mirror of
https://github.com/dortania/OpenCore-Legacy-Patcher.git
synced 2026-04-14 04:38:20 +10:00
427 lines
25 KiB
Python
427 lines
25 KiB
Python
# Framework for mounting and patching macOS root volume
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# Copyright (C) 2020-2022, Dhinak G, Mykola Grymalyuk
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# System based off of Apple's Kernel Development Kit (KDK)
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# - https://developer.apple.com/download/all/
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# The system relies on mounting the APFS volume as a live read/write volume
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# We perform our required edits, then create a new snapshot for the system boot
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# The manual process is as follows:
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# 1. Mount the APFS volume as a read/write volume
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# 'sudo mount -o nobrowse -t apfs /dev/disk5s5 /System/Volumes/Update/mnt1'
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# 2. Perform edits to the system (ie. create new KernelCollection)
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# 'sudo kmutil install --volume-root /System/Volumes/Update/mnt1/ --update-all'
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# 3. Create a new snapshot for the system boot
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# 'sudo bless --folder /System/Volumes/Update/mnt1/System/Library/CoreServices --bootefi --create-snapshot'
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# Additionally Apple's APFS snapshot system supports system rollbacks:
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# 'sudo bless --mount /System/Volumes/Update/mnt1 --bootefi --last-sealed-snapshot'
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# Note: root volume rollbacks are unstable in Big Sur due to quickly discarding the original snapshot
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# - Generally within 2~ boots, the original snapshot is discarded
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# - Monterey always preserves the original snapshot allowing for reliable rollbacks
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# Alternative to mounting via 'mount', Apple's update system uses 'mount_apfs' directly
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# '/sbin/mount_apfs -R /dev/disk5s5 /System/Volumes/Update/mnt1'
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import shutil
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import subprocess
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from pathlib import Path
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from resources import constants, utilities, sys_patch_download, sys_patch_detect, sys_patch_auto, sys_patch_helpers
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from data import os_data
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class PatchSysVolume:
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def __init__(self, model, versions, hardware_details=None):
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self.model = model
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self.constants: constants.Constants() = versions
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self.computer = self.constants.computer
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self.root_mount_path = None
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self.root_supports_snapshot = utilities.check_if_root_is_apfs_snapshot()
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self.constants.root_patcher_succeded = False # Reset Variable each time we start
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self.constants.needs_to_open_preferences = False
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self.patch_set_dictionary = {}
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self.needs_kmutil_exemptions = False # For '/Library/Extensions' rebuilds
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# GUI will detect hardware patches before starting PatchSysVolume()
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# However the TUI will not, so allow for data to be passed in manually avoiding multiple calls
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if hardware_details is None:
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hardware_details = sys_patch_detect.detect_root_patch(self.computer.real_model, self.constants).detect_patch_set()
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self.hardware_details = hardware_details
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self.init_pathing(custom_root_mount_path=None, custom_data_mount_path=None)
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def __del__(self):
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# Ensures that each time we're patching, we're using a clean repository
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if Path(self.constants.payload_local_binaries_root_path).exists():
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shutil.rmtree(self.constants.payload_local_binaries_root_path)
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def init_pathing(self, custom_root_mount_path=None, custom_data_mount_path=None):
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if custom_root_mount_path and custom_data_mount_path:
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self.mount_location = custom_root_mount_path
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self.data_mount_location = custom_data_mount_path
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elif self.root_supports_snapshot is True:
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# Big Sur and newer use APFS snapshots
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self.mount_location = "/System/Volumes/Update/mnt1"
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self.mount_location_data = ""
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else:
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self.mount_location = ""
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self.mount_location_data = ""
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self.mount_extensions = f"{self.mount_location}/System/Library/Extensions"
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self.mount_application_support = f"{self.mount_location_data}/Library/Application Support"
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def mount_root_vol(self):
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# Returns boolean if Root Volume is available
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self.root_mount_path = utilities.get_disk_path()
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if self.root_mount_path.startswith("disk"):
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print(f"- Found Root Volume at: {self.root_mount_path}")
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if Path(self.mount_extensions).exists():
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print("- Root Volume is already mounted")
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return True
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else:
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if self.root_supports_snapshot is True:
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print("- Mounting APFS Snapshot as writable")
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result = utilities.elevated(["mount", "-o", "nobrowse", "-t", "apfs", f"/dev/{self.root_mount_path}", self.mount_location], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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if result.returncode == 0:
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print(f"- Mounted APFS Snapshot as writable at: {self.mount_location}")
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if Path(self.mount_extensions).exists():
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print("- Successfully mounted the Root Volume")
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return True
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else:
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print("- Root Volume appears to have unmounted unexpectedly")
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else:
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print("- Unable to mount APFS Snapshot as writable")
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print("Reason for mount failure:")
