Add kickstart/command line control to enable systemd-boot

Now, that we have all the infrastructure in place, lets
add and document a 'inst.systemd' option that can be used
on the boot commadline or placed in kickstart files.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>

data/anaconda.conf

@@ -138,6 +138,7 @@ selinux = -1
 #
 #   DEFAULT   Choose the type by platform.
 #   EXTLINUX  Use extlinux as the bootloader.
+#   SDBOOT    Use systemd-boot as the bootloader.
 #
 type = DEFAULT
 

data/anaconda_options.txt

@@ -231,6 +231,11 @@ Use extlinux as the bootloader. Note that there's no attempt to validate
 that this will work for your platform or anything; it assumes that if you
 ask for it, you want to try.
 
+sdboot
+Use systemd-boot as the bootloader. Note that there's no attempt to validate
+that this will work for your platform or anything; it assumes that if you
+ask for it, you want to try.
+
 nombr
 
 If nombr is specified the grub2 bootloader will be installed but the

docs/boot-options.rst

@@ -669,6 +669,15 @@ Use extlinux as the bootloader. Note that there's no attempt to validate that
 this will work for your platform or anything; it assumes that if you ask for it,
 you want to try.
 
+.. inst.sdboot:
+
+inst.sdboot
+^^^^^^^^^^^^^
+
+Use systemd-boot as the bootloader. Note that there's no attempt to validate that
+this will work for your platform or anything; it assumes that if you ask for it,
+you want to try.
+
 .. inst.leavebootorder:
 
 inst.leavebootorder

pyanaconda/argument_parsing.py

@@ -597,6 +597,8 @@ def __call__(self, parser, namespace, values, option_string=None):
                     help=help_parser.help_text("noeject"))
     ap.add_argument("--extlinux", action="store_true", default=False,
                     help=help_parser.help_text("extlinux"))
+    ap.add_argument("--sdboot", action="store_true", default=False,
+                    help=help_parser.help_text("sdboot"))
     ap.add_argument("--nombr", action="store_true", default=False,
                     help=help_parser.help_text("nombr"))
     ap.add_argument("--mpathfriendlynames", dest="multipath_friendly_names", action="store_true",

pyanaconda/core/configuration/anaconda.py

@@ -375,6 +375,8 @@ def set_from_opts(self, opts):
         # Set the bootloader type.
         if opts.extlinux:
             self.bootloader._set_option("type", BootloaderType.EXTLINUX.value)
+        if opts.sdboot:
+            self.bootloader._set_option("type", BootloaderType.SDBOOT.value)
 
         # Set the boot loader flags.
         self.bootloader._set_option("nonibft_iscsi_boot", opts.nonibftiscsiboot)

pyanaconda/core/configuration/bootloader.py

@@ -23,8 +23,9 @@
 
 class BootloaderType(Enum):
     """Type of the bootloader."""
-    DEFAULT = "DEFAULT"
+    DEFAULT  = "DEFAULT"
     EXTLINUX = "EXTLINUX"
+    SDBOOT   = "SDBOOT"
 
 
 class BootloaderSection(Section):
@@ -38,6 +39,7 @@ def type(self):
 
             DEFAULT   Choose the type by platform.
             EXTLINUX  Use extlinux as the bootloader.
+            SDBOOT    Use systemd-boot as the bootloader.
 
         :return: an instance of BootloaderType
         """

pyanaconda/modules/storage/bootloader/bootloader.py

@@ -129,6 +129,9 @@ def _set_module_from_kickstart(self, data):
         if data.bootloader.extlinux:
             self.set_default_type(BootloaderType.EXTLINUX)
 
+        if data.bootloader.systemd:
+            self.set_default_type(BootloaderType.SDBOOT)
+
         if data.bootloader.bootDrive:
             self.set_drive(data.bootloader.bootDrive)
 
@@ -184,6 +187,9 @@ def setup_kickstart(self, data):
         if self.get_default_type() == BootloaderType.EXTLINUX:
             data.bootloader.extlinux = True
 
+        if self.get_default_type() == BootloaderType.SDBOOT:
+            data.bootloader.systemd = True
+
         if self.bootloader_mode == BootloaderMode.DISABLED:
             data.bootloader.disabled = True
             data.bootloader.location = "none"

pyanaconda/modules/storage/bootloader/factory.py

@@ -90,6 +90,15 @@ def get_class_by_name(cls, name):
             from pyanaconda.modules.storage.bootloader.extlinux import EXTLINUX
             return EXTLINUX
 
+        if name == "SDBOOT":
+            platform_class = platform.platform.__class__
+            if platform_class is platform.Aarch64EFI:
+                from pyanaconda.modules.storage.bootloader.efi import Aarch64EFISystemdBoot
+                return Aarch64EFISystemdBoot
+            if platform_class is platform.EFI:
+                from pyanaconda.modules.storage.bootloader.efi import x64EFISystemdBoot
+                return x64EFISystemdBoot
+
         return None
 
     @classmethod

pyanaconda/modules/storage/bootloader/installation.py

@@ -21,7 +21,8 @@
 from blivet.devices import BTRFSDevice
 from pyanaconda.core.constants import PAYLOAD_TYPE_RPM_OSTREE, PAYLOAD_LIVE_TYPES
 from pyanaconda.modules.storage.bootloader import BootLoaderError
-
+from pyanaconda.core.configuration.anaconda import conf
+from pyanaconda.core.configuration.bootloader import BootloaderType
 from pyanaconda.core.util import execWithRedirect
 from pyanaconda.modules.common.errors.installation import BootloaderInstallationError
 from pyanaconda.modules.storage.constants import BootloaderMode
@@ -192,6 +193,9 @@ def run(self):
         if self._payload_type == PAYLOAD_TYPE_RPM_OSTREE:
             log.debug("Don't regenerate initramfs on rpm-ostree systems.")
             return
+        if conf.bootloader.type == BootloaderType.SDBOOT:
+            log.debug("Don't regenerate initramfs on systemd-boot systems.")
+            return
 
         recreate_initrds(
             sysroot=self._sysroot,