To list all configured networks, use
Next, you'll need to know which devices were found during boot. You can use
dmesg or look into
/var/log/boot.msg (this is a dump of the
dmesg output early after the hardware detection ran).
If the device isn't there, check what
lcpci tells you. That command lists all PCI devices connected to the BUS. If the device isn't there, there is a problem with the connection. If it is there, then use the device name to Google for the driver. Most often, the kernel will select the correct driver but sometimes, the driver is wrong. In this case, you need
lsmod (list active drivers),
rmmod (unload drivers at runtime) and
modprobe (load a driver at runtime).
If you found the driver, load it manually with
modprobe. If it works, add the line to
/etc/init.d/boot.local. If you have a driver conflict, add the name of the driver which you don't want to the
/etc/modprobe.d/00-blacklist like so: