I am experiencing issues with my Collabora Online instance. Opening documents form Nexccloud (same cloudron insance) takes a very long time, and the logs show that the system is failing to set up the document jails using bind-mounts.
Instead of the fast bind-mount method, it seems Collabora is falling back to a slow recursive copy of system files because of missing permissions.
This error appears every time a document is opened.
Cloudron: 9.0.17
Ubuntu 22.04.5 LTS Linux 5.15.0-168-generic
Collabora Online 25.04.9.2.1
here's my log:
1-00106 2026-03-01 12:55:08.502103 +0000 [ websrv_poll ] WRN FileServerRequestHandler: File not found: Invalid URI request (hash): [/browser/a9b866688f/images/lc_themedialog.svg].| wsd/FileServer.cpp:1227
Mar 01 13:55:08 172.18.0.1 - - [01/Mar/2026:12:55:08 +0000] "GET /browser/a9b866688f/images/lc_themedialog.svg HTTP/1.1" 404 153 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36"
Mar 01 13:55:10 GET /api/healthcheck 200 2.207 ms - 2
Mar 01 13:55:10 172.18.0.1 - - [01/Mar/2026:12:55:10 +0000] "GET /api/healthcheck HTTP/1.1" 200 2 "-" "Mozilla (CloudronHealth)"
Mar 01 13:55:10 172.18.0.1 - - [01/Mar/2026:12:55:10 +0000] "GET /cool/https%3A%2F%2FMYNEXTCLOUDURL%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F62042_ocf60zurd5bl%3Faccess_token%3D03uzwn1vNsR7bB0cFtbFecPXKDOzXETw%26access_token_ttl%3D0%26no_auth_header%3D/ws?WOPISrc=https%3A%2F%2MYNEXTCLOUD URL.de%2Findex.php%2Fapps%2Frichdocuments%2Fwopi%2Ffiles%2F62042_ocf60zurd5bl&compat=/ws HTTP/1.1" 101 469057 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36"
Mar 01 13:55:12 sh: 1: /usr/bin/coolmount: Operation not permitted
Mar 01 13:55:12 sh: 1: /usr/bin/coolmount: Operation not permitted
Mar 01 13:55:12 sh: 1: /usr/bin/coolmount: Operation not permitted
Mar 01 13:55:15 2026/03/01 12:55:15 [info] 32#32: *31117 client 172.18.0.1 closed keepalive connection
Mar 01 13:55:20 GET /api/healthcheck 200 1.714 ms - 2
Mar 01 13:55:20 172.18.0.1