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print(result.stdout.decode().strip())
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return False
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def unpatch_root_vol(self):
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if self.constants.detected_os > os_data.os_data.catalina and self.root_supports_snapshot is True:
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print("- Reverting to last signed APFS snapshot")
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result = utilities.elevated(["bless", "--mount", self.mount_location, "--bootefi", "--last-sealed-snapshot"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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if result.returncode != 0:
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print("- Unable to revert root volume patches")
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print("Reason for unpatch Failure:")
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print(result.stdout.decode())
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print("- Failed to revert snapshot via Apple's 'bless' command")
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else:
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self.clean_skylight_plugins()
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self.delete_nonmetal_enforcement()
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self.constants.root_patcher_succeded = True
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print("- Unpatching complete")
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print("\nPlease reboot the machine for patches to take effect")
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def rebuild_snapshot(self):
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print("- Rebuilding Kernel Cache (This may take some time)")
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if self.constants.detected_os > os_data.os_data.catalina:
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args = ["kmutil", "install", "--volume-root", self.mount_location, "--update-all"]
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if self.needs_kmutil_exemptions is True:
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# When installing to '/Library/Extensions', following args skip kext consent
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# prompt in System Preferences when SIP's disabled
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print(" (You will get a prompt by System Preferences, ignore for now)")
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args.append("--no-authentication")
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args.append("--no-authorization")
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self.constants.needs_to_open_preferences = True # Notify in GUI to open System Preferences
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else:
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args = ["kextcache", "-i", f"{self.mount_location}/"]
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result = utilities.elevated(args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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# kextcache notes:
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# - kextcache always returns 0, even if it fails
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# - Check the output for 'KernelCache ID' to see if the cache was successfully rebuilt
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# kmutil notes:
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# - will return 71 on failure to build KCs
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# - will return 31 on 'No binaries or codeless kexts were provided'
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# - will return -10 if the volume is missing (ie. unmounted by another process)
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if result.returncode != 0 or (self.constants.detected_os < os_data.os_data.catalina and "KernelCache ID" not in result.stdout.decode()):
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print("- Unable to build new kernel cache")
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print(f"\nReason for Patch Failure ({result.returncode}):")
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print(result.stdout.decode())
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print("")
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print("\nPlease reboot the machine to avoid potential issues rerunning the patcher")
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if self.constants.gui_mode is False:
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input("Press [ENTER] to continue")
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else:
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print("- Successfully built new kernel cache")
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self.update_preboot_kernel_cache()
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self.rebuild_dyld_shared_cache()
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if self.root_supports_snapshot is True:
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print("- Creating new APFS snapshot")
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bless = utilities.elevated(
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["bless", "--folder", f"{self.mount_location}/System/Library/CoreServices", "--bootefi", "--create-snapshot"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT
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)
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if bless.returncode != 0:
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print("- Unable to create new snapshot")
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print("Reason for snapshot failure:")
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print(bless.stdout.decode())
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if "Can't use last-sealed-snapshot or create-snapshot on non system volume" in bless.stdout.decode():
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print("- This is an APFS bug with Monterey! Perform a clean installation to ensure your APFS volume is built correctly")
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return
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else:
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self.unmount_drive()
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print("- Patching complete")
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print("\nPlease reboot the machine for patches to take effect")
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if self.needs_kmutil_exemptions is True:
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print("Note: Apple will require you to open System Preferences -> Security to allow the new kernel extensions to be loaded")
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self.constants.root_patcher_succeded = True
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if self.constants.gui_mode is False:
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input("\nPress [ENTER] to continue")
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def unmount_drive(self):
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print("- Unmounting Root Volume (Don't worry if this fails)")
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utilities.elevated(["diskutil", "unmount", self.root_mount_path], stdout=subprocess.PIPE).stdout.decode().strip().encode()
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def rebuild_dyld_shared_cache(self):
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if self.constants.detected_os <= os_data.os_data.catalina:
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print("- Rebuilding dyld shared cache")
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utilities.process_status(utilities.elevated(["update_dyld_shared_cache", "-root", f"{self.mount_location}/"]))
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def update_preboot_kernel_cache(self):
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if self.constants.detected_os == os_data.os_data.catalina:
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print("- Rebuilding preboot kernel cache")
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utilities.process_status(utilities.elevated(["kcditto"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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def clean_skylight_plugins(self):
