install-prereqs-ubuntu.sh broken on RPi 4 running Ubuntu 24.04

[bobzwik]

Bug report

Issue details

Running Tools/environment_install/install-prereqs-ubuntu.sh -y hangs on an RPi 4 running Ubuntu 24.04. It gets stuck on Building wheel for wxpython (setup.py) and maxes out all my cores to 100%. I tested this 3 times, and left it hang over 40 minutes once.

To reproduce:

• Flash SD card with Ubuntu 24.04 (64 bit) for RPi 4 using Raspberry Pi imager.
• Boot Pi, set location, language, etc.

sudo apt update && sudo apt upgrade -y
sudo reboot
sudo apt install git
git clone --recurse-submodules https://github.com/ArduPilot/ardupilot.git 
cd ardupilot 
Tools/environment_install/install-prereqs-ubuntu.sh -y

I can also reproduce this without doing sudo apt upgrade -y

I don't know if this is linked, but after sudo apt upgrade -y, if i try to update and upgrade again, I get a message :

The following upgrades have been deferred due to phasing:
     python3-distupgrade shotwell shotwell-common ubuntu-release-upgrader-core ubuntu-release-upgrader-gtk 

Version
master

Platform
[x] All
[ ] AntennaTracker
[ ] Copter
[ ] Plane
[ ] Rover
[ ] Submarine

Airframe type
N/A

Hardware type
N/A

Logs
N/A

[peterbarker]

Sorry, you have to leave it for a lot longer than 40 minutes for that step to complete....

It does complete.

Try again (leave it overnight....) and re-open if it reproduces (and I'll attempt to work things out locally).

[bobzwik]

Any reason why it takes that long? The whole install-prereqs-ubuntu.sh takes 5-8 minutes on the same RPi 4 on Ubuntu 22.04.

[timtuxworth]

Make sure you have enough memory. I usually set my swap size to 2x physical memory. It usually solves this on the Pi.