Moving from a VM to a new system

[CommanderDer]

Hello,
I would like to migrate my Inventree VM, which runs on Proxmox, to a new CT instance of Inventree. Now I don't know whether to use the backup function or migration. I'm also having the following problem creating the backup:

`inventree@inventree:/opt/inventree/data/backup$ invoke backup
Backing up InvenTree database...
Traceback (most recent call last):
File "/opt/inventree/src/backend/InvenTree/manage.py", line 13, in main
from django.core.management import execute_from_command_line
ModuleNotFoundError: No module named 'django'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/opt/inventree/src/backend/InvenTree/manage.py", line 24, in
main()
File "/opt/inventree/src/backend/InvenTree/manage.py", line 15, in main
raise ImportError(
ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment?
ERROR: InvenTree command failed: 'python3 manage.py dbbackup --noinput --compress -v 2'

• Refer to the error messages in the log above for more information
  `

I also tried migrating and got the following message:

`inventree@inventree:/opt/inventree/data/backup$ invoke export-records -f data.json
Exporting database records to file '/opt/inventree/data.json'
Traceback (most recent call last):
File "/opt/inventree/src/backend/InvenTree/manage.py", line 13, in main
from django.core.management import execute_from_command_line
ModuleNotFoundError: No module named 'django'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/opt/inventree/src/backend/InvenTree/manage.py", line 24, in
main()
File "/opt/inventree/src/backend/InvenTree/manage.py", line 15, in main
raise ImportError(
ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment?
ERROR: InvenTree command failed: 'python3 manage.py dumpdata --natural-foreign --indent 2 --output '/opt/inventree/data.json.tmp' --exclude contenttypes --exclude auth.permission --exclude error_report.error --exclude admin.logentry --exclude django_q.schedule --exclude django_q.task --exclude django_q.ormq --exclude exchange.rate --exclude exchange.exchangebackend --exclude common.notificationentry --exclude common.notificationmessage --exclude user_sessions.session --exclude importer.dataimportsession --exclude importer.dataimportcolumnmap --exclude importer.dataimportrow --exclude report.labeloutput --exclude report.reportoutput --exclude users.apitoken --exclude socialaccount.socialapp --exclude socialaccount.socialtoken'

• Refer to the error messages in the log above for more information
  `

I don't know what else I could try. I would be very grateful if someone could help me.

[matmair]

You are using the wrong commands to call the cli. From the paths in the error mesages it seems that you are using the package installer. that requires the following invoke base command inventree run cli so you would call inventree run cli backup for a backup

[CommanderDer]

inventree@inventree:/$ inventree run cli backup

Backing up InvenTree database...
Python version 3.10.12 - /opt/inventree/env/bin/python3
/opt/inventree/env/lib/python3.10/site-packages/allauth/exceptions.py:9: UserWarning: allauth.exceptions is deprecated, use allauth.core.exceptions
warnings.warn("allauth.exceptions is deprecated, use allauth.core.exceptions")
2025-05-19 06:53:48,965 INFO Backing Up Database: /opt/inventree/data/database.sqlite3
2025-05-19 06:53:49,104 DEBUG Backup size: 188.6 KiB
2025-05-19 06:53:49,104 INFO Writing file to default-inventree-2025-05-19-065348.dump.gz
Backing up InvenTree media files...
Python version 3.10.12 - /opt/inventree/env/bin/python3
/opt/inventree/env/lib/python3.10/site-packages/allauth/exceptions.py:9: UserWarning: allauth.exceptions is deprecated, use allauth.core.exceptions
warnings.warn("allauth.exceptions is deprecated, use allauth.core.exceptions")
2025-05-19 06:54:09,965 DEBUG Backup size: 380.7 MiB
2025-05-19 06:54:09,965 INFO Writing file to inventree-2025-05-19-065351.tar.gz
Backup completed successfully

[matmair]

Backup has run through successful, i do not see the problem?

