In the manual network installation there's a passage stating: "If however you receive the following error, the network card is not detected:" Then follows an error that the interface doesn't exist. Basically there's nothing to be detected. It is a matter of either the driver for the NIC is loaded or not. I suggest adding hints what to do, if the user gets such error message: List currently loaded modules, identify the module that is required for his NIC model and make, eventually instructions how to get the module loaded. Reproducible: Always
We already have instructions on how to check for available modules and how to load them immediately prior to that bit: *** To find out what kernel modules we provide for networking, use ls: Code Listing 10: Searching for provided modules # ls /lib/modules/`uname -r`/kernel/drivers/net If you find a driver for your network card, use modprobe to load the kernel module: Code Listing 11: Using modprobe to load a kernel module (As an example, we load the pcnet32 module) # modprobe pcnet32 To check if your network card is now detected, use ifconfig. A detected network card would result in something like this: *** I think they are sufficient.