Nexcloud AIO - error after restoring lxc backup and data backu

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The Basics

  • Nextcloud Server version (e.g., 29.x.x):

    • Nextcloud AIO v12.4.0

  • Operating system and version (e.g., Ubuntu 24.04):
    • proxmox > lxc debian 13
  • Web server and version (e.g, Apache 2.4.25):
    • integrate
  • Reverse proxy and version _(e.g. nginx 1.27.2)
    • NGINX PROXY MANGER latest version
  • PHP version (e.g, 8.3):
    • replace me
  • Is this the first time you’ve seen this error? (Yes / No):
    • yes
  • When did this problem seem to first start?
    • volumes and data restore
  • Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
    • AIO
  • Are you using CloudfIare, mod_security, or similar? (Yes / No)
    • no

Summary of the issue you are facing:

nexcloud-aio-nexcloud not starting seems like it want to init a new installation

Steps to replicate it (hint: details matter!):

  1. i have restore lxc with all volumes + data from a duplicati restore since it is in a bind volume path (not docker volume)

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.

026-02-19T22:33:31.900219016Z Please reset AIO properly and try again.
2026-02-19T22:33:31.900222392Z See:
2026-02-19T22:33:31.900224241Z   https://github.com/nextcloud/all-in-one#how-to-properly-reset-the-instance
2026-02-19T22:34:32.344618526Z Connection to nextcloud-aio-database (192.168.112.5) 5432 port [tcp/postgresql] succeeded!
2026-02-19T22:34:34.355525707Z               now              
2026-02-19T22:34:34.355544290Z -------------------------------
2026-02-19T22:34:34.355546122Z  2026-02-19 22:34:34.355267+00
2026-02-19T22:34:34.355547451Z (1 row)
2026-02-19T22:34:34.355548634Z 
2026-02-19T22:34:34.358692135Z + '[' -f /dev-dri-group-was-added ']'
2026-02-19T22:34:34.358871120Z ++ find /dev -maxdepth 1 -mindepth 1 -name dri
2026-02-19T22:34:34.359219781Z + '[' -n '' ']'
2026-02-19T22:34:34.359241233Z + set +x
2026-02-19T22:34:34.368685262Z Connection to nextcloud-aio-redis (192.168.112.4) 6379 port [tcp/redis] succeeded!
2026-02-19T22:34:34.522235811Z The initial Nextcloud installation failed.
2026-02-19T22:34:34.522252815Z For more information about what went wrong, check the logs above.
2026-02-19T22:34:34.522254429Z Please reset AIO properly and try again.
2026-02-19T22:34:34.522255719Z See:
2026-02-19T22:34:34.522256625Z   https://github.com/nextcloud/all-in-one#how-to-properly-reset-the-instance

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.

PASTE

Web server / Reverse Proxy

The output of your Apache/nginx/system log in /var/log/____:

no errors in browser

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!):

can't start nextcloud-aio-nextcloud so i can't retrieve the app list but basically these are the containers:
  1. Apache (Starting) (docs)
  2. Database (Running)
  3. Nextcloud (Starting)
  4. Notify Push (Starting)
  5. Redis (Running)
  6. ClamAV (Running)
  7. OnlyOffice (Running)

Apps

The output of occ app:list (if possible).

Tips for increasing the likelihood of a response

  • Use the preformatted text formatting 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.
2

soved by deleting the install.failed file.