I looked into the difference between a focal classic image (with kernel 5.4.0-1008-raspi) where I can see the wlan interface and the uc20 beta images where I cannot, and I see with the uc20 image, all of the broadcom related kernel modules that are loaded in the focal classic image are also loaded in the uc20 image, with a few additional ones. Additionally, as per Dave, I checked /lib/firmware/brcm, and this directory exists on uc20 and matches the contents of what's on classic images.
For reference, attaching lsmod of both the focal classic image and the uc20 image. Focal classic lsmod: https://pastebin.ubuntu.com/p/4PxbFJRH82/ uc20 lsmod: https://pastebin.ubuntu.com/p/JRCVr4y76f/ So afaict this doesn't seem kernel module related, though one difference is that we don't have the full set of kernel modules available at the expected directory during the initramfs on uc20, while we might have that available on the focal classic image, but I don't see why this would affect anything. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878258 Title: wifi missing on core20 image with rpi To manage notifications about this bug go to: https://bugs.launchpad.net/snapd/+bug/1878258/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs