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Sorry to hear you’re facing problems. 
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Getting help
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Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
Nextcloud Hub 9 (30.0.6)
- Operating system and version (e.g., Ubuntu 24.04):
RPiOS 11 Bullseye
- Web server and version (e.g, Apache 2.4.25):
2.4.62
- Reverse proxy and version _(e.g. nginx 1.27.2)
N.A.
- PHP version (e.g, 8.3):
8.3.16
- Is this the first time you’ve seen this error? (Yes / No):
NO
- When did this problem seem to first start?
some month ago
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
Bare Metal/Archive
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
I think NO
Summary of the issue you are facing:
Hi, I have a nextcloud server on a Raspberry Pi4B, while the “data” folder is located externally on a Synology NAS connected to Lan. For a few months I have noticed some errors in the registration log (the one found in the administrator settings) with reference to files in the “data” folder. By delving into the issue and looking for solutions on the web and also with the help of copilot, I understood that the problem was in the permissions of the files and folders on the NAS that do not have the owner www-data, but the Synology user with which I log in. The problem is that from the Raspberry it does not allow me to change the owner as well as the permissions both by connecting it with “nfs” and with “cifs”. Does anyone know if there is some other method that I can try, or is there some configuration of the NAS that cannot be modified? I had found here in the community someone who with a similar configuration had removed the mapping in nfs and had managed to modify the owner and permissions, but then the server would not start anymore. It’s strange because in normal use the files that I upload, download or delete from the cloud, are correctly removed even without ownership of www-data. Is it a problem with how the NAS manages shared folders (maybe with another NAS of another brand it can work), or can I make some software changes that allow me to keep my current hardware configuration?
I also have problems with some cron that are not carried out.
Steps to replicate it (hint: details matter!):
- update server
- update cron
Log entries
Nextcloud
Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.
[index] Errore: The requested uri(/home/adblock/NAS/NextCloud/.ncdata) cannot be processed by the script '/nextcloud/index.php')
GET /home/adblock/NAS/NextCloud/.ncdata
dal **ip_address** da -- alle 8 gen 2025, 13:02:49
[no app in context] Errore: Could not resolve OCA\Talk\Share\RoomShareProvider! Class "OCA\Talk\Share\RoomShareProvider" does not exist
PROPFIND /remote.php/dav/files/m9quattro/
dal **ip_address** da m9quattro alle 21 gen 2025, 22:21:33
{"reqId":"vAxz5tQnC0IqaQZw62kE","level":3,"time":"2025-02-14T22:26:08+00:00","remoteAddr":"","user":"--","app":"PHP","method":"","url":"--","message":"file_put_contents(/home/adblock/NAS/NextCloud/.ncdata): Failed to open stream: Permission denied at /var/www/nextcloud/lib/private/Updater.php#213","userAgent":"--","version":"30.0.5.1","data":{"app":"PHP"},"id":"67b1c12489f98"}
Web Browser
If the problem is related to the Web interface, open your browser inspector Console and Network tabs while refreshing (reloading) and reproducing the problem. Provide any relevant output/errors here that appear.
N.A.
