Rick,

On 2016-02-25 09:49, Rick Stevens wrote:
On 02/24/2016 01:53 PM, Philip Rhoades wrote:
People,

I have installed the b43 WiFi driver (from memory I think I had problems
with the b43-fwcutter RPM and had to install it manually) but in any
case it works generally with this old NetBook both in X and from the
console - _IF_ I log in from the netbook first . . if I reboot the
NetBook remotely and try and ssh to it when it comes back up, the
network isn't accessible. So I thought I would go through the exercise of getting rid of NetworkManager and going back to a traditional network
setup and I followed the instructions here:

https://onemoretech.wordpress.com/2014/08/18/disabling-networkmanager-step-by-step


- which didn't actually work - the problem is, as soon as I do:

   systemctl stop NetworkManager

the little LED WiFi light goes out on the keyboard and it seems there is nothing I can do to get it on again - the manual slider switch does not
work (I just get kbd unrecognised key errors).  lsmod reports that all
the modules are still loaded as for NetworkManager.  As soon as I
restart NetworkManager, the WiFi light comes back on - so the question
is: what is NM doing to enable the WiFi switch? I think if I could find
that out, I could get the traditional networking to function . .

 From the attached /var/log/messages, you can see the result of:

   systemctl stop NetworkManager

before the:

"================================================================"

and  the result of:

   systemctl start NetworkManager

after.  You can see the wlan0 deauthenticating and "link is not ready"
messages.

Not sure where to go from here - suggestions?

IIRC, stopping NetworkMangler makes it disable the wireless (and
bluetooth and mobile broadband if you have it) via rfkill. I think
that's overstepping its rights a bit (no, actually overstepping its
rights by a TON), but there's a hell of a lot I dislike intensely about
systemd and NetworkMangler (especially NetworkMangler's lack of
documentation).

Ok, turning off my rant valve, you can walk down the /sys/class/rfkill
tree, look for the symlink that points at your wireless, and poke the
"state" file to 1 to turn the radio back on. In my case:

        echo 1 >/sys/class/rfkill/rfkill1/state

I also have a /sys/class/rfkill/rfkill3 symlink, but it points at the
bluetooth device.


I have:

/sys/class/rfkill/rfkill0/device -> ../../../acer-wmi
/sys/class/rfkill/rfkill1/device -> ../../../acer-wmi
/sys/class/rfkill/rfkill2/device -> ../../phy0

So I am presuming 0 is the WiFi.


An easier way might be installing the rfkill RPM and using its tools to
re-enable the wireless. First, see if wifi is disabled

        rfkill list wifi


Doing:

  ffkill list

Gives:

0: acer-wireless: Wireless LAN
        Soft blocked: no
        Hard blocked: no
1: acer-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no
2: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no


If you see "Soft blocked: yes" then that's how it got disabled. "Hard
blocked: yes" indicates the physical switch is turned off and doing
the
soft unblock below won't help.

To re-enable soft-blocked devices:

        rfkill unblock wifi


Doing:

  systemctl stop NetworkManager

turns off the WiFi light but does not change the Soft blocked result.

Making changes to /etc/sysconfig/network-scripts/ifcfg-* as recommended and then doing:

  systemctl start network

turns the WiFi light back on (!) but fails with a job error - doing:

  systemctl status network

shows:

Bringing uup interface Billion_1: command failed: Network is down (-100)
  Failed to start LSB: Bring up/down networking

Doing:

  ifup Billion_1

Gives:

  wlan0 (phy #0): failed to connect, status: 1: Unspecified failure
  RTNETLINK answers: File exists

I seem to be making progress but am still not quite there yet. Even though I have since had pointed out to me a way of getting NetworkManager to work reliably . . now I have started this exercise, I would like to get the old network method working . .

Thanks,

Phil.
--
Philip Rhoades

PO Box 896
Cowra  NSW  2794
Australia
E-mail:  p...@pricom.com.au
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