Merge pull request #2315 from eugenesan/i2311

Mirror GRUB's splash screen functionality for non-grub booloaders

src/modules/bootloader/main.py

@@ -127,7 +127,6 @@ def is_zfs_root(partition):
 
 def get_kernel_params(uuid):
     kernel_params = libcalamares.job.configuration.get("kernelParams", ["quiet"])
-    kernel_params.append("rw")
 
     partitions = libcalamares.globalstorage.value("partitions")
     swap_uuid = ""
@@ -136,11 +135,17 @@ def get_kernel_params(uuid):
 
     cryptdevice_params = []
 
+    has_plymouth = libcalamares.utils.target_env_call(["sh", "-c", "which plymouth"]) == 0
     has_dracut = libcalamares.utils.target_env_call(["sh", "-c", "which dracut"]) == 0
     uses_systemd_hook = libcalamares.utils.target_env_call(["sh", "-c",
                                                             "grep -q \"^HOOKS.*systemd\" /etc/mkinitcpio.conf"]) == 0
     use_systemd_naming = has_dracut or uses_systemd_hook
 
+    # If plymouth installed, add splash screen parameter early
+    if has_plymouth:
+        kernel_params.append("splash")
+
+    kernel_params.append("rw")
 
     # Take over swap settings:
     #  - unencrypted swap partition sets swap_uuid