Can't create or write into the data directory /var/www/owncloud/data

Server
,
1

Steps to reproduce

  1. Carefully followed guide: Detailed Installation Guide
  2. Then run Scripts for the Script-Guided Installation
  3. Try to finalise the installation using installation wizard or command line with occ

Expected behaviour

Expect to finialise setup and then be able to use ownCloud

Actual behaviour

Installation wizard in browser and occ in terminal both fail with:

Can’t create or write into the data directory /var/www/owncloud/data
Can’t create or write into the apps-external directory /var/www/owncloud/apps-external

Server configuration

Operating system:
Ubuntu 24.04

Web server:
Apache 2

Database:
MariaDB/MySql

PHP version:
7.4

ownCloud version: (see ownCloud admin page)
10.15

Updated from an older ownCloud or fresh install:
Fresh install

Where did you install ownCloud from:
Official sources as outlined in installation guide on website.

I have checked folder permissions and I have:

root@linux-build-server:/var/www# stat owncloud
File: owncloud
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 8,2 Inode: 9961721 Links: 12
Access: (0750/drwxr-x—) Uid: ( 33/www-data) Gid: ( 33/www-data)
Access: 2025-01-07 16:59:41.001114541 +0000
Modify: 2025-01-07 16:40:13.321796834 +0000
Change: 2025-01-07 16:56:59.768559947 +0000
Birth: 2025-01-07 16:39:59.136831445 +0000

root@linux-build-server:/var/www/owncloud# stat apps-external
File: apps-external → /home/duncan/owncloud_data/apps-external
Size: 40 Blocks: 0 IO Block: 4096 symbolic link
Device: 8,2 Inode: 9992524 Links: 1
Access: (0777/lrwxrwxrwx) Uid: ( 33/www-data) Gid: ( 33/www-data)
Access: 2025-01-07 16:57:34.864696090 +0000
Modify: 2025-01-07 16:40:13.321796834 +0000
Change: 2025-01-07 16:56:59.757559903 +0000
Birth: 2025-01-07 16:40:13.321796834 +0000

root@linux-build-server:/var/www/owncloud# stat data
File: data → /home/duncan/owncloud_data/data
Size: 31 Blocks: 0 IO Block: 4096 symbolic link
Device: 8,2 Inode: 9992523 Links: 1
Access: (0777/lrwxrwxrwx) Uid: ( 33/www-data) Gid: ( 33/www-data)
Access: 2025-01-07 16:57:34.856696060 +0000
Modify: 2025-01-07 16:40:13.319796838 +0000
Change: 2025-01-07 16:56:59.757559903 +0000
Birth: 2025-01-07 16:40:13.319796838 +0000

root@linux-build-server:/var/www/owncloud# stat /home/duncan/owncloud_data/data
File: /home/duncan/owncloud_data/data
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 8,2 Inode: 8029241 Links: 2
Access: (0777/drwxrwxrwx) Uid: ( 33/www-data) Gid: ( 33/www-data)
Access: 2025-01-07 16:40:13.963795274 +0000
Modify: 2025-01-07 17:21:57.356977682 +0000
Change: 2025-01-07 17:21:57.356977682 +0000
Birth: 2025-01-07 16:40:13.318796841 +0000

root@linux-build-server:/var/www/owncloud# stat /home/duncan/owncloud_data/apps-external/
File: /home/duncan/owncloud_data/apps-external/
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 8,2 Inode: 8029242 Links: 2
Access: (0777/drwxrwxrwx) Uid: ( 33/www-data) Gid: ( 33/www-data)
Access: 2025-01-07 16:40:13.962795277 +0000
Modify: 2025-01-07 16:40:13.320796836 +0000
Change: 2025-01-07 17:20:43.732461127 +0000
Birth: 2025-01-07 16:40:13.320796836 +0000

I think the permissions and ownership look ok. I’ve seen a few othe jrposts with similar issues but the solution in my case is unclear. Please can someone advise.