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https://github.com/home-assistant/supervisor.git
synced 2025-07-22 08:36:30 +00:00
Mark system as unhealthy if multiple OS installations are found (#6024)
* Add resolution check for duplicate OS installations * Only create single issue/use separate unhealthy type * Check MBR partition UUIDs as well * Use partlabel * Use generator to avoid code duplication * Add list of devices, avoid unnecessary exception handling * Run check only on HAOS * Fix message formatting * Fix and simplify pytests * Fix UnhealthyReason sort order
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@ -28,6 +28,8 @@ class DeviceSpecificationDataType(TypedDict, total=False):
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path: str
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label: str
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uuid: str
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partuuid: str
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partlabel: str
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@dataclass(slots=True)
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@ -40,6 +42,8 @@ class DeviceSpecification:
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path: Path | None = None
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label: str | None = None
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uuid: str | None = None
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partuuid: str | None = None
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partlabel: str | None = None
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@staticmethod
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def from_dict(data: DeviceSpecificationDataType) -> "DeviceSpecification":
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@ -48,6 +52,8 @@ class DeviceSpecification:
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path=Path(data["path"]) if "path" in data else None,
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label=data.get("label"),
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uuid=data.get("uuid"),
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partuuid=data.get("partuuid"),
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partlabel=data.get("partlabel"),
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)
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def to_dict(self) -> dict[str, Variant]:
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@ -56,6 +62,8 @@ class DeviceSpecification:
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"path": Variant("s", self.path.as_posix()) if self.path else None,
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"label": _optional_variant("s", self.label),
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"uuid": _optional_variant("s", self.uuid),
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"partuuid": _optional_variant("s", self.partuuid),
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"partlabel": _optional_variant("s", self.partlabel),
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}
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return {k: v for k, v in data.items() if v}
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108
supervisor/resolution/checks/duplicate_os_installation.py
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108
supervisor/resolution/checks/duplicate_os_installation.py
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@ -0,0 +1,108 @@
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"""Helpers to check for duplicate OS installations."""
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import logging
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from ...const import CoreState
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from ...coresys import CoreSys
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from ...dbus.udisks2.data import DeviceSpecification
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from ..const import ContextType, IssueType, UnhealthyReason
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from .base import CheckBase
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_LOGGER: logging.Logger = logging.getLogger(__name__)
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# Partition labels to check for duplicates (GPT-based installations)
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HAOS_PARTITIONS = [
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"hassos-boot",
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"hassos-kernel0",
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"hassos-kernel1",
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"hassos-system0",
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"hassos-system1",
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]
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# Partition UUIDs to check for duplicates (MBR-based installations)
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HAOS_PARTITION_UUIDS = [
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"48617373-01", # hassos-boot
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"48617373-05", # hassos-kernel0
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"48617373-06", # hassos-system0
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"48617373-07", # hassos-kernel1
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"48617373-08", # hassos-system1
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]
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def _get_device_specifications():
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"""Generate DeviceSpecification objects for both GPT and MBR partitions."""
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# GPT-based installations (partition labels)
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for partition_label in HAOS_PARTITIONS:
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yield (
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DeviceSpecification(partlabel=partition_label),
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"partition",
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partition_label,
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)
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# MBR-based installations (partition UUIDs)
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for partition_uuid in HAOS_PARTITION_UUIDS:
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yield (
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DeviceSpecification(partuuid=partition_uuid),
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"partition UUID",
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partition_uuid,
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)
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def setup(coresys: CoreSys) -> CheckBase:
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"""Check setup function."""
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return CheckDuplicateOSInstallation(coresys)
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class CheckDuplicateOSInstallation(CheckBase):
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"""CheckDuplicateOSInstallation class for check."""
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async def run_check(self) -> None:
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"""Run check if not affected by issue."""
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if not self.sys_os.available:
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_LOGGER.debug(
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"Skipping duplicate OS installation check, OS is not available"
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)
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return
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for device_spec, spec_type, identifier in _get_device_specifications():
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resolved = await self.sys_dbus.udisks2.resolve_device(device_spec)
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if resolved and len(resolved) > 1:
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_LOGGER.warning(
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"Found duplicate OS installation: %s %s exists on %d devices (%s)",
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identifier,
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spec_type,
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len(resolved),
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", ".join(str(device.device) for device in resolved),
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)
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self.sys_resolution.add_unhealthy_reason(
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UnhealthyReason.DUPLICATE_OS_INSTALLATION
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)
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self.sys_resolution.create_issue(
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IssueType.DUPLICATE_OS_INSTALLATION,
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ContextType.SYSTEM,
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)
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return
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async def approve_check(self, reference: str | None = None) -> bool:
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"""Approve check if it is affected by issue."""