[matmair]

As you seem to not be able to answer questions or provide context i am closing this

[CommanderDer]

sudo inventree run cli restore

Restoring InvenTree database
Python version 3.11.2 - /opt/inventree/env/bin/python3
/opt/inventree/env/lib/python3.11/site-packages/allauth/exceptions.py:9: UserWarning: allauth.exceptions is deprecated, use allauth.core.exceptions
warnings.warn("allauth.exceptions is deprecated, use allauth.core.exceptions")
2025-05-19 08:14:54,284 INFO Finding latest backup
2025-05-19 08:14:54,296 INFO Restoring backup for database 'default' and server 'None'
2025-05-19 08:14:54,297 INFO Restoring: default-inventree-2025-05-19-080727.dump.gz
2025-05-19 08:14:54,306 INFO Restore tempfile created: 3.0 MiB
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: account_emailaddress.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index auth_group_permissions_group_id_permission_id_0cd325b0_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index auth_user_groups_user_id_group_id_94350c0c_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index auth_user_user_permissions_user_id_permission_id_14a6b632_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index account_emailaddress_user_id_email_987c8728_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index unique_verified_email already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index unique_primary_email already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index django_content_type_app_label_model_76bd3d3b_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index auth_permission_content_type_id_codename_01ab375a_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_partstar_part_id_user_id_3cffef67_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_partparameter_part_id_template_id_74280ad3_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_bomitemsubstitute_part_id_bom_item_id_46b97ea2_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_partcategorystar_category_id_user_id_ea052d2d_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index company_manufacturerpartparameter_manufacturer_part_id_name_67acf00e_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_partsellpricebreak_part_id_quantity_bd1a9901_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_partinternalpricebreak_part_id_quantity_2f23db66_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index order_salesordershipment_order_id_reference_0b2a76c1_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_supplierpricebreak_part_id_quantity_502fe8d1_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index common_notificationentry_key_uid_93240f63_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index company_manufacturerpart_part_id_manufacturer_id_MPN_7c735053_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_supplierpart_part_id_supplier_id_SKU_5a63ff75_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index build_buildline_build_id_bom_item_id_39298754_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index build_builditem_build_line_id_stock_item_id_install_into_id_239bb093_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index plugin_notificationusersetting_method_user_id_key_aada38de_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index plugin_pluginsetting_plugin_id_key_e49485b1_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index common_inventreecustomuserstatemodel_model_id_reference_status_key_logical_key_a748b1d9_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index common_selectionlistentry_list_id_value_0d92539f_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index exchange_rate_currency_backend_id_c6037b21_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index flags_flagstate_name_condition_value_4e81ec48_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index machine_machinesetting_machine_config_id_config_type_key_12c71a98_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index order_returnorderlineitem_order_id_item_id_d98e7e92_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index part_partrelated_part_1_id_part_2_id_0f725b72_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index report_labeltemplate_name_model_type_13d8a2d7_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index report_reporttemplate_name_model_type_b7ae46bb_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index socialaccount_socialtoken_app_id_account_id_fca4e0ac_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index socialaccount_socialaccount_provider_uid_fc810c6e_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index users_ruleset_name_group_id_129b730d_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index taggit_taggeditem_content_type_id_object_id_tag_id_4bb97a8e_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: index socialaccount_socialapp_sites_socialapp_id_site_id_71a9a768_uniq already exists
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: auth_permission.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: auth_user.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: authtoken_token.user_id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: common_attachment.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: common_colortheme.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: common_inventreesetting.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: common_inventreesetting.key
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: common_inventreeusersetting.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: common_newsfeedentry.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: django_admin_log.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: django_content_type.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: django_migrations.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: django_q_schedule.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: django_q_task.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: django_site.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: exchange_exchangebackend.name
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: exchange_rate.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: label_buildlinelabel.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: label_partlabel.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: label_stockitemlabel.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: label_stocklocationlabel.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: part_partcategory.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: plugin_notificationusersetting.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: plugin_pluginconfig.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: plugin_pluginsetting.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: report_labeltemplate.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: report_reporttemplate.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: stock_stocklocation.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: user_sessions_session.session_key
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: users_apitoken.id
warnings.warn(f"Error in db restore: {err}")
/opt/inventree/env/lib/python3.11/site-packages/dbbackup/db/sqlite.py:89: UserWarning: Error in db restore: UNIQUE constraint failed: users_owner.id
warnings.warn(f"Error in db restore: {err}")
Restoring InvenTree media files
Python version 3.11.2 - /opt/inventree/env/bin/python3
/opt/inventree/env/lib/python3.11/site-packages/allauth/exceptions.py:9: UserWarning: allauth.exceptions is deprecated, use allauth.core.exceptions
warnings.warn("allauth.exceptions is deprecated, use allauth.core.exceptions")
2025-05-19 08:14:57,778 INFO Restoring backup for media files
2025-05-19 08:14:57,778 INFO Finding latest backup
2025-05-19 08:14:57,780 INFO Restoring: inventree-2025-05-19-080730.tar.gz
2025-05-19 08:14:57,781 DEBUG Backup size: 380.7 MiB