How do I enable the wireless network adapter on centos 7 minimal install?
The ifup command is the really old way of doing things and requires manual configuration. For wireless on CentOS 7 you almost certainly want to use NetworkManager directly either through GUI (Gnome/KDE settings or nm-applet and nm-connection-editor for lightweight WMs) or using nmcli.
The following example (as root) creates a connection configuration for your WiFi:
nmcli dev wifi connect my-wireless-ssid password my-secret-password
But next time you don't want to create it again but you rather want to work with connection profiles:
nmcli connection show
nmcli connection up my-connection
Once you are up and running on your WiFi network, you can learn more about the tools.
Manish Batra
Updated on September 18, 2022Comments
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Manish Batra over 1 year
I have just installed centos 7 over an old windows PC. The centos 7 image was of minimal install as I had only 4 GB of pendrive available.
The wifi driver named wlp18s0b1 shows in the list if I do
ip link
but it's configuration file is not there in the /etc/sysconfig/network-scritps/ so I can't enable this interface usingifup
. ifup wlp18s0b1 says the following./sbin/ifup: configuration for wlp18s0b1 not found.
Usage: ifup <configuration>
the option
nmcli d
shows the wifi device wlp18s0b1 listed along with the ethernet card but when I donmcli conn up
it says the following .Error: unknown connection wlp18s0b1
I am not sure how to bring this device up with
nmcli
and I don't have any extra network tools such asiw, iwconfig, ifconfig, dhclient
available as it was a minimal install.I only have access to wifi from here so can't use ethernet to install these as well.