Proxmox Backup Server LXC mount NFS

[jlai79]

I just installed PBS and am now trying to mount an NFS share on my Synology NAS. I'm still new to Proxmox, but I found out that restricted LXC containers cannot mount NFS unless explicitly enabled.

So I mounted my /volume1/backup to /mnt/nasbackup on the Proxmox host and added this to my lxc config:
lxc.mount.entry = /mnt/nasbackup/ nfs mnt/nasbackup/ none bind 0 0

/mnt/nasbackup is chown backup:backup and chmod 775

On start I get this error:
mount_entry: 2213 No such file or directory - Failed to mount "/mnt/backup/" on "/usr/lib/x86_64-linux-gnu/lxc/rootfs/nfs"
lxc_setup: 3915 Failed to setup mount entries
do_start: 1273 Failed to setup container "107"
sync_wait: 34 An error occurred in another process (expected sequence number 3)
__lxc_start: 2114 Failed to spawn container "107"
startup for container '107' failed

What's wrong here? Am I missing something?

[MorphyDK]

You need to add the mount in the PBS shell - not the host.
Just setup my own setup - works just fine :)

[MorphyDK]

You need to install nfs-common first

[jlai79]

nfs-common is already installed

[MorphyDK]

Have you ticked nfs in options of the container? Im running priviledged container ( as I recall )

[jlai79]

No. The script by @tteck creates an unprivileged container. In privileged containers there's no problem with nfs mounts.

[MorphyDK]

Well then im lost 😊

[havardthom]

Goto tutorial for mounting shares in unprivileged LXCs: https://forum.proxmox.com/threads/tutorial-unprivileged-lxcs-mount-cifs-shares.101795/

[jlai79]

Does this tutorial apply to NFS as well, or only to CIFS?