Hello! I have a follow-up question about installing Armbian on a Raspberry Pi 5, and hopefully this is a good place for it. Perhaps this belongs here instead:
I just installed the Armbian/Gnome version for Raspberry Pi "4b", as mentioned above, for my Raspberry Pi 5. The OS booted fine and is running. However, I'm trying to install some additional software (specifically this: https://github.com/sunfounder/pipower5/tree/main) and I'm getting errors related to installing the right version of `linux-headers`, the output of `uname`, and possibly the `bcm2711` vs. `bcm2712` CPU.
The original error was:
```
Error: E: Unable to locate package linux-headers-6.18.9-current-bcm2711
E: Couldn't find any package by glob 'linux-headers-6.18.9-current-bcm2711'
E: Couldn't find any package by regex 'linux-headers-6.18.9-current-bcm2711'
```
When I searched for the available packages, I found the following "closest" options:
```
linux-headers-current-bcm2711/noble 26.2.1 arm64 [upgradable from: 26.2.1]
Armbian Linux current headers 6.18.10-current-bcm2711
linux-headers-current-bcm2712/noble 24.11.1 arm64
Armbian Linux current headers 6.6.63-current-bcm2712
```
At this point, I realized that the installation scripts were pulling the kernel version from the output of `uname`:
```
denbro@rpi5b:~$ uname -r
6.18.9-current-bcm2711
denbro@rpi5b:~$ uname -a
Linux rpi5b 6.18.9-current-bcm2711 #1 SMP PREEMPT Mon Feb 9 10:54:02 UTC 2026 aarch64 aarch64 aarch64 GNU/Linux
```
My two main questions are:
1. Why is the proper linux header not available? My understanding is that, in principle, `linux-headers-$(uname -r)` should always be available.
2. Should I be concerned that my linux kernel thinks it is using the bcm2711 CPU? That's the Pi 4 CPU, but my raspberry pi 5 has a bcm2712. Should I install the version of armbian for the Pi 500?
Two additional notes - 1. The Sunfounder software I mentioned above installed without issue on the same device running Raspberry Pi OS Trixie. 2. I originally tried to flash an SD card with Armbian using Raspberry Pi Imager, and it wouldn't boot; the device turned on, and printed a bunch of startup output, and then shut off. After confirming that the SD card worked, I switched to using Armbian Imager to flash the SD card and that led to my current state.
```
denbro@rpi5b:~$ neofetch
##### denbro@rpi5b
####### ------------
##O#O## OS: Armbian 26.2.1 noble aarch64
####### Host: Raspberry Pi 5 Model B Rev 1.1
########### Kernel: 6.18.9-current-bcm2711
############# Uptime: 1 hour, 25 mins
############### Packages: 1200 (dpkg)
################ Shell: bash 5.2.21
################# Resolution: 1280x800
##################### Terminal: /dev/pts/1
##################### CPU: (4) @ 2.400GHz
################# Memory: 691MiB / 3983MiB
```
Let me know if there's any other information I can provide, and thanks in advance for any guidance!
