I have installed SparkyLinux (sparkylinux-5.12-x86_64-xfce) on a Lenovo M55 PC. For Wifi I am using a USB dongle that uses the Realtek rtl8188fu driver. However the OS does not recognize this device. It does not have a Wifi driver for it. I tried using the instruction from the following webpage :- https://github.com/kelebek333/rtl8188fu
. First I tried doing it using the Manual commands but the 'sudo dkms build rtl8188fu/1.0 ' command failed, with :- your kernel headers for kernel 4.19.0-9-amd64 cannot be found at /lib/modules/4.19.0-9-amd64/build or /lib/modules/4.19.0-9-amd64/source . I then tried to add it from a repository as shown in the webpage. I could not add the ppa:kelebek333/kabosuz repository. However I then install Linux Lite ( linux-lite-5.0-64bit ) and once again the Wifi driver rtl8188fu was missing. I then added the repository as called out in the above webpage and installed the driver without any problems. I am now using Linux Lite, but would like to go back to SparkyLinux if I can install the Realtek rtl8188fu Wifi driver. Dows anybody have any ideas?