initcpiocfg: accept (but warn) for missing config file in the host

src/modules/initcpiocfg/main.py

@@ -65,8 +65,12 @@ def write_mkinitcpio_lines(hooks, modules, files, root_mount_point):
     :param files:
     :param root_mount_point:
     """
+    try:
         with open("/etc/mkinitcpio.conf", "r") as mkinitcpio_file:
             mklins = [x.strip() for x in mkinitcpio_file.readlines()]
+    except FileNotFoundError:
+        libcalamares.utils.debug("Could not open host file /etc/mkinitcpio.conf")
+        mklins = []
 
     for i in range(len(mklins)):
         if mklins[i].startswith("HOOKS"):