Comment 3 for bug 2028844

Building module:
Cleaning build area...
make -j16 KERNELRELEASE=6.2.0-26-generic -C /lib/modules/6.2.0-26-generic/build M=/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build...^[[A^[[D.^[[B^[[B^[[D^[[B^[[C^[[B^[[C.^[[D(bad exit status: 2)
^[[A^[[C^[[A^[[C^[[A^[[D^[[B^[[D^[[B^[[D^[[B^[[D^[[C^[[B^[[C^[[A^[[D^[[D^[[DError! Bad return status for module build on kernel: 6.2.0-26-generic (x86_64)
Consult /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information.
Sign command: /usr/bin/kmodsign
Signing key: /var/lib/shim-signed/mok/MOK.priv
Public certificate (MOK): /var/lib/shim-signed/mok/MOK.der

You have an unsupported DKMS module installed. Remove it and retry the upgrade:

$ dkms remove bcmwl/6.30.223.271+bdcom --all