Re: Wpa_supplicant Error: No such device
On Fri, 12 Jul 2019 16:07:23 -0500
David Wright <deblis@lionunicorn.co.uk> wrote:
> On Fri 12 Jul 2019 at 12:36:33 (-0700), Patrick Bartek wrote:
> > On Fri, 12 Jul 2019 06:22:16 -0000 (UTC)
> > Bert Riding <reriding@xmission.com> wrote:
> >
> > > Yes, I'm sorry I didn't mention that my device name was merely an
> >
> > Didn't have to. I understood. It's just wlan0 USED to be the default
> > 1st wireless device, the last time I had to do this with another system
> > about 15 years ago, and I used it as a first test to bring UP the
> > device before reading the instructions. It failed, of course. Laziness.
> >
> > > example. I wonder if "ip link show" or "ls -l /sys/class/net" or the
> > > obsolete "ifconfig a" give the same device name. Udevadm might
> > > help, too. "udevadm info -e | grep .wl" for instance. The name you are
> > > using is the name using the MAC address, which is the last match as udev
> > > lists the names, and won't be used if udev finds another name first. See
> > > https://major.io/2015/08/21/understanding-systemds-predictable-network-device-names/
> >
> > Here's what that all shows on my system (wireless parts only).
> > Wireless USB dongle plugged in, but otherwise dormant.
> >
> > ip a
> >
> > 3: wlx00e04c2a23c4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state
> > DOWN mode DEFAULT group default qlen 1000 link/ether 00:e0:4c:2a:23:c4
> > brd ff:ff:ff:ff:ff:ff
> >
> > ls -l /sys/class/net
> >
> > lrwxrwxrwx 1 root root 0 Jul 12 07:48 wlx00e04c2a23c4
> > -> ../../devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3:1.0/net/wlx00e04c2a23c4
> >
> > /sbin/iw dev
> >
> > phy#0
> > Interface wlx00e04c2a23c4
> > ifindex 3
> > wdev 0x1
> > addr 00:e0:4c:2a:23:c4
> > type managed
> > txpower 0.00 dBm
> >
> > udevadm info -e | grep .wl
> >
> > E: RFKILL_TYPE=wlan
> > P: /devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3:1.0/net/wlx00e04c2a23c4
> > E:
> > DEVPATH=/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3:1.0/net/wlx00e04c2a23c4
> > E: DEVTYPE=wlan E: ID_NET_NAME=wlp0s18f2u3
> > E: ID_NET_NAME_MAC=wlx00e04c2a23c4
> > E: ID_NET_NAME_PATH=wlp0s18f2u3
> > E: INTERFACE=wlx00e04c2a23c4
> > E:
> > SYSTEMD_ALIAS=/sys/subsystem/net/devices/wlx00e04c2a23c4 /sys/subsystem/net/devices/wlx00e04c2a23c4
> >
> > As you can see, the wlx name is the only one that shows as far as I
> > can find. ifconfig is not installed.
>
> Here's mine. As you can see, it lists the iwlwifi driver,
> but I don't see anything for yours.
>
> E: DRIVER=iwlwifi
> E: RFKILL_TYPE=wlan
> P: /devices/pci0000:00/0000:00:1c.2/0000:02:00.0/net/wlp2s0
> E: DEVPATH=/devices/pci0000:00/0000:00:1c.2/0000:02:00.0/net/wlp2s0
> E: DEVTYPE=wlan
> E: ID_NET_DRIVER=iwlwifi
> E: ID_NET_NAME=wlp2s0
> E: ID_NET_NAME_MAC=wlx0c8bfd0b67fb
> E: ID_NET_NAME_PATH=wlp2s0
> E: INTERFACE=wlp2s0
> E: SYSTEMD_ALIAS=/sys/subsystem/net/devices/wlp2s0 /sys/subsystem/net/devices/wlp2s0
> E: RFKILL_NAME=ideapad_wlan
> E: RFKILL_TYPE=wlan
Thanks. Looks like your wifi is pci. Right? Mine's a USB and
DOWN/inactive (I was on wired ethernet) when I did the udevadm. But
the next time I bring it UP, I'll see what udevadm reports as the
driver. Probably nl80211.
Thanks, again, for the info. Every little bit helps to track down the
problem.
B
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