Unfortunately upgrade in OpenStack is not that simple. You should make sure you run upgrade commands (the commands may differ in projects. For example nova requires `nova-manage api_db sync` and `nova-manage db sync`) to upgrade database schema, after you update packages. Also be aware that only limited patterns of skip level upgrade is supported at this moment(well, technically some scenarios may work but that's not fully tested or actually considered during development). See https://releases.openstack.org/#releases-with-skip-level-upgrade-release-pro... to find some more details. On 11/5/25 11:45 PM, Ahmad Milad Pour wrote:

I did rebuild everything and it worked.

During the upgrade, I think I told the OS to keep the current config files, like /etc/nova/nova.conf and other files, and that may be the reason.

I did clean install.

On Wed, Nov 5, 2025 at 2:56 PM Ahmad Milad Pour <miladpourahmad94@gmail.com <mailto:miladpourahmad94@gmail.com>> wrote:

It seems none of the APIs, neither from CLI nor in the horizon can be called.

I have error for all of them.

On Wed, Nov 5, 2025 at 2:44 PM Ahmad Milad Pour <miladpourahmad94@gmail.com <mailto:miladpourahmad94@gmail.com>> wrote:

Hello there,

I did upgrade the packages and repo, and something were upgraded:

BEFORE: root@gregion83:~# apt-cache policy nova-api | head -n 10 nova-api:   Installed: 3:29.2.0-0ubuntu1.1 AFTER: root@gregion83:~# apt-cache policy nova-api | head nova-api:   Installed: 3:31.0.0-0ubuntu1.2~cloud0

I also did add "DEBUG=True" under "default" section of /etc/nova/nova.conf in my region and tried to create server, but I cannot find any important logs or details to see what's wrong:

==> /var/log/nova/nova-api.log <== 2025-11-05 14:42:44.524 2960 INFO nova.osapi_compute.wsgi.server [-] 185.137.25.83 "GET /v2.1 HTTP/1.1" status: 200 len: 790 time: 0.0164449 2025-11-05 14:42:45.615 2960 ERROR nova.api.openstack.wsgi [None req-892920aa-c4be-4aea-abab-aa8e9fe8c7e0 64c74c80ec9a4a31ae27b82af846b36a 906db1c682bc4e3db 822c2e6dbc9cb6a - - default default] Unexpected exception in API method: neutronclient.common.exceptions.InternalServerError: Request Failed: internal serve r error while processing your request. Neutron server returns request_ids: ['req-80f3ccda-11ee-4417-a27c-2437540e6ee0']

2025-11-05 14:42:45.615 2960 ERROR nova.api.openstack.wsgi     exception_handler_v20(status_code, error_body) 2025-11-05 14:42:45.615 2960 ERROR nova.api.openstack.wsgi   File "/usr/lib/python3/dist-packages/neutronclient/v2_0/client.py", line 90, in exception_handler_v20 2025-11-05 14:42:45.615 2960 ERROR nova.api.openstack.wsgi     raise client_exc(message=error_message, 2025-11-05 14:42:45.615 2960 ERROR nova.api.openstack.wsgi neutronclient.common.exceptions.InternalServerError: Request Failed: internal server error while processing your request. 2025-11-05 14:42:45.615 2960 ERROR nova.api.openstack.wsgi Neutron server returns request_ids: ['req-80f3ccda-11ee-4417-a27c-2437540e6ee0'] 2025-11-05 14:42:45.615 2960 ERROR nova.api.openstack.wsgi 2025-11-05 14:42:45.628 2960 INFO nova.api.openstack.wsgi [None req-892920aa-c4be-4aea-abab-aa8e9fe8c7e0 64c74c80ec9a4a31ae27b82af846b36a 906db1c682bc4e3db822c2e6dbc9cb6a - - default default] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ <http://bugs.launchpad.net/nova/> and attach the Nova API log if possible. <class 'neutronclient.common.exceptions.InternalServerError'> 2025-11-05 14:42:45.632 2960 INFO nova.osapi_compute.wsgi.server [None req-892920aa-c4be-4aea-abab-aa8e9fe8c7e0 64c74c80ec9a4a31ae27b82af846b36a 906db1c682bc4e3db822c2e6dbc9cb6a - - default default] 185.137.25.83 "GET /v2.1/servers/c18f669d-1338-42dd-947f-c40217238450 HTTP/1.1" status: 500 len: 660 time: 1.1018338

My last openstack version was 6.6.0, and I did upgrade after another email I sent "How to install Flamingo openstack in Ubuntu 24".

Before upgrade, everything was working fine, but now I have issue.

Would you please help me for this?

Regards, Ahmad