### ⚠️ This issue respects the following points: ⚠️
- [X] This is a **bug**, no…t a question or a configuration/webserver/proxy issue.
- [X] This issue is **not** already reported on [Github](https://github.com/nextcloud/server/issues?q=is%3Aopen+is%3Aissue+label%3Abug) OR [Nextcloud Community Forum](https://help.nextcloud.com/) _(I've searched it)_.
- [X] Nextcloud Server **is** up to date. See [Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) for supported versions.
- [X] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).
### Bug description
Just found NC 28.0.0 beta available and started the update on the command line. Here's the output of the upgrade process:
> Nextcloud Updater - version: v27.1.0rc3-15-gfa7af53
>
> Current version is 27.1.3.
>
> Update to Nextcloud 28.0.0 beta 1 available. (channel: "beta")
> Following file will be downloaded automatically: https://download.nextcloud.com/server/prereleases/nextcloud-28.0.0beta1.zip
>
> Steps that will be executed:
> [ ] Check for expected files
> [ ] Check for write permissions
> [ ] Create backup
> [ ] Downloading
> [ ] Verify integrity
> [ ] Extracting
> [ ] Enable maintenance mode
> [ ] Replace entry points
> [ ] Delete old files
> [ ] Move new files in place
> [ ] Done
>
> Start update? [y/N] y
>
> Info: Pressing Ctrl-C will finish the currently running step and then stops the updater.
>
> [✔] Check for expected files
> [✔] Check for write permissions
> [✔] Create backup
> [✔] Downloading
> [✔] Verify integrity
> [✔] Extracting
> [✔] Enable maintenance mode
> [✔] Replace entry points
> [✔] Delete old files
> [✔] Move new files in place
> [✔] Done
>
> Update of code successful.
>
> Should the "occ upgrade" command be executed? [Y/n] y
> Nextcloud or one of the apps require upgrade - only a limited number of commands are available
> You may use your browser or the occ upgrade command to do the upgrade
> Setting log level to debug
> Repair step: Repair MySQL collation
> Repair info: All tables already have the correct collation -> nothing to do
> Repair step: Copy data from accounts table when migrating from ownCloud
> Repair step: Drop account terms table when migrating from ownCloud
> Updating database schema
> Exception: Database error when running migration 28000Date20230906104802 for app core
> Index name "ts_session" for table "oc_talk_sessions" collides with the constraint on table "oc_text_steps".
> Update failed
> Maintenance mode is kept active
> Resetting log level
>
> Keep maintenance mode active? [y/N]
> Nextcloud or one of the apps require upgrade - only a limited number of commands are available
> You may use your browser or the occ upgrade command to do the upgrade
> Maintenance mode disabled
>
> Maintenance mode is disabled
### Steps to reproduce
1. have an update date NC 27 installation running
2. be on beta channel
3. start the upgrade once you find the notice
### Expected behavior
Upgrade running smootly without errors
### Installation method
None
### Nextcloud Server version
27
### Operating system
Debian/Ubuntu
### PHP engine version
PHP 8.1
### Web server
Nginx
### Database engine version
MariaDB
### Is this bug present after an update or on a fresh install?
Upgraded to a MAJOR version (ex. 22 to 23)
