Q&A
/mnt/c は Windows のファイルシステムだから、WSL 側が期待するパーミッションを設定できないのでしょう。export JUPUTER_ALLOW_INSECURE_WRITES=True とするといいかも。
https://github.com/jupyter/notebook/issues/5197
背景
WSLやjupyterのホームディレクトリを/home/<username>/から/mnt/c/linux_home/に移動させました。以降、jupyter lab上でどのファイルを開いても、カーネルを選択する画面の後に下記のエラーメッセージが出ていしまいます。
エラーメッセージから権限関連と考えたのですが間違っているところがわからず自分の知識では行き詰っている状況です。
初学者のため稚拙な質問で申し訳ありませんが、何卒宜しくお願い致します。
発生している問題・エラーメッセージ
Error Starting Kernel Invalid response: 500 Internal Server Error Unhandled error Traceback (most recent call last): File "/home/<username>/miniconda3/lib/python3.7/site-packages/tornado/web.py", line 1703, in _execute result = await result File "/home/<username>/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File "/home/<username>/miniconda3/lib/python3.7/site-packages/notebook/services/sessions/handlers.py", line 72, in post type=mtype)) File "/home/<username>/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run value = future.result() File "/home/<username>/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File "/home/<username>/miniconda3/lib/python3.7/site-packages/notebook/services/sessions/sessionmanager.py", line 88, in create_session kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name) File "/home/<username>/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run value = future.result() File "/home/<username>/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File "/home/<username>/miniconda3/lib/python3.7/site-packages/notebook/services/sessions/sessionmanager.py", line 101, in start_kernel_for_session self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name) File "/home/<username>/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run value = future.result() File "/home/<username>/miniconda3/lib/python3.7/site-packages/tornado/gen.py", line 209, in wrapper yielded = next(result) File "/home/<username>/miniconda3/lib/python3.7/site-packages/notebook/services/kernels/kernelmanager.py", line 168, in start_kernel super(MappingKernelManager, self).start_kernel(**kwargs) File "/home/<username>/miniconda3/lib/python3.7/site-packages/jupyter_client/multikernelmanager.py", line 158, in start_kernel km.start_kernel(**kwargs) File "/home/<username>/miniconda3/lib/python3.7/site-packages/jupyter_client/manager.py", line 301, in start_kernel kernel_cmd, kw = self.pre_start_kernel(**kw) File "/home/<username>/miniconda3/lib/python3.7/site-packages/jupyter_client/manager.py", line 248, in pre_start_kernel self.write_connection_file() File "/home/<username>/miniconda3/lib/python3.7/site-packages/jupyter_client/connect.py", line 474, in write_connection_file kernel_name=self.kernel_name File "/home/<username>/miniconda3/lib/python3.7/site-packages/jupyter_client/connect.py", line 138, in write_connection_file with secure_write(fname) as f: File "/home/<username>/miniconda3/lib/python3.7/contextlib.py", line 112, in __enter__ return next(self.gen) File "/home/<username>/miniconda3/lib/python3.7/site-packages/jupyter_core/paths.py", line 447, in secure_write .format(file=fname, permissions=oct(file_mode))) RuntimeError: Permissions assignment failed for secure file: '/mnt/c/linux_home/.local/share/jupyter/runtime/kernel-00dd8d68-45f7-46c2-875b-85ce2af3b7c5.json'. Got '0o677' instead of '0o0600'.
~/.local/share/jupyter/runtime$ ls -l total 8 -rwxrwxrwx 1 <username> <username> 0 Jun 20 20:11 kernel-00dd8d68-45f7-46c2-875b-85ce2af3b7c5.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:45 kernel-149f4fc8-6749-4125-9a64-eb43c8d4905f.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 19:02 kernel-19145457-1605-472e-beeb-3efa52d8f64a.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:06 kernel-378ab5bf-0999-4722-a6ba-6256fa13ecc0.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:29 kernel-3cbcdfb6-790d-4da1-97c8-f74b98488cd9.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:50 kernel-3ce29c0e-51a5-42ac-a689-06d3418d668c.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:35 kernel-3def68e0-2d81-4021-aa9e-daec7100305c.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:22 kernel-42c2af35-3ca8-4752-92fa-ce2e43a8f52d.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:52 kernel-466592b2-ce7c-4c46-85d5-7a394b331d03.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:57 kernel-58e9e48f-18fd-4d84-9c4c-e8308da92906.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 19:25 kernel-5e24b1f4-c18c-4561-983d-1e730f8d49d3.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:54 kernel-5feb837c-77e1-4343-9ffe-9ff1c7d937a4.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 20:11 kernel-60d5ee84-99dc-49d1-97dd-903cfdcde39e.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:06 kernel-63d350c6-7bf6-472f-8b6d-742507b079d5.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:55 kernel-6a1fa7ef-fcf6-4755-9cda-ee68b0023c5c.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:35 kernel-7393e88c-b641-470f-ba1f-bd93a9fa5ae5.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:42 kernel-73c62029-d493-4645-8b7a-480b1e57f22f.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:22 kernel-84423309-bf56-4a64-be78-b79f4bb4dce3.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:45 kernel-9f130772-2ee0-4638-8570-6b93930d1381.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 19:26 kernel-a980f132-6975-4d2d-af45-42f34ca51188.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:57 kernel-af9e5cd7-ccc0-46c6-9434-90cea2dad8dd.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:42 kernel-b8f3c0aa-0c81-41b8-9cf4-7c87d449cdc9.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:00 kernel-c0b9649b-aad1-40be-b912-526e1ec5d5b4.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:47 kernel-c5488eaf-16ba-49c2-ad3e-14370f965884.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:19 kernel-d3b3051d-0d66-4302-bc86-70aebfdc8ec9.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:24 kernel-d8c22609-7de8-4f54-b12f-c2b6ee80bf72.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:54 kernel-e99b4cf7-1af5-48de-b016-a7b10f8f3364.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 17:52 kernel-ea0641a5-0152-400e-9a25-46e3f1d77596.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:29 kernel-f3e0530a-d39f-42e6-aef9-5462eef40c61.json -rwxrwxrwx 1 <username> <username> 0 Jun 20 18:25 kernel-f95615d7-44d9-486c-85c7-4ea88a9d0243.json -rwxrwxrwx 1 <username> <username> 257 Jun 20 20:11 nbserver-29852.json -rwxrwxrwx 1 <username> <username> 670 Jun 20 20:11 nbserver-29852-open.html -rwxrwxrwx 1 <username> <username> 259 Jun 20 20:59 nbserver-32192.json -rwxrwxrwx 1 <username> <username> 670 Jun 20 20:59 nbserver-32192-open.html -rwxrwxrwx 1 <username> <username> 45 Jun 20 14:46 notebook_cookie_secret
試したこと
https://teratail.com/questions/175794
https://github.com/jupyter/notebook/issues/5058
conda-clean
conda update conda
conda update jupyter
$ pip uninstall jupyter_contrib_nbextensions
補足情報（FW/ツールのバージョンなど）
Windows 10 1906
WSL1 Ubuntu 18.04
jupyter core : 4.6.3
jupyter-notebook : 6.0.3
qtconsole : not installed
ipython : 7.15.0
ipykernel : 5.3.0
jupyter client : 6.1.3
jupyter lab : 2.1.4
nbconvert : 5.6.1
ipywidgets : not installed
nbformat : 5.0.7
traitlets : 4.3.3
Python 3.7.7
conda 4.8.3
自己解決
