[dracut] Change image name terminology to match dracut

src/modules/dracut/dracut.conf

@@ -5,6 +5,6 @@
 ---
 # Dracut defaults to setting initramfs-<kernel-version>.img
 # If you want to specify another filename for the resulting image,
-# set a custom kernel name, including the path
+# set a custom name, including the path
 #
-# kernelName: /boot/initramfs-linux.img
+# initramfsName: /boot/initramfs-linux.img

src/modules/dracut/dracut.schema.yaml

@@ -6,4 +6,4 @@ $id: https://calamares.io/schemas/dracut
 additionalProperties: false
 type: object
 properties:
-    kernelName: { type: string }
+    initramfsName: { type: string }

src/modules/dracut/main.py

@@ -34,12 +34,12 @@ def run_dracut():
 
     :return:
     """
-    kernelName = libcalamares.job.configuration['kernelName']
+    initramfs_name = libcalamares.job.configuration['initramfsName']
 
-    if not kernelName:
+    if not initramfs_name:
         return check_target_env_call(['dracut', '-f'])
     else:
-        return check_target_env_call(['dracut', '-f', '{}'.format(kernelName)])
+        return check_target_env_call(['dracut', '-f', initramfs_name])
 
 
 def run():
@@ -53,4 +53,4 @@ def run():
 
     if return_code != 0:
         return (_("Failed to run dracut on the target"),
-                _("The exit code was {}").format(return_code))
+                _(f"The exit code was {return_code}"))