Found: A USB wifi adaptor that works OOTB with CentOS 7

[pishotta]

Sorry, this is an answer without a question here, but after suffering much to get a usb wifi dongle working on my old Dell 430 laptop (downloading drivers, compiling, installing, etc., generally screwing up my installation), I tried the one I had in my Raspberry Pi, plugging it in right after a fresh CentOS install (w/ updates), rebooted (not sure if that was necessary), and voila: it came right up in the gnome gui for connection to my wifi network and I am using it now. It's an Edimax (cheap).

http://www.edimax.com/edimax/merchandis ... /ew-7811un

lsusb shows:

Bus 001 Device 003: ID 7392:7811 Edimax Technology Co., Ltd Bus 001 Device 003: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]

No guarantees, but it works super for me! (Now who wants an old ethernet cable?)

-- Fred P.

[TrevorH]

Thanks for the feedback, I'm sure it'll be useful.

My Dell D430 works out of the box BTW, using the mini-PCIE adapter that it shipped with

Code: Select all

0c:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection [8086:4229] (rev 61)

[WhatsHisName]

...I tried the one I had in my Raspberry Pi, plugging it in right after a fresh CentOS install (w/ updates), rebooted (not sure if that was necessary), and voila: it came right up in the gnome gui for connection to my wifi network and I am using it now...

Last time I checked, the Raspberry Pi ran on an ARM processor and there was/is no ARM version of CentOS.

Maybe you are talking about RedSleeve. Otherwise, where did you download CentOS for ARM from?

[TrevorH]

No, he's talking about taking the USB wireless adapter that he once had plugged into his RPi and moving it to his CentOS system...

[WhatsHisName]

OK. Now that makes sense.

[scottro]

I just ordered one myself. I had gotten a nice refurbished laptop from NewEgg (ThinkPad L420, 4 GB of RAM and i5 processor, for $249, free shipping.). Its wireless wasn't working with FreeBSD. (Haven't tried with CentOS--it did work with Fedora21). My boss lent me his Edimax and it worked, though I had to add license acceptance to /boot/loader.conf on my FreeBSD install.

If FreeBSD, which tends to support less hardware than Linux in general, works with it, I'm guessing it would be fine with CentOS-6 and 7.

[pishotta]

Thanks for the feedback, I'm sure it'll be useful.

My Dell D430 works out of the box BTW, using the mini-PCIE adapter that it shipped with

Code: Select all

0c:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection [8086:4229] (rev 61)

My D430 also has an internal wifi, but no joy. Must be a different version. So much in life depends on luck, alas... Will check when I get home.

[Greg_E]

I put that same mini pcie card in my laptop when Trevor recommended it to get my Bluetooth working, that was back with C6.5 and no problems when I did a clean install of 7 when it first came out. The BT support could use some work, but if you jump through a couple of hoops to initialize a device it works pretty well. No issues with WiFi anywhere I have tried to use it. I think that card cost me less than $20 including shipping, might have been less than $10.

I think Edimax either worked with the raspberry pie people or was chosen for the raspi because of its wide Linux support. Either way it is good to know there is a good and cheap solution.

[verve111]

Hi all.
Recently I've purchased TP-Link (TL-WN725N) wifi adapter. It has a rtl8188eu chipset. To make it run on Centos 7 I had to download device kernel module code from https://github.com/lwfinger/rtl8188eu/, then compile it and install. And then using wpa_supplicant and dhclient everything worked like a charm. Here is a compete http://soft29.info/blog/entry/centos-7-usb-wifi-8188eu post how I did it.

[rjt69]

CentOS6.7

i installed kmod-r8192cu-4.0.2_9000-2.el6.elrepo.i686 from elrepo but it still does not work on CentOS67. It is recognized, but most wireless commands error with "nl80211 not found." It is a command line only system without NetworkManager.

Both of the following have normal results:
ip link show dev wlan0
ifconfig wlan0