Seafile CE 11.0.2, Seahub failed to start, Ubuntu 22.04

Hi,

I’m trying to test Seafile CE 11.0.2 on an Ubuntu 22.04 server in an LXC container, with MySQL. Using this manual: https://manual.seafile.com/deploy/using_mysql/

My env:

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.3 LTS
Release:        22.04
Codename:       jammy

mysql  Ver 8.0.35-0ubuntu0.22.04.1 for Linux on x86_64 ((Ubuntu))

The manual says: Seafile uses the mysql_native_password plugin for authentication. It is therefore required to change to authentication plugin to mysql_native_password for the root user prior to the installation of Seafile..

After wizard ./setup-seafile-mysql.sh user seafile created with caching_sha2_password. Why?

After running /seafile.sh start in log/seafile.log:

2023-12-12 18:36:06 ../common/seaf-utils.c(358): Use database Mysql
2023-12-12 18:36:06 http-server.c(199): fileserver: worker_threads = 10
2023-12-12 18:36:06 http-server.c(214): fileserver: fixed_block_size = 8388608
2023-12-12 18:36:06 http-server.c(229): fileserver: web_token_expire_time = 3600
2023-12-12 18:36:06 http-server.c(244): fileserver: max_indexing_threads = 1
2023-12-12 18:36:06 http-server.c(259): fileserver: max_index_processing_threads= 3
2023-12-12 18:36:06 http-server.c(281): fileserver: cluster_shared_temp_file_mode = 600
2023-12-12 18:36:06 ../common/seaf-db.c(863): Failed to connect to MySQL: Plugin caching_sha2_password could not be loaded: /usr/lib/mariadb/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory
2023-12-12 18:36:06 ../common/seaf-db.c(863): Failed to connect to MySQL: Plugin caching_sha2_password could not be loaded: /usr/lib/mariadb/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory
2023-12-12 18:36:06 repo-mgr.c(3806): Failed to add branch.
2023-12-12 18:36:06 seafile-session.c(453): Failed to create system default repo.
2023-12-12 18:36:13 start to serve on pipe client

fixed like this:

mysql> ALTER USER ‘seafile’@‘127.0.0.1’ IDENTIFIED WITH mysql_native_password BY ‘…password…’;

After running /seafile.sh start in log/file_updates_sender.log:

Traceback (most recent call last):
  File "/opt/seafile/seafile-server-11.0.2/seahub/manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/opt/seafile/seafile-server-11.0.2/seahub/thirdpart/django/core/management/__init__.py", line 442, in execute_from_command_line
    utility.execute()
  File "/opt/seafile/seafile-server-11.0.2/seahub/thirdpart/django/core/management/__init__.py", line 416, in execute
    django.setup()
  File "/opt/seafile/seafile-server-11.0.2/seahub/thirdpart/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/opt/seafile/seafile-server-11.0.2/seahub/thirdpart/django/apps/registry.py", line 116, in populate
    app_config.import_models()
  File "/opt/seafile/seafile-server-11.0.2/seahub/thirdpart/django/apps/config.py", line 269, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/usr/local/lib/python3.10/dist-packages/captcha/models.py", line 4, in <module>
    from django.utils.encoding import smart_text
ImportError: cannot import name 'smart_text' from 'django.utils.encoding' (/opt/seafile/seafile-server-11.0.2/seahub/thirdpart/django/utils/encoding.py)

After running ./seahub.sh start and entering the administrator email address and password, an error occurred during startup.

----------------------------------------
Successfully created seafile admin
----------------------------------------
Error:Seahub failed to start.
Please try to run "./seahub.sh start" again