Slow boot on Raspberry Pi 5 Compute Module (no Wi-Fi) using FullPageOS

[Eugen-170]

Hello everyone,

I’m using FullPageOS 2025-04-01_2024-11-19-fullpageos-bookworm-armhf-lite-0.14.0 on a Raspberry Pi 5 Compute Module (8 GB, without Wi-Fi).
The module runs on a Waveshare Compute Module 5 IO Board with PoE, and the installation is done on an SD card.

The system takes about 1.5 minutes to fully boot — from power-on until Chromium starts.
On regular Raspberry Pi models, FullPageOS seems to boot much faster.

I suspect the issue might be related to the missing Wi-Fi module.
I already tried disabling Wi-Fi loading in /boot/firmware/config.txt, but unfortunately that didn’t make a difference.

The Pi is connected via Ethernet (PoE) for both power and network.

Question:
Does anyone have an idea how to speed up the boot process?
Maybe by disabling services that wait for Wi-Fi or by applying other boot optimizations?

Thanks in advance for any advice!

[guysoft]

Is this first boot or second?

It might be because it takes a while for the pi to connect, it will not start the browser until there is an internet connection working. so you don't get a broken page

[Eugen-170]

The initial setup (first boot after flashing the SD card) does take a bit longer, which is expected.
However, even after setup, every boot consistently takes about 1.5 minutes (measured with a timer).

I already tried disabling “wait for network” during boot, but that didn’t make any difference.
It seems like the system is waiting for something during startup — my guess is that it might be related to the missing Wi-Fi hardware.

I couldn’t find any clear way to completely disable Wi-Fi initialization or related services.

[guysoft]

Not sure then what the issue is