### Are you using the Nextcloud Server Encryption module?
Encryption is Disabled
### What user-backends are you using?
- [X] Default user-backend _(database)_
- [ ] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other
### Configuration report
```shell
{
"system": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"example.org",
"cloud.example.org",
"192.168.1.*",
"nextcloud.example.org"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "27.1.3.2",
"overwrite.cli.url": "http:\/\/localhost",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"activity_expire_days": 14,
"auth.bruteforce.protection.enabled": true,
"blacklisted_files": [
".htaccess",
"Thumbs.db",
"thumbs.db"
],
"cron_log": true,
"enable_previews": true,
"enabledPreviewProviders": [
"OC\\Preview\\PNG",
"OC\\Preview\\JPEG",
"OC\\Preview\\GIF",
"OC\\Preview\\BMP",
"OC\\Preview\\XBitmap",
"OC\\Preview\\Movie",
"OC\\Preview\\PDF",
"OC\\Preview\\MP3",
"OC\\Preview\\TXT",
"OC\\Preview\\MarkDown"
],
"filesystem_check_changes": 1,
"filelocking.enabled": "true",
"htaccess.RewriteBase": "\/",
"integrity.check.disabled": false,
"knowledgebaseenabled": false,
"logfile": "\/mnt\/STOR\/logs\/nextcloud.log",
"loglevel": 0,
"logtimezone": "Europe\/Berlin",
"log_rotate_size": 104857600,
"maintenance": false,
"memcache.local": "\\OC\\Memcache\\APCu",
"memcache.distributed": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0,
"timeout": 0
},
"memcache.locking": "\\OC\\Memcache\\Redis",
"overwriteprotocol": "https",
"preview_max_x": 1024,
"preview_max_y": 768,
"preview_max_scale_factor": 1,
"quota_include_external_storage": false,
"share_folder": "\/Shares",
"skeletondirectory": "",
"theme": "",
"trashbin_retention_obligation": "auto, 7",
"updater.release.channel": "beta",
"mail_smtpmode": "sendmail",
"mail_sendmailmode": "pipe",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtpauthtype": "LOGIN",
"mail_smtpauth": 1,
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "587",
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"mail_smtpsecure": "tls",
"default_phone_region": "DE",
"app_install_overwrite": [
"dicomviewer",
"files_mindmap",
"carnet",
"onlyoffice",
"richdocuments",
"richdocumentscode",
"documentserver_community",
"files_photospheres",
"telephoneprovider",
"audioplayer",
"audioplayer_editor",
"extract",
"tasks",
"ocsms",
"files_trackdownloads",
"ocdownloader",
"twofactor_u2f",
"checksum",
"event_update_notification",
"mindmap_app",
"contacts",
"deck",
"spreed",
"twofactor_webauthn",
"maps"
],
"has_rebuilt_cache": true
}
}
```
### List of activated Apps
```shell
Enabled:
- activity: 2.19.0
- admin_audit: 1.17.0
- audioplayer: 3.4.0
- bruteforcesettings: 2.7.0
- calendar: 4.6.0-beta.1
- carnet: 0.25.2
- checksum: 1.2.2
- circles: 27.0.1
- cloud_federation_api: 1.10.0
- comments: 1.17.0
- contacts: 5.5.0-beta.3
- contactsinteraction: 1.8.0
- dashboard: 7.7.0
- dav: 1.27.0
- deck: 1.11.0
- documentserver_community: 0.1.13
- event_update_notification: 2.2.0
- extract: 1.3.6
- federatedfilesharing: 1.17.0
- federation: 1.17.0
- files: 1.22.0
- files_external: 1.19.0
- files_mindmap: 0.0.29
- files_pdfviewer: 2.8.0
- files_photospheres: 1.27.0
- files_reminders: 1.0.0
- files_sharing: 1.19.0
- files_trackdownloads: 1.11.0
- files_trashbin: 1.17.0
- files_versions: 1.20.0
- impersonate: 1.14.0
- logreader: 2.12.0
- lookup_server_connector: 1.15.0
- mail: 3.5.0-beta.1
- maps: 1.2.0
- nextcloud_announcements: 1.16.0
- notes: 4.8.1
- notifications: 2.15.0
- oauth2: 1.15.1
- ocdownloader: 1.9.1
- password_policy: 1.17.0
- photos: 2.3.0
- previewgenerator: 5.3.0
- privacy: 1.11.0
- provisioning_api: 1.17.0
- recommendations: 1.6.0
- related_resources: 1.2.0
- richdocuments: 8.2.2
- richdocumentscode: 23.5.503
- serverinfo: 1.17.0
- settings: 1.9.0
- sharebymail: 1.17.0
- sociallogin: 5.5.4
- spreed: 17.1.2
- support: 1.10.0
- survey_client: 1.15.0
- suspicious_login: 5.0.0
- systemtags: 1.17.0
- tasks: 0.15.0
- telephoneprovider: 1.0.3
- text: 3.8.0
- theming: 2.2.0
- twofactor_backupcodes: 1.16.0
- twofactor_totp: 9.0.0
- twofactor_webauthn: 1.2.0
- updatenotification: 1.17.0
- user_status: 1.7.0
- viewer: 2.1.0
- weather_status: 1.7.0
- workflowengine: 2.9.0
Disabled:
- encryption: 2.16.0
- firstrunwizard: 2.17.0 (installed 2.7.0)
- user_ldap: 1.19.0
```
### Nextcloud Signing status
_No response_
### Nextcloud Logs
```shell
none available
```
### Additional info
_No response_