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if (Path(self.mount_application_support) / Path("SkyLightPlugins/")).exists():
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print("- Found SkylightPlugins folder, removing old plugins")
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utilities.process_status(utilities.elevated(["rm", "-Rf", f"{self.mount_application_support}/SkyLightPlugins"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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utilities.process_status(utilities.elevated(["mkdir", f"{self.mount_application_support}/SkyLightPlugins"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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else:
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print("- Creating SkylightPlugins folder")
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utilities.process_status(utilities.elevated(["mkdir", "-p", f"{self.mount_application_support}/SkyLightPlugins/"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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def delete_nonmetal_enforcement(self):
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use_metal = subprocess.run(["defaults", "read", "/Library/Preferences/com.apple.CoreDisplay", "useMetal"], stdout=subprocess.PIPE).stdout.decode("utf-8").strip()
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use_iop = subprocess.run(["defaults", "read", "/Library/Preferences/com.apple.CoreDisplay", "useIOP"], stdout=subprocess.PIPE).stdout.decode("utf-8").strip()
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if use_metal or use_iop in ["1", "true"]:
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print("- Removing non-Metal Enforcement Preferences")
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utilities.elevated(["defaults", "delete", "/Library/Preferences/com.apple.CoreDisplay", "useMetal"])
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utilities.elevated(["defaults", "delete", "/Library/Preferences/com.apple.CoreDisplay", "useIOP"])
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def write_patchset(self, patchset):
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destination_path = f"{self.mount_location}/System/Library/CoreServices"
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file_name = "OpenCore-Legacy-Patcher.plist"
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destination_path_file = f"{destination_path}/{file_name}"
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if sys_patch_helpers.sys_patch_helpers(self.constants).generate_patchset_plist(patchset, file_name):
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print("- Writing patchset information to Root Volume")
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if Path(destination_path_file).exists():
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utilities.process_status(utilities.elevated(["rm", destination_path_file], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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utilities.process_status(utilities.elevated(["cp", f"{self.constants.payload_path}/{file_name}", destination_path], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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def patch_root_vol(self):
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print(f"- Running patches for {self.model}")
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if self.patch_set_dictionary != {}:
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self.execute_patchset(self.patch_set_dictionary)
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else:
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self.execute_patchset(sys_patch_detect.detect_root_patch(self.computer.real_model, self.constants).generate_patchset(self.hardware_details))
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if self.constants.wxpython_variant is True and self.constants.detected_os >= os_data.os_data.big_sur:
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sys_patch_auto.AutomaticSysPatch.install_auto_patcher_launch_agent(self.constants)
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self.rebuild_snapshot()
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def execute_patchset(self, required_patches):
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source_files_path = str(self.constants.payload_local_binaries_root_path)
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self.preflight_checks(required_patches, source_files_path)
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for patch in required_patches:
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print("- Installing Patchset: " + patch)
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if "Remove" in required_patches[patch]:
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for remove_patch_directory in required_patches[patch]["Remove"]:
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print("- Remove Files at: " + remove_patch_directory)
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for remove_patch_file in required_patches[patch]["Remove"][remove_patch_directory]:
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destination_folder_path = str(self.mount_location) + remove_patch_directory
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self.remove_file(destination_folder_path, remove_patch_file)
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for method_install in ["Install", "Install Non-Root"]:
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if method_install in required_patches[patch]:
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for install_patch_directory in required_patches[patch][method_install]:
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print(f"- Handling Installs in: {install_patch_directory}")
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for install_file in required_patches[patch][method_install][install_patch_directory]:
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source_folder_path = source_files_path + "/" + required_patches[patch][method_install][install_patch_directory][install_file] + install_patch_directory
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if method_install == "Install":
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destination_folder_path = str(self.mount_location) + install_patch_directory
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else:
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if install_patch_directory == "/Library/Extensions":
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self.needs_kmutil_exemptions = True
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destination_folder_path = str(self.mount_location_data) + install_patch_directory
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self.install_new_file(source_folder_path, destination_folder_path, install_file)
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if "Processes" in required_patches[patch]:
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for process in required_patches[patch]["Processes"]:
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# Some processes need sudo, however we cannot directly call sudo in some scenarios
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# Instead, call elevated funtion is string's boolean is True
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if required_patches[patch]["Processes"][process] is True:
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print(f"- Running Process as Root:\n{process}")
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utilities.process_status(utilities.elevated(process.split(" "), stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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else:
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print(f"- Running Process:\n{process}")
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utilities.process_status(subprocess.run(process, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True))
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self.write_patchset(required_patches)
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def preflight_checks(self, required_patches, source_files_path):
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print("- Running Preflight Checks before patching")
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# Make sure old SkyLight plugins aren't being used
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self.clean_skylight_plugins()
