From 3fe5f8fb95a444ecb5b8489736a2e33419746f93 Mon Sep 17 00:00:00 2001 From: Christian Breunig Date: Tue, 15 Apr 2025 20:47:09 +0200 Subject: grub: T7327: honor "system option kernel" settings during image upgrade When performing an image upgrade and Linux Kernel command-line option that should be passed via GRUB to the Linux Kernel are missing on the first boot. This is because when generating the GRUB command-line via the op-mode scripts the CLI nodes defining the options are not honored. This commit re-implements the code-path in op-mode which generates the strings passed via GRUB to the Linux Kernel command-line. NOTE: If (for a yet unknown reason) a Kernel command-line option string changes during a major - or minor - upgrade of the Linux Kernel, we will need to adapt that logic and possibly call a helper from within the NEW updated image rootfs. Thus we can ship future information back into the past like the "Grays Sports Almanac" from Back to the Future Part II. --- src/conf_mode/system_option.py | 7 +++++-- src/op_mode/image_installer.py | 44 ++++++++++++++++++++++++++++++++++++------ 2 files changed, 43 insertions(+), 8 deletions(-) (limited to 'src') diff --git a/src/conf_mode/system_option.py b/src/conf_mode/system_option.py index 064a1aa91..b45a9d8a6 100755 --- a/src/conf_mode/system_option.py +++ b/src/conf_mode/system_option.py @@ -122,6 +122,10 @@ def generate(options): render(ssh_config, 'system/ssh_config.j2', options) render(usb_autosuspend, 'system/40_usb_autosuspend.j2', options) + # XXX: This code path and if statements must be kept in sync with the Kernel + # option handling in image_installer.py:get_cli_kernel_options(). This + # occurance is used for having the appropriate options passed to GRUB + # when re-configuring options on the CLI. cmdline_options = [] if 'kernel' in options: if 'disable_mitigations' in options['kernel']: @@ -131,8 +135,7 @@ def generate(options): if 'amd_pstate_driver' in options['kernel']: mode = options['kernel']['amd_pstate_driver'] cmdline_options.append( - f'initcall_blacklist=acpi_cpufreq_init amd_pstate={mode}' - ) + f'initcall_blacklist=acpi_cpufreq_init amd_pstate={mode}') grub_util.update_kernel_cmdline_options(' '.join(cmdline_options)) return None diff --git a/src/op_mode/image_installer.py b/src/op_mode/image_installer.py index 179913f15..2660309a5 100755 --- a/src/op_mode/image_installer.py +++ b/src/op_mode/image_installer.py @@ -24,7 +24,9 @@ from glob import glob from sys import exit from os import environ from os import readlink -from os import getpid, getppid +from os import getpid +from os import getppid +from json import loads from typing import Union from urllib.parse import urlparse from passlib.hosts import linux_context @@ -35,15 +37,23 @@ from psutil import disk_partitions from vyos.base import Warning from vyos.configtree import ConfigTree from vyos.remote import download -from vyos.system import disk, grub, image, compat, raid, SYSTEM_CFG_VER +from vyos.system import disk +from vyos.system import grub +from vyos.system import image +from vyos.system import compat +from vyos.system import raid +from vyos.system import SYSTEM_CFG_VER +from vyos.system import grub_util from vyos.template import render from vyos.utils.auth import ( DEFAULT_PASSWORD, EPasswdStrength, evaluate_strength ) +from vyos.utils.dict import dict_search from vyos.utils.io import ask_input, ask_yes_no, select_entry from vyos.utils.file import chmod_2775 +from vyos.utils.file import read_file from vyos.utils.process import cmd, run, rc_cmd from vyos.version import get_version_data @@ -477,6 +487,25 @@ def setup_grub(root_dir: str) -> None: render(grub_cfg_menu, grub.TMPL_GRUB_MENU, {}) render(grub_cfg_options, grub.TMPL_GRUB_OPTS, {}) +def get_cli_kernel_options(config_file: str) -> list: + config = ConfigTree(read_file(config_file)) + config_dict = loads(config.to_json()) + kernel_options = dict_search('system.option.kernel', config_dict) + cmdline_options = [] + + # XXX: This code path and if statements must be kept in sync with the Kernel + # option handling in system_options.py:generate(). This occurance is used + # for having the appropriate options passed to GRUB after an image upgrade! + if 'disable-mitigations' in kernel_options: + cmdline_options.append('mitigations=off') + if 'disable-power-saving' in kernel_options: + cmdline_options.append('intel_idle.max_cstate=0 processor.max_cstate=1') + if 'amd-pstate-driver' in kernel_options: + mode = kernel_options['amd-pstate-driver'] + cmdline_options.append( + f'initcall_blacklist=acpi_cpufreq_init amd_pstate={mode}') + + return cmdline_options def configure_authentication(config_file: str, password: str) -> None: """Write encrypted password to config file @@ -491,10 +520,7 @@ def configure_authentication(config_file: str, password: str) -> None: plaintext exposed """ encrypted_password = linux_context.hash(password) - - with open(config_file) as f: - config_string = f.read() - + config_string = read_file(config_file) config = ConfigTree(config_string) config.set([ 'system', 'login', 'user', 'vyos', 'authentication', @@ -1045,6 +1071,12 @@ def add_image(image_path: str, vrf: str = None, username: str = '', if set_as_default: grub.set_default(image_name, root_dir) + cmdline_options = get_cli_kernel_options( + f'{target_config_dir}/config.boot') + grub_util.update_kernel_cmdline_options(' '.join(cmdline_options), + root_dir=root_dir, + version=image_name) + except OSError as e: # if no space error, remove image dir and cleanup if e.errno == ENOSPC: -- cgit v1.2.3