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
[Sun Feb 16 00:00:01.159331 2025] [mpm_prefork:notice] [pid 80337:tid 80337] AH00163: Apache/2.4.62 (Debian) OpenSSL/1.1.1w configured -- resuming normal operations
[Sun Feb 16 00:00:01.159447 2025] [core:notice] [pid 80337:tid 80337] AH00094: Command line: '/usr/sbin/apache2'
[Sun Feb 16 00:50:01.285422 2025] [mpm_prefork:notice] [pid 80337:tid 80337] AH00170: caught SIGWINCH, shutting down gracefully
[Sun Feb 16 06:01:18.992992 2025] [mpm_prefork:notice] [pid 2306:tid 2306] AH00163: Apache/2.4.62 (Debian) OpenSSL/1.1.1w configured -- resuming normal operations
[Sun Feb 16 06:01:18.994831 2025] [core:notice] [pid 2306:tid 2306] AH00094: Command line: '/usr/sbin/apache2'
[Sun Feb 16 07:45:01.453647 2025] [mpm_prefork:notice] [pid 2306:tid 2306] AH00170: caught SIGWINCH, shutting down gracefully
[Sun Feb 16 07:45:02.107395 2025] [mpm_prefork:notice] [pid 78335:tid 78335] AH00163: Apache/2.4.62 (Debian) OpenSSL/1.1.1w configured -- resuming normal operations
[Sun Feb 16 07:45:02.107690 2025] [core:notice] [pid 78335:tid 78335] AH00094: Command line: '/usr/sbin/apache2'
Configuration
Nextcloud
The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):
{
"system": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"***REMOVED SENSITIVE VALUE***"
],
"default_phone_region": "IT",
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"backupdirectory": "\/home\/adblock\/NextcloudBackup",
"tempdirectory": "\/var\/www\/nextcloud\/data\/tmp",
"trashbin_retention_obligation": "30, 30",
"dbtype": "mysql",
"version": "30.0.6.2",
"overwrite.cli.url": "http:\/\/192.168.178.42\/nextcloud",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"allow_local_remote_servers": true,
"filelocking.enabled": true,
"memcache.local": "\\OC\\Memcache\\APCu",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 6379
},
"mail_smtpmode": "smtp",
"mail_smtpsecure": "tls",
"mail_sendmailmode": "smtp",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtpauth": 1,
"mail_smtpauthtype": "LOGIN",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "587",
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"maintenance": false,
"loglevel": 3,
"theme": "",
"updater.release.channel": "stable",
"maintenance_window_start": 1,
"app_install_overwrite": [
"ransomware_protection"
]
}
}
Screenhoots
During update:
Other 3 Screenshoots if I change permissions after removing mapping in nfs:
Apps
The output of occ app:list (if possible).
Enabled:
- activity: 3.0.0
- admin_audit: 1.20.0
- bruteforcesettings: 3.0.0
- circles: 30.0.0
- cloud_federation_api: 1.13.0
- contacts: 6.1.3
- contactsinteraction: 1.11.0
- dashboard: 7.10.0
- dav: 1.31.1
- encryption: 2.18.0
- federatedfilesharing: 1.20.0
- files: 2.2.0
- files_downloadlimit: 3.0.0
- files_pdfviewer: 3.0.0
- files_sharing: 1.22.0
- files_trashbin: 1.20.1
- files_versions: 1.23.0
- firstrunwizard: 3.0.0
- geoblocker: 0.5.15
- logreader: 3.0.0
- lookup_server_connector: 1.18.0
- nextcloud_announcements: 2.0.0
- notifications: 3.0.0
- oauth2: 1.18.1
- password_policy: 2.0.0
- photos: 3.0.2
- privacy: 2.0.0
- provisioning_api: 1.20.0
- recommendations: 3.0.0
- related_resources: 1.5.0
- serverinfo: 2.0.0
- settings: 1.13.0
- sharebymail: 1.20.0
- spreed: 20.1.4
- support: 2.0.0
- survey_client: 2.0.0
- suspicious_login: 8.0.0
- text: 4.1.0
- theming: 2.6.0
- twofactor_backupcodes: 1.19.0
- twofactor_nextcloud_notification: 4.0.0
- twofactor_totp: 12.0.0-dev
- updatenotification: 1.20.0
- viewer: 3.0.0
- welcome: 1.2.1
- workflowengine: 2.12.0
Disabled:
- app_api: 4.0.6 (installed 4.0.0)
- comments: 1.20.1 (installed 1.14.0)
- federation: 1.20.0 (installed 1.14.0)
- files_external: 1.22.0
- files_reminders: 1.3.0 (installed 1.3.0)
- systemtags: 1.20.0 (installed 1.14.0)
- user_ldap: 1.21.0
- user_status: 1.10.0 (installed 1.3.1)
- weather_status: 1.10.0 (installed 1.3.0)
- webhook_listeners: 1.1.0-dev (installed 1.1.0-dev)
Tips for increasing the likelihood of a response
- Use the
preformatted textformatting option in the editor for all log entries and configuration output. - If screenshots are useful, feel free to include them.
- If possible, also include key error output in text form so it can be searched for.
- Try to edit log output only minimally (if at all) so that it can be ran through analyzers / formatters by those trying to help you.