freon@UshakovVasilii_Github.yahoo.com/sensorsUtil.js b/freon@UshakovVasilii_Github.yahoo.com/sensorsUtil.js
index 0fd2a98..90c6ca9 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/sensorsUtil.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/sensorsUtil.js
@@ -25,10 +25,10 @@ export default class SensorsUtil extends CommandLineUtil {
                     let errorRemoved = lineRemoved.replace(/ERROR.*Can't read/, "");
                         errorRemoved = errorRemoved.replace(/ERROR.*I\/O error/, "");
                         data = JSON.parse(errorRemoved);
-                    } catch (e) {
-                        global.log(e.toString());
-                        return [];
-                    }
+                } catch (e) {
+                    logError(e);
+                    return [];
+                }
             }
             this._data = data;
             callback();
diff --git a/freon@UshakovVasilii_Github.yahoo.com/smartctlUtil.js b/freon@UshakovVasilii_Github.yahoo.com/smartctlUtil.js
index 17769e7..f58d194 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/smartctlUtil.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/smartctlUtil.js
@@ -12,7 +12,7 @@ export default class SmartctlUtil {
         try {
             this._smartDevices = getSmartData("--scan")["devices"]
         } catch (e) {
-            global.log('[FREON] Unable to find smart devices: ' + e);
+            logError(e, '[FREON] Unable to find smart devices');
         }
         this._updated = true;
     }
diff --git a/freon@UshakovVasilii_Github.yahoo.com/udisks2.js b/freon@UshakovVasilii_Github.yahoo.com/udisks2.js
index f54af16..d61f90d 100644
--- a/freon@UshakovVasilii_Github.yahoo.com/udisks2.js
+++ b/freon@UshakovVasilii_Github.yahoo.com/udisks2.js
@@ -82,13 +82,13 @@ export default class UDisks2 {
                     // create the proxies object
                     let driveProxy = new UDisksDriveProxy(Gio.DBus.system, "org.freedesktop.UDisks2", obj, function(res, error) {
                         if (error) { //very unlikely - we even checked the interfaces before!
-                            global.log('[FREON] Could not create proxy on ' + obj + ':' + error);
+                            logError(error, '[FREON] Could not create proxy on ' + obj);
                             callback(null);
                             return;
                         }
                         let ataProxy = new UDisksDriveAtaProxy(Gio.DBus.system, "org.freedesktop.UDisks2", obj, function(res, error) {
                             if (error) {
-                                global.log('[FREON] Could not create proxy on ' + obj + ':' + error);
+                                logError(error, '[FREON] Could not create proxy on ' + obj);
                                 callback(null);
                                 return;
                             }
@@ -101,20 +101,12 @@ export default class UDisks2 {
                     callback(proxies.filter(function(a) { return a != null; }));
                 });
             } catch (e) {
-                global.log('[FREON] Could not find UDisks2 objects: ' + e);
+                logError(e, '[FREON] Could not find UDisks2 objects');
             }
         });
     }
 
     destroy(callback) {
-        for (let proxy of this._udisksProxies){
-            if(proxy.drive){
-                proxy.drive.run_dispose();
-            }
-            if(proxy.ata){
-                proxy.ata.run_dispose();
-            }
-        }
         this._udisksProxies = [];
     }