Got this issue when update Ubuntu kernel to 5.10.7-051007 and got this problem
when install rtl8821ce driver.
Seem like new Debian kernel including 5.10 > 5.11 trying to change module.lsb
to module.lsb.S but the dkms cannot read the S file extension and trying to
grab the lsb file and that where
I got this problem when install Ubuntu too. My laptop have NVIDIA
graphic card and secure boot disabled. The installer see the error but
when I remove and reboot laptop, Ubuntu installed on laptop but missing
NVIDIA XServer Settings. But funny thing that it's appear on my Ubuntu
boot media that usi