Unable to install snap-store in an Ubuntu 20.04 LTS LXC

[alpha754293]

I am trying to install snap-store in an Ubuntu 20.04 LXC on my Proxmox server which is running Proxmox 7.4-17.

This is the error message that I get:

user@ubunt20:~/Desktop$ sudo snap install steam
error: cannot perform the following tasks:
- Setup snap "steam" (206) security profiles (cannot setup udev for snap "steam": cannot reload udev rules: exit status 1
udev output:
Failed to send reload request: No such file or directory
)
- Setup snap "steam" (206) security profiles (cannot reload udev rules: exit status 1
udev output:
Failed to send reload request: No such file or directory
)
- Setup snap "steam" (206) security profiles for auto-connections (cannot reload udev rules: exit status 1
udev output:
Failed to send reload request: No such file or directory
)

Here is the <<VMID>>.conf:

arch: amd64
features: mount=fuse,fuse=1,nesting=1
hostname: ubuntu20
memory: 8192
nameserver: 8.8.8.8
net0: *snip*
ostype: ubuntu
rootfs: local-lvm:vm-1030-disk-0,size=100G
swap: 512
lxc.apparmor.raw: mount,
lxc.mount.entry: /dev/fuse dev/fuse none bind,create=file 0 0
lxc.cap.drop: 
lxc.cap.drop: mac_override sys_time sys_module sys_rawio
lxc.apparmor.profile: unconfined
lxc.cgroup.devices.allow: c 195:* rwm
lxc.cgroup.devices.allow: c 506:* rwm
lxc.cgroup.devices.allow: c 226:* rwm
lxc.mount.entry: /dev/nvidia0 dev/nvidia0 none bind,optional,create=file
lxc.mount.entry: /dev/nvidiactl dev/nvidiactl none bind,optional,create=file
lxc.mount.entry: /dev/nvidia-modeset dev/nvidia-modeset none bind,optional,create=file
lxc.mount.entry: /dev/nvidia-uvm dev/nvidia-uvm none bind,optional,create=file
lxc.mount.entry: /dev/nvidia-uvm-tools dev/nvidia-uvm-tools none bind,optional,create=file
lxc.mount.entry: /dev/nvram dev/nvram none bind,optional,create=file
lxc.cgroup.devices.allow: c 116:* rwm
lxc.mount.entry: /dev/snd dev/snd none bind,optional,create=dir

squashfuse is already installed.

For /etc/udev/rules.d/, I copied the rules files from an Ubuntu 20.04 VM that I installed as an Oracle VirtualBox VM because I thought that it would be the easiest to get a copy of these files so that I can copy them into said Ubuntu 20.04 LXC.

Here is the output of sudo systemctl status snapd:

user@ubuntu20:~/Desktop$ sudo systemctl status snapd
● snapd.service - Snap Daemon
     Loaded: loaded (/lib/systemd/system/snapd.service; enabled; vendor preset: enabled)
     Active: active (running) since Sat 2024-11-02 22:01:29 EDT; 25s ago
TriggeredBy: ● snapd.socket
   Main PID: 6297 (snapd)
      Tasks: 39 (limit: 309285)
     Memory: 21.4M
     CGroup: /system.slice/snapd.service
             └─6297 /usr/lib/snapd/snapd

Nov 02 22:01:29 ubuntu20 systemd[1]: Starting Snap Daemon...
Nov 02 22:01:29 ubuntu20 snapd[6297]: overlord.go:271: Acquiring state lock file
Nov 02 22:01:29 ubuntu20 snapd[6297]: overlord.go:276: Acquired state lock file
Nov 02 22:01:29 ubuntu20 snapd[6297]: daemon.go:250: started snapd/2.65.3+20.04 (series 16; classic) ubuntu/20.04 (amd64) linu>
Nov 02 22:01:29 ubuntu20 snapd[6297]: daemon.go:353: adjusting startup timeout by 1m0s (pessimistic estimate of 30s plus 5s pe>
Nov 02 22:01:29 ubuntu20 snapd[6297]: backends.go:58: AppArmor status: apparmor is enabled and all features are available
Nov 02 22:01:29 ubuntu20 systemd[1]: Started Snap Daemon.

Any help to try and get it running would be greatly appreciated.