Operation not permitted, when restoring privileged to unprivileged lxc

[Cigdan]

When I try to restore a privileged lxc container as unprivileged, I get this error:

Error: error extracting archive - encountered unexpected error during extraction: error at entry "": failed to leave directory: failed to apply directory metadata: failed to apply extended attributes: Operation not permitted (os error 1)
  Logical volume "vm-103-disk-1" successfully removed.
TASK ERROR: unable to restore CT 103 - command 'lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- /usr/bin/proxmox-backup-client restore '--crypt-mode=encrypt' '--keyfd=14' ct/103/2025-01-12T22:19:35Z root.pxar /var/lib/lxc/103/rootfs --allow-existing-dirs --repository root@pam@192.168.1.230:backup' failed: exit code 255

This is the lxc config, which has no mount points included as far as I can tell.

arch: amd64
cores: 2
features: nesting=1
hostname: navidrome
memory: 1024
net0: name=eth0,bridge=vmbr0,gw=192.168.1.1,hwaddr=BC:24:11:E8:B2:EF,ip=192.168.1.126/24,type=veth
onboot: 1
ostype: debian
rootfs: local-lvm:vm-103-disk-0,size=8G
swap: 512
tags: proxmox-helper-scripts

What could be the reason for this and is there a way to fix this?

 

[fba]

Hi,

can you try a different storage to restore to, because it might be that the selected storage misses capabilities for storing extended ACL, like described here: https://forum.proxmox.com/threads/b...-from-privileged-containers.87873/post-385162