Local user may not exist

src/freedombone-image-customise

         echo "Icon=/etc/patchwork/icon_patchwork.png" >> $rootdir/home/$MY_USERNAME/Desktop/social.desktop
         echo 'StartupNotify=true' >> $rootdir/home/$MY_USERNAME/Desktop/social.desktop
         chmod +x $rootdir/home/$MY_USERNAME/Desktop/social.desktop
-        chown $MY_USERNAME:$MY_USERNAME $rootdir/home/$MY_USERNAME/Desktop/social.desktop
+        chroot "$rootdir" chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Desktop/social.desktop
     fi
 }
 
         echo "Icon=/etc/patchwork/icon_ferment.png" >> $rootdir/home/$MY_USERNAME/Desktop/audio.desktop
         echo 'StartupNotify=true' >> $rootdir/home/$MY_USERNAME/Desktop/audio.desktop
         chmod +x $rootdir/home/$MY_USERNAME/Desktop/audio.desktop
-        chown $MY_USERNAME:$MY_USERNAME $rootdir/home/$MY_USERNAME/Desktop/audio.desktop
+        chroot "$rootdir" chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Desktop/audio.desktop
     fi
 }