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# Make sure non-Metal Enforcement preferences are not present
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self.delete_nonmetal_enforcement()
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# Make sure SNB kexts are compatible with the host
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if "Intel Sandy Bridge" in required_patches:
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sys_patch_helpers.sys_patch_helpers(self.constants).snb_board_id_patch(source_files_path)
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for patch in required_patches:
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# Check if all files are present
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for method_type in ["Install", "Install Non-Root"]:
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if method_type in required_patches[patch]:
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for install_patch_directory in required_patches[patch][method_type]:
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for install_file in required_patches[patch][method_type][install_patch_directory]:
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source_file = source_files_path + "/" + required_patches[patch][method_type][install_patch_directory][install_file] + install_patch_directory + "/" + install_file
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if not Path(source_file).exists():
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raise Exception(f"Failed to find {source_file}")
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print("- Finished Preflight, starting patching")
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def install_new_file(self, source_folder, destination_folder, file_name):
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# .frameworks are merged
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# .kexts and .apps are deleted and replaced
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file_name_str = str(file_name)
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if file_name_str.endswith(".framework"):
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# merge with rsync
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print(f" - Installing: {file_name}")
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utilities.elevated(["rsync", "-r", "-i", "-a", f"{source_folder}/{file_name}", f"{destination_folder}/"], stdout=subprocess.PIPE)
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self.fix_permissions(destination_folder + "/" + file_name)
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elif Path(source_folder + "/" + file_name_str).is_dir():
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# Applicable for .kext, .app, .plugin, .bundle, all of which are directories
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if Path(destination_folder + "/" + file_name).exists():
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print(f" - Found existing {file_name}, overwritting...")
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utilities.process_status(utilities.elevated(["rm", "-R", f"{destination_folder}/{file_name}"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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else:
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print(f" - Installing: {file_name}")
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utilities.process_status(utilities.elevated(["cp", "-R", f"{source_folder}/{file_name}", destination_folder], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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self.fix_permissions(destination_folder + "/" + file_name)
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else:
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# Assume it's an individual file, replace as normal
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if Path(destination_folder + "/" + file_name).exists():
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print(f" - Found existing {file_name}, overwritting...")
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utilities.process_status(utilities.elevated(["rm", f"{destination_folder}/{file_name}"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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else:
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print(f" - Installing: {file_name}")
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utilities.process_status(utilities.elevated(["cp", f"{source_folder}/{file_name}", destination_folder], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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self.fix_permissions(destination_folder + "/" + file_name)
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def remove_file(self, destination_folder, file_name):
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if Path(destination_folder + "/" + file_name).exists():
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print(f" - Removing: {file_name}")
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if Path(destination_folder + "/" + file_name).is_dir():
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utilities.process_status(utilities.elevated(["rm", "-R", f"{destination_folder}/{file_name}"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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else:
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utilities.process_status(utilities.elevated(["rm", f"{destination_folder}/{file_name}"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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def fix_permissions(self, destination_file):
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chmod_args = ["chmod", "-Rf", "755", destination_file]
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chown_args = ["chown", "-Rf", "root:wheel", destination_file]
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if not Path(destination_file).is_dir():
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# Strip recursive arguments
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chmod_args.pop(1)
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chown_args.pop(1)
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utilities.process_status(utilities.elevated(chmod_args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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utilities.process_status(utilities.elevated(chown_args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
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def check_files(self):
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if Path(self.constants.payload_local_binaries_root_path).exists():
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print("- Found local Apple Binaries")
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if self.constants.gui_mode is False:
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patch_input = input("Would you like to redownload?(y/n): ")
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if patch_input in {"y", "Y", "yes", "Yes"}:
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shutil.rmtree(Path(self.constants.payload_local_binaries_root_path))
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output = self.download_files()
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else:
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output = True
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else:
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output = self.download_files()
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else:
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output = self.download_files()
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return output
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def download_files(self):
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if self.constants.cli_mode is True:
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download_result, link = sys_patch_download.grab_patcher_support_pkg(self.constants).download_files()
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else:
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download_result = True
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link = sys_patch_download.grab_patcher_support_pkg(self.constants).generate_pkg_link()
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if download_result and self.constants.payload_local_binaries_root_path_zip.exists():
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print("- Unzipping binaries...")
