I’m trying to set up a hotspot on Ubuntu Core 22.04.
While this command
nmcli d wifi hotspot ifname wlp5s0 ssid "no-hotspot" password "no-party"
is enough for setting up a working hotspot on a device with an Intel Dual Band Wireless 9462NGW on board, when I try to do the same on a different device which has an Intel WiFi 6 card on board, I cannot get the hotspot working.
Looking on the web I bumped into this: https://askubuntu.com/questions/1460453/wifi-6e-ubuntu-20-04-not-able-to-connect
The 5.15 Linux kernel doesn’t natively support the latest Intel firmware. Intel’s core72 firmware only works with natively with 5.18 and above.
So I tried to upgrade the kernel of my Ubuntu Core installation through this command:
sudo snap install pc-kernel --channel=23.10/stable
but still I cannot make the hotspot working.
I know that @ogra has experimented a bit with WiFi in order to build this snap https://snapcraft.io/nm-wifi-hotspot
I used it and it works fine, but as soon as I switch to a WiFi 6 device this doesn’t work either.
Ok, after further investigation on my Ubuntu Core installation, I found out that Linux kernel 5.15 nor 6.5 have on board the required firmware for my wireless card Intel® Wi-Fi 6 AX201 160MHz. Here is the Intel official page for WiFi card driver: https://www.intel.com/content/www/us/en/support/articles/000005511/wireless.html
Now, thanks to this post Need to install RealTek RTL8812AU driver for Ubuntu Core 16 I understand I need to build my own custom pc-kernel snap. Here I ask to @ogra a little help because it’s my first time building a custom kernel snap. Is there any more exhaustive documentation than this https://ubuntu.com/core/docs/kernel-building which explain how to handle it?
Believing the right way is building up a custom kernel snap, I’m in the process of doing it. Unfortunately, I bumped into some errors while snapcrafting. I was able to fix some of those installing in the VM the missing packages
apt install build-essential flex bison
However, I am stuck with this compilation error which I cannot figure out
Failed to run 'make -j2 bzImage modules' for 'kernel': Exited with code 2.
Verify that the part is using the correct parameters and try again.
I get to this situation snapcrafting using both, multipass and lxd.
I am using this modified
dpkg-parsechangelog -l $DEBIAN/changelog -S version
summary: The Ubuntu generic Linux kernel
description: This Ubuntu generic Linux kernel
cp debian/scripts/retpoline-extract-one \
I’m using the master branch of git://kernel.ubuntu.com/ubuntu/ubuntu-focal.git
Does anybody have a clue about what I am doing wrong?
Unfortunately it seems there is a bug somewhere in the Make file of the Ubuntu Focal master branch.
I tried to build a custom kernel snap using a different branch (Ubuntu-5.4.0-65.73) and the compiling process runs smoothly.