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#1 2019-10-16 16:29:30

jlc1975
Member
Registered: 2018-04-15
Posts: 2

Thinkpad X220 - wifi works fine on the LiveUSB, but not on the install

Hi All,

I'm installing Arch on a Thinkpad X220. I've done this before on several other X220s and never had any issues.

I'm able to connect to wifi when I'm booted from the usb stick, and I'm able to do pacstrap successfully. However, when I reboot the new installation, my wifi connection authenticates and immediately deauthenticates. Here is the output from dmesg:

[  175.315745] wlp3s0: authenticate with 14:ed:bb:5d:1e:79
[  175.321348] wlp3s0: send auth to 14:ed:bb:5d:1e:79 (try 1/3)
[  175.330171] wlp3s0: authenticated
[  175.330515] wlp3s0: waiting for beacon from 14:ed:bb:5d:1e:79
[  175.372217] wlp3s0: associate with 14:ed:bb:5d:1e:79 (try 1/3)
[  175.376152] wlp3s0: RX AssocResp from 14:ed:bb:5d:1e:79 (capab=0x411 status=0 aid=2)
[  175.381096] wlp3s0: associated
[  175.441923] IPv6: ADDRCONF(NETDEV_CHANGE): wlp3s0: link becomes ready
[  175.503445] audit: type=1130 audit(1571240851.348:21): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=netctl@wlp3s0\x2dATT9d6Vtr3 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[  175.506697] wlp3s0: deauthenticating from 14:ed:bb:5d:1e:79 by local choice (Reason: 3=DEAUTH_LEAVING)
[  175.720194] audit: type=1131 audit(1571240851.565:22): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=netctl@wlp3s0\x2dATT9d6Vtr3 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=failed'

Here's the info about my wireless card and driver from lspci -k:

03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor Peak]
	Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN
	Kernel driver in use: iwlwifi

I've gone back and booted from the LiveUSB multiple times, and when booted that way the wifi connection is stable. I've checked that the kernel module parameters for iwlwifi and iwldvm are the same when booted from usb vs. the SSD.

Thanks in advance for any input.
Jay

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#2 2019-10-16 18:00:09

jlc1975
Member
Registered: 2018-04-15
Posts: 2

Re: Thinkpad X220 - wifi works fine on the LiveUSB, but not on the install

I fixed the issue by installing dhcpcd. But I would like to learn more. Should this have been installed when I ran the following line from the installation instructions?

# pacstrap /mnt base linux linux-firmware

I don't think I've ever manually installed a dhcp client on past installs. Is this a recent change?