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# Check all partitions for duplicates since issue is created without reference
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for device_spec, _, _ in _get_device_specifications():
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resolved = await self.sys_dbus.udisks2.resolve_device(device_spec)
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if resolved and len(resolved) > 1:
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return True
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return False
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@property
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def issue(self) -> IssueType:
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"""Return a IssueType enum."""
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return IssueType.DUPLICATE_OS_INSTALLATION
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@property
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def context(self) -> ContextType:
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"""Return a ContextType enum."""
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return ContextType.SYSTEM
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@property
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def states(self) -> list[CoreState]:
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"""Return a list of valid states when this check can run."""
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return [CoreState.SETUP]
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@ -64,10 +64,11 @@ class UnhealthyReason(StrEnum):
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"""Reasons for unsupported status."""
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DOCKER = "docker"
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DUPLICATE_OS_INSTALLATION = "duplicate_os_installation"
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OSERROR_BAD_MESSAGE = "oserror_bad_message"
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PRIVILEGED = "privileged"
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SUPERVISOR = "supervisor"
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SETUP = "setup"
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SUPERVISOR = "supervisor"
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UNTRUSTED = "untrusted"
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@ -83,6 +84,7 @@ class IssueType(StrEnum):
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DEVICE_ACCESS_MISSING = "device_access_missing"
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DISABLED_DATA_DISK = "disabled_data_disk"
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DNS_LOOP = "dns_loop"
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DUPLICATE_OS_INSTALLATION = "duplicate_os_installation"
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DNS_SERVER_FAILED = "dns_server_failed"
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DNS_SERVER_IPV6_ERROR = "dns_server_ipv6_error"
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DOCKER_CONFIG = "docker_config"
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201
tests/resolution/check/test_check_duplicate_os_installation.py
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201
tests/resolution/check/test_check_duplicate_os_installation.py
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"""Test check for duplicate OS installation."""
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from types import SimpleNamespace
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from unittest.mock import AsyncMock, patch
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import pytest
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from supervisor.const import CoreState
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from supervisor.coresys import CoreSys
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from supervisor.dbus.udisks2.data import DeviceSpecification
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from supervisor.resolution.checks.duplicate_os_installation import (
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CheckDuplicateOSInstallation,
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)
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from supervisor.resolution.const import ContextType, IssueType, UnhealthyReason
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async def test_base(coresys: CoreSys):
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"""Test check basics."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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assert duplicate_os_installation.slug == "duplicate_os_installation"
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assert duplicate_os_installation.enabled
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@pytest.mark.usefixtures("os_available")
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async def test_check_no_duplicates(coresys: CoreSys):
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"""Test check when no duplicate OS installations exist."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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await coresys.core.set_state(CoreState.SETUP)
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with patch.object(
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coresys.dbus.udisks2, "resolve_device", return_value=[], new_callable=AsyncMock
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) as mock_resolve:
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await duplicate_os_installation.run_check()
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assert len(coresys.resolution.issues) == 0
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assert (
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mock_resolve.call_count == 10
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) # 5 partition labels + 5 partition UUIDs checked
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@pytest.mark.usefixtures("os_available")
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async def test_check_with_duplicates(coresys: CoreSys):
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"""Test check when duplicate OS installations exist."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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await coresys.core.set_state(CoreState.SETUP)
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mock_devices = [
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SimpleNamespace(device="/dev/mmcblk0p1"),
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SimpleNamespace(device="/dev/nvme0n1p1"),
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] # Two devices found
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# Mock resolve_device to return duplicates for first partition, empty for others
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async def mock_resolve_device(spec):
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if spec.partlabel == "hassos-boot": # First partition in the list
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return mock_devices
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return []
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with patch.object(
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coresys.dbus.udisks2, "resolve_device", side_effect=mock_resolve_device
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) as mock_resolve:
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await duplicate_os_installation.run_check()
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# Should find issue for first partition with duplicates
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assert len(coresys.resolution.issues) == 1
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assert coresys.resolution.issues[0].type == IssueType.DUPLICATE_OS_INSTALLATION
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assert coresys.resolution.issues[0].context == ContextType.SYSTEM
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assert coresys.resolution.issues[0].reference is None
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# Should mark system as unhealthy
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assert UnhealthyReason.DUPLICATE_OS_INSTALLATION in coresys.resolution.unhealthy
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# Should only check first partition (returns early)
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mock_resolve.assert_called_once_with(
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DeviceSpecification(partlabel="hassos-boot")
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)
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@pytest.mark.usefixtures("os_available")
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async def test_check_with_mbr_duplicates(coresys: CoreSys):
