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Proxmox: Permission-Problem with a folder in a Bind Mount Point (feddit.de)

submitted 8 months ago* (last edited 8 months ago) by [email protected] to c/[email protected]

4 comments fedilink hide all child comments

Love Proxmox but still have to learn a lot... I use a Bind Mount Point for my dockge-LXC on proxmox.

I used the Mount Point in my docker compose:

version: "2"

services: urbackup:

image: uroni/urbackup-server:latest

container_name: urbackup

restart: unless-stopped

environment:

  - PUID=1000 # Enter the UID of the user who should own the files here

  - PGID=1000 # Enter the GID of the user who should own the files here

  - TZ=Europe/Berlin # Enter your timezone

volumes:

  - /media/urbackups/data:/var/urbackup

  - /media/urbackups/storage:/backups

  # Uncomment the next line if you want to bind-mount the www-folder

  #- /path/to/wwwfolder:/usr/share/urbackup

network_mode: host

# Activate the following two lines for BTRFS support

cap_add:

  - SYS_ADMIN

networks: {}

Now i geht this permission-error:

urbackup | usermod: no changes

urbackup | chown: changing ownership of '/backups': Operation not permitted

I guess it has to do with the PUID, but i do not know the PUID.

I read that it has to be the user "urbackup" but also in the docker?

The mounted folders are both 777.

Can you help me?

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[–] [email protected] 1 points 8 months ago

There's a weird thing with bind mounts and permissions.

In my case, for my Ubuntu VM to have correct perms for 0:0 (root), the PID and GID in ProxMox's fstab need to be like 11000:10000 or something.

It's apparently working as intended that way, but it's weird.