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utilities.process_status(subprocess.run(["ditto", "-V", "-x", "-k", "--sequesterRsrc", "--rsrc", self.constants.payload_local_binaries_root_path_zip, self.constants.payload_path], stdout=subprocess.PIPE, stderr=subprocess.STDOUT))
|
|
print("- Binaries downloaded to:")
|
|
print(self.constants.payload_path)
|
|
return self.constants.payload_local_binaries_root_path
|
|
else:
|
|
if self.constants.gui_mode is True:
|
|
print("- Download failed, please verify the below link work:")
|
|
print(link)
|
|
print("\nIf you continue to have issues, try using the Offline builds")
|
|
print("located on Github next to the other builds")
|
|
else:
|
|
input("\nPress enter to continue")
|
|
return None
|
|
|
|
# Entry Function
|
|
def start_patch(self):
|
|
print("- Starting Patch Process")
|
|
print(f"- Determining Required Patch set for Darwin {self.constants.detected_os}")
|
|
self.patch_set_dictionary = sys_patch_detect.detect_root_patch(self.computer.real_model, self.constants).generate_patchset(self.hardware_details)
|
|
|
|
if self.patch_set_dictionary == {}:
|
|
change_menu = None
|
|
print("- No Root Patches required for your machine!")
|
|
if self.constants.gui_mode is False:
|
|
input("\nPress [ENTER] to return to the main menu: ")
|
|
elif self.constants.gui_mode is False:
|
|
change_menu = input("Would you like to continue with Root Volume Patching?(y/n): ")
|
|
else:
|
|
change_menu = "y"
|
|
print("- Continuing root patching")
|
|
if change_menu in ["y", "Y"]:
|
|
print("- Verifying whether Root Patching possible")
|
|
if sys_patch_detect.detect_root_patch(self.computer.real_model, self.constants).verify_patch_allowed(print_errors=not self.constants.wxpython_variant) is True:
|
|
print("- Patcher is capable of patching")
|
|
if self.check_files():
|
|
if self.mount_root_vol() is True:
|
|
self.patch_root_vol()
|
|
if self.constants.gui_mode is False:
|
|
input("\nPress [ENTER] to return to the main menu")
|
|
else:
|
|
print("- Recommend rebooting the machine and trying to patch again")
|
|
if self.constants.gui_mode is False:
|
|
input("- Press [ENTER] to exit: ")
|
|
elif self.constants.gui_mode is False:
|
|
input("\nPress [ENTER] to return to the main menu: ")
|
|
|
|
else:
|
|
print("- Returning to main menu")
|
|
|
|
def start_unpatch(self):
|
|
print("- Starting Unpatch Process")
|
|
if sys_patch_detect.detect_root_patch(self.computer.real_model, self.constants).verify_patch_allowed(print_errors=True) is True:
|
|
if self.mount_root_vol() is True:
|
|
self.unpatch_root_vol()
|
|
if self.constants.gui_mode is False:
|
|
input("\nPress [ENTER] to return to the main menu")
|
|
else:
|
|
print("- Recommend rebooting the machine and trying to patch again")
|
|
if self.constants.gui_mode is False:
|
|
input("- Press [ENTER] to exit: ")
|
|
elif self.constants.gui_mode is False:
|
|
input("\nPress [ENTER] to return to the main menu")
|