netboot.xyz in Docker. Could not boot: Permission denied (https://ipxe.org/

[Josho-SAI]

I've just created a Netboot.xyz server running on Proxmox with pfSense as the DHCP service. I used the syncbricks toturial on YouTube here https://youtu.be/GHs5JJZEsXI

Every time I attempt a PXE boot, I see the netboot menu no problems, however am always hitting a Permission denied (https://ipxe.org/0216eb3c) permission error. (This URL is for Ubuntu)

Screenshot from a VirtualBox using LAN as the boot option. This VM is on the same network as Proxmox CT running docker.

if I SSH to the Proxmox CT, I can execute a the below
wget -dv https://github.com/netbootxyz/ubuntu-squash/releases/download/22.04.3-7e94379b/vmlinuz

vmlinuz file downloads 11.05M in 2.7 seconds
`Saving to: ‘vmlinuz’

vmlinuz 100%[===============================================================================>] 11.05M 4.09MB/s in 2.7s

2024-03-21 01:30:59 (4.09 MB/s) - ‘vmlinuz’ saved [11586408/11586408]
`

There's no issues with the docker container resolving ipxe.org and downloading the vmlinuz files.

My docker compose YAML file is below. I have tried both the github default and the tweaked YAML file from the syncbricks YouTube vid.

`## URL https://netboot.xyz/docs/docker/

---

version: "2.1"
services:
netbootxyz:
#image: ghcr.io/netbootxyz/netbootxyz ## from https://github.com/netbootxyz/docker-netbootxyz/blob/master/docker-compose.yml.example
image: lscr.io/linuxserver/netbootxyz:latest ## from https://syncbricks.com/netboot-xyz-pfsense-docker-full-tutorial/
container_name: netbootxyz
environment:
# - MENU_VERSION=2.0.47 # optional
- NGINX_PORT=80 # optional
- WEB_APP_PORT=3000 # optional
- PUID=1000
- PGID=1000
volumes:
- ~/netbootxyz/config:/config # optional
- ~/netbootxyz/assets:/assets # optional
ports:
- 3000:3000 # optional, destination should match ${WEB_APP_PORT} variable above.
- 69:69/udp
- 8080:80 # optional, destination should match ${NGINX_PORT} variable above.
restart: unless-stopped
`

[Josho-SAI]

I attempted to use wget to download https://ipxe.org/0216eb3c and was able to save the HTML file
wget -dv https://ipxe.org/0216eb3c

typing the https://ipxe.org/0216eb3c URL into a browser, i see this

[Josho-SAI]

I'm now at a loss with Docker.

Reading this URL on manually updating ca-certificates with Docker, the netbootxyz docker image doesn't have the apt-get command
https://askubuntu.com/questions/792354/ubuntu-docker-container-update-ca-certificates-command-not-found

[Josho-SAI]

I finally resolved the issue. The Proxmox container hosting netboot.xyz required more resources.

• Memory was set at 2Gb, changed to 6Gb
• root / drive was set at 8Gb, changed to 16Gb