So, thanks to Peter Robinson for providing this FC43 image:

https://discussion.fedoraproject.org/t/initial-minimal-fedora-image-for-raspberry-pi-5/163809

I installed it on my 2022 RPI5 and dropped in a copy of the missing /etc/sysconfig/kernel file as per Simon de Vlieger's comment lower down on the same page:

<code>

# UPDATEDEFAULT specifies if kernel-install should make

# new kernels the default

UPDATEDEFAULT=yes

# DEFAULTKERNEL specifies the default kernel package type

DEFAULTKERNEL=kernel-core
</code>

I updated the FC43 with a dnf update to the latest Fedora 43 - aarch64 and Copr repo for a64-kernel (owned by pbrobinson).

The RPI5 now boot with an updated kernel by default:

<code>

Linux nas5 6.18.3-200.fc43.aarch64 #1 SMP PREEMPT_DYNAMIC Fri Jan  2 20:14:24 UTC 2026 aarch64 GNU/Linux
</code>
which is great.

I was able to turn my 5V fan on using:

gpioset -z -c gpiochip4 17=1

So, things are looking pretty positive for building a headless NAS with a couple of RAIDed SATA disks. I have a few questions, though.

1. Doing init 0 or init 6 does nothing except cause the message 'Excess arguments.' to appear in the debug/UART console. systemctl reboot works fine, but should I be worried about that error message?

2. The command gpioinfo shows that all the 400 pin header signals have moved to:

gpiochip4 - 54 lines:
        line   0:       unnamed                 input
        line   1:       unnamed                 input
        line   2:       unnamed                 input
        line   3:       unnamed                 input
        line   4:       unnamed                 input
        line   5:       unnamed                 input
        line   6:       unnamed                 input
        line   7:       unnamed                 input
        line   8:       unnamed                 input
        line   9:       unnamed                 input
        line  10:       unnamed                 input
        line  11:       unnamed                 input
        line  12:       unnamed                 input
        line  13:       unnamed                 input
        line  14:       unnamed                 input
        line  15:       unnamed                 input
        line  16:       unnamed                 input
        line  17:       unnamed                 output consumer="gpioset"

etc.

The naming of GPIOs seems to be broken. I'm nto sure if this matters at all. Obviously, my previous commands like this no longer work:

gpioset -z -c gpiochip4 GPIO17=1

And gpiochip0 has changed to gpiochip4, of course. But the functionality seems ok.

Is the user interface to libgpiod stable, or is it likely to change in the near future?

3. Is booting from an NVMe on the PCIe interface likely to work in the near future? This would be a great improvement on having to use uSD cards.

Anyway, many thanks to those who have worked so hard to get FC43 aarch64 on RPI5 this far.

:D