[ubuntu] Server install and wireless

is your card recognized?

Check what card you have installed:

sudo lshw -C network

 read through untill yuo find "wireless"

If you have atheros;

network DISABLED
       description: Wireless interface
       product: AR242x / AR542x Wireless Network Adapter (PCI-Express)
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlp3s0
       version: 01
       serial: 00:23:4d:31:37:e6
       width: 64 bits
       clock: 33MHz
 

 ------------------------

[ubuntu] Server install and wireless