From 567fea276e16902be01f80cfb7be335f8d414622 Mon Sep 17 00:00:00 2001 From: Alejandro Sirgo Rica Date: Mon, 22 Apr 2024 10:59:55 +0200 Subject: utils: add postinstall.py Replace ConfigureOs script by native calls to: - update BCD via hivex using bcd.py and winreg.py infrastructure. - restore efi bootloader restore_windows_efi_bootloader(). Call legacy scripts for remaining postinstall procedures to replace them incrementally. Define variable CONFIGUREOS_LEGACY_ENABLED as False by default. Run legacy configureOs when CONFIGUREOS_LEGACY_ENABLED = True. This serves as a auxiliar method to keep the restoration functional in case of problems with the new configure_os logic. --- src/utils/postinstall.py | 170 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 170 insertions(+) create mode 100644 src/utils/postinstall.py (limited to 'src/utils/postinstall.py') diff --git a/src/utils/postinstall.py b/src/utils/postinstall.py new file mode 100644 index 0000000..f6332b0 --- /dev/null +++ b/src/utils/postinstall.py @@ -0,0 +1,170 @@ +# +# Copyright (C) 2022 Soleta Networks +# +# This program is free software: you can redistribute it and/or modify it under +# the terms of the GNU Affero General Public License as published by the +# Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. + +import subprocess +import shutil +import logging +import hivex +from src.log import OgError +from src.utils.bcd import update_bcd +from src.utils.probe import * +from src.utils.disk import * +from src.utils.winreg import * +from src.utils.fs import * +from src.utils.uefi import * +from socket import gethostname + +CONFIGUREOS_LEGACY_ENABLED = False + + +def configure_os_custom(disk, partition): + if not shutil.which('configureOsCustom'): + raise OgError('configureOsCustom not found') + + cmd_configure = f"configureOsCustom {disk} {partition}" + + try: + proc = subprocess.run(cmd_configure, + stdout=subprocess.PIPE, + encoding='utf-8', + shell=True, + check=True) + out = proc.stdout + except OSError as e: + raise OgError(f'Error processing configureOsCustom: {e}') from e + + +def windows_register_c_drive(disk, partition): + cmd_configure = f"ogWindowsRegisterPartition {disk} {partition} C {disk} {partition}" + + try: + proc = subprocess.run(cmd_configure, + stdout=subprocess.PIPE, + encoding='utf-8', + shell=True, + check=True) + except OSError as e: + raise OgError(f'Error processing ogWindowsRegisterPartition: {e}') from e + + +def configure_mbr_boot_sector(disk, partition): + cmd_configure = f"ogFixBootSector {disk} {partition}" + + try: + proc = subprocess.run(cmd_configure, + stdout=subprocess.PIPE, + encoding='utf-8', + shell=True, + check=True) + except OSError as e: + raise OgError(f'Error processing ogFixBootSector: {e}') from e + + +def configure_grub_in_mbr(disk, partition): + cmd_configure = f"ogGrubInstallMbr {disk} {partition} TRUE" + + try: + proc = subprocess.run(cmd_configure, + stdout=subprocess.PIPE, + encoding='utf-8', + shell=True, + check=True) + except OSError as e: + raise OgError(f'Error processing ogGrubInstallMbr: {e}') from e + + +def configure_fstab(disk, partition): + cmd_configure = f"ogConfigureFstab {disk} {partition}" + + try: + proc = subprocess.run(cmd_configure, + stdout=subprocess.PIPE, + encoding='utf-8', + shell=True, + check=True) + except OSError as e: + raise OgError(f'Error processing ogConfigureFstab: {e}') from e + + +def install_grub(disk, partition): + cmd_configure = f"ogGrubInstallPartition {disk} {partition}" + + try: + proc = subprocess.run(cmd_configure, + stdout=subprocess.PIPE, + encoding='utf-8', + shell=True, + check=True) + except OSError as e: + raise OgError(f'Error processing ogGrubInstallPartition: {e}') from e + + +def configure_os_linux(disk, partition): + configure_fstab(disk, partition) + + if is_uefi_supported(): + _, _, esp_part_number = get_efi_partition(disk, enforce_gpt=True) + configure_grub_in_mbr(disk, esp_part_number) + + install_grub(disk, partition) + + +def configure_os_windows(disk, partition): + if is_uefi_supported(): + restore_windows_efi_bootloader(disk, partition) + + _, _, esp_part_number = get_efi_partition(disk, enforce_gpt=True) + configure_grub_in_mbr(disk, esp_part_number) + else: + configure_mbr_boot_sector(disk, partition) + + update_bcd(disk, partition) + windows_register_c_drive(disk, partition) + + +def configure_os_legacy(disk, partition): + cmd_configure = f"configureOs {disk} {partition}" + + try: + proc = subprocess.run(cmd_configure, + stdout=subprocess.PIPE, + encoding='utf-8', + shell=True, + check=True) + out = proc.stdout + except OSError as e: + raise OgError(f'Error processing configureOs: {e}') from e + + +def configure_os(disk, partition): + if CONFIGUREOS_LEGACY_ENABLED: + configure_os_legacy(disk, partition) + + if shutil.which('configureOsCustom'): + configure_os_custom(disk, partition) + + return + + device = get_partition_device(disk, partition) + mountpoint = device.replace('dev', 'mnt') + + if not mount_mkdir(device, mountpoint): + raise OgError(f'Cannot probe OS family. Unable to mount {device} into {mountpoint}') + + os_family = get_os_family(mountpoint) + umount(mountpoint) + + extend_filesystem(disk, partition) + + if os_family == OSFamily.WINDOWS: + configure_os_windows(disk, partition) + elif os_family == OSFamily.LINUX: + configure_os_linux(disk, partition) + + if shutil.which('configureOsCustom'): + configure_os_custom(disk, partition) -- cgit v1.2.3-18-g5258