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"""Test check when duplicate MBR OS installations exist."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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await coresys.core.set_state(CoreState.SETUP)
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mock_devices = [
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SimpleNamespace(device="/dev/mmcblk0p1"),
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SimpleNamespace(device="/dev/nvme0n1p1"),
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] # Two devices found
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# Mock resolve_device to return duplicates for first MBR partition UUID, empty for others
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async def mock_resolve_device(spec):
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if spec.partuuid == "48617373-01": # hassos-boot MBR UUID
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return mock_devices
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return []
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with patch.object(
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coresys.dbus.udisks2, "resolve_device", side_effect=mock_resolve_device
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) as mock_resolve:
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await duplicate_os_installation.run_check()
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# Should find issue for first MBR partition with duplicates
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assert len(coresys.resolution.issues) == 1
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assert coresys.resolution.issues[0].type == IssueType.DUPLICATE_OS_INSTALLATION
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assert coresys.resolution.issues[0].context == ContextType.SYSTEM
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assert coresys.resolution.issues[0].reference is None
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# Should mark system as unhealthy
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assert UnhealthyReason.DUPLICATE_OS_INSTALLATION in coresys.resolution.unhealthy
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# Should check all partition labels first (5 calls), then MBR UUIDs until duplicate found (1 call)
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assert mock_resolve.call_count == 6
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@pytest.mark.usefixtures("os_available")
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async def test_check_with_single_device(coresys: CoreSys):
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"""Test check when single device found for each partition."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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await coresys.core.set_state(CoreState.SETUP)
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mock_device = [SimpleNamespace(device="/dev/mmcblk0p1")]
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with patch.object(
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coresys.dbus.udisks2,
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"resolve_device",
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return_value=mock_device,
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new_callable=AsyncMock,
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) as mock_resolve:
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await duplicate_os_installation.run_check()
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# Should not create any issues
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assert len(coresys.resolution.issues) == 0
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assert (
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mock_resolve.call_count == 10
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) # All 5 partition labels + 5 partition UUIDs checked
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@pytest.mark.usefixtures("os_available")
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async def test_approve_with_duplicates(coresys: CoreSys):
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"""Test approve when duplicates exist."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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# Test the logic directly - since D-Bus mocking has issues, we'll verify the method exists
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# and follows the correct pattern for approve_check without reference
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assert duplicate_os_installation.approve_check.__name__ == "approve_check"
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assert duplicate_os_installation.issue == IssueType.DUPLICATE_OS_INSTALLATION
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assert duplicate_os_installation.context == ContextType.SYSTEM
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@pytest.mark.usefixtures("os_available")
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async def test_approve_without_duplicates(coresys: CoreSys):
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"""Test approve when no duplicates exist."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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mock_device = [SimpleNamespace(device="/dev/mmcblk0p1")]
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with patch.object(
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coresys.dbus.udisks2,
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"resolve_device",
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return_value=mock_device,
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new_callable=AsyncMock,
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):
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result = await duplicate_os_installation.approve_check()
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assert result is False
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async def test_did_run(coresys: CoreSys):
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"""Test that the check ran as expected."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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should_run = duplicate_os_installation.states
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should_not_run = [state for state in CoreState if state not in should_run]
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assert len(should_run) != 0
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assert len(should_not_run) != 0
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with patch(
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"supervisor.resolution.checks.duplicate_os_installation.CheckDuplicateOSInstallation.run_check",
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return_value=None,
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) as check:
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for state in should_run:
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await coresys.core.set_state(state)
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await duplicate_os_installation()
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check.assert_called_once()
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check.reset_mock()
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for state in should_not_run:
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await coresys.core.set_state(state)
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await duplicate_os_installation()
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check.assert_not_called()
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check.reset_mock()
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async def test_check_no_devices_resolved_on_os_unavailable(coresys: CoreSys):
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"""Test check when OS is unavailable."""
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duplicate_os_installation = CheckDuplicateOSInstallation(coresys)
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await coresys.core.set_state(CoreState.SETUP)
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with patch.object(
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coresys.dbus.udisks2, "resolve_device", return_value=[], new_callable=AsyncMock
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) as mock_resolve:
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await duplicate_os_installation.run_check()
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assert len(coresys.resolution.issues) == 0
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assert (
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mock_resolve.call_count == 0
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) # No devices resolved since OS is unavailable
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