Add apfs_aligned.efi driver

CHANGELOG.md

@@ -1,6 +1,7 @@
 # OpenCore Legacy Patcher changelog
 
 ## 3.0.0
+- Restore support for FileVault 2 on macOS 26
 
 ## 2.4.0
 - Reduce CPU usage on main UI thread

opencore_legacy_patcher/constants.py

@@ -322,6 +322,10 @@ class Constants:
         return self.payload_path / Path("ACPI/SSDT-DGPU.aml")
 
     # Drivers
+    @property
+    def sequoia_apfs_driver_path(self):
+        return self.payload_path / Path("Drivers/apfs_aligned.efi")
+
     @property
     def nvme_driver_path(self):
         return self.payload_path / Path("Drivers/NvmExpressDxe.efi")

opencore_legacy_patcher/efi_builder/firmware.py

@@ -216,6 +216,14 @@ class BuildFirmware:
         if not "CPU Generation" in smbios_data.smbios_dictionary[self.model]:
             return
 
+        # APFS check
+        # The macOS 26 APFS EFI driver's FileVault 2 implementation is broken, and
+        # must be replaced with the macOS 15 APFS EFI driver.
+        logging.info("- Enabling macOS 26 FileVault 2 support")
+        self.config["UEFI"]["APFS"]["EnableJumpstart"] = False
+        shutil.copy(self.constants.sequoia_apfs_driver_path, self.constants.drivers_path)
+        support.BuildSupport(self.model, self.constants, self.config).get_efi_binary_by_path("apfs_aligned.efi", "UEFI", "Drivers")["Enabled"] = True
+
         # Exfat check
         if smbios_data.smbios_dictionary[self.model]["CPU Generation"] < cpu_data.CPUGen.sandy_bridge.value:
             # Sandy Bridge and newer Macs natively support ExFat

payloads/Config/config.plist

@@ -2936,6 +2936,18 @@
 				<key>LoadEarly</key>
 				<false/>
 			</dict>
+			<dict>
+				<key>Comment</key>
+				<string></string>
+				<key>Path</key>
+				<string>apfs_aligned.efi</string>
+				<key>Enabled</key>
+				<false/>
+				<key>Arguments</key>
+				<string></string>
+				<key>LoadEarly</key>
+				<false/>
+			</dict>
 			<dict>
 				<key>Comment</key>
 				<string></string>