install octopi in live session, remove db for overlay

config/packages.conf

@@ -282,7 +282,7 @@ clementine-qt5
 
 imagewriter
 octopi
-#octopi-notifier-qt5 will be installed at the end
+octopi-notifier
 ark
 spectacle
 okular

config/postinstall_packages.conf

@@ -3,4 +3,4 @@
 # Version: 20151103
 
 #kapudan
-octopi-notifier
+#octopi-notifier
\ No newline at end of file

src/iso.py

@@ -79,12 +79,9 @@ class IsoBuilder:
         # download packages
         package_dir = os.path.join(self.overlay_packages_dir, "opt/chakra/pkgs")
         package_dir = os.path.abspath(package_dir)
-        db_dir = os.path.join(self.overlay_packages_dir, "var/lib/pacman/")
-        db_dir = os.path.abspath(db_dir)
-        os.makedirs(package_dir, exist_ok=True)
         pacman_config = pjoin(self.configdir, "pacman.conf")
 
-        command = "pacman -Sywdd --noconfirm --dbpath {} --cachedir {} --config {} {}"
+        command = "pacman -Sywdd --noconfirm --cachedir {} --config {} {}"
         # pacman -Sw doesn't check dependencies with installed system, but it will fetch required packages altogether
         with open(os.path.join(self.configdir, "overlay-packages.conf")) as packages:
            for line in packages:
@@ -93,7 +90,6 @@ class IsoBuilder:
                continue
              subprocess.check_call(
                 command.format(
-                  db_dir,
                   package_dir,
                   pacman_config,
                   line