88 lines
2.9 KiB
Python
88 lines
2.9 KiB
Python
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#
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# Rescue tasks
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#
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# Copyright (C) 2019 Red Hat, Inc.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions of
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# the GNU General Public License v.2, or (at your option) any later version.
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY expressed or implied, including the implied warranties of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details. You should have received a copy of the
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# GNU General Public License along with this program; if not, write to the
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# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
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# source code or documentation are not subject to the GNU General Public
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# License and may only be used or replicated with the express permission of
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# Red Hat, Inc.
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#
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from blivet.errors import StorageError
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from pyanaconda.anaconda_loggers import get_module_logger
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from pyanaconda.modules.common.errors.storage import MountFilesystemError
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from pyanaconda.modules.storage.devicetree.root import find_existing_installations, mount_existing_system
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from pyanaconda.modules.common.task import Task
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log = get_module_logger(__name__)
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__all__ = ["FindExistingSystemsTask", "MountExistingSystemTask"]
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class FindExistingSystemsTask(Task):
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"""A task to find existing GNU/Linux installations."""
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def __init__(self, devicetree):
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"""Create a new task.
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:param devicetree: a device tree to search
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"""
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super().__init__()
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self._devicetree = devicetree
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@property
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def name(self):
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return "Find existing operating systems"
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def run(self):
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"""Run the task.
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:return: a list of data about found systems
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"""
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return find_existing_installations(devicetree=self._devicetree)
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class MountExistingSystemTask(Task):
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"""A task to mount an existing GNU/Linux installation."""
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def __init__(self, storage, device, read_only):
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"""Create a new task.
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:param storage: an instance of the Blivet's storage
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:param device: a root device of the system
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:param read_only: mount the system in read-only mode
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"""
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super().__init__()
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self._storage = storage
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self._device = device
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self._read_only = read_only
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@property
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def name(self):
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return "Mount an existing operating system"
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def run(self):
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"""Run the task.
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:raise: MountFilesystemError in case of failure
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"""
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try:
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mount_existing_system(
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storage=self._storage,
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root_device=self._device,
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read_only=self._read_only
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)
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except StorageError as e:
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log.error("Failed to mount the system: %s", e)
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raise MountFilesystemError(str(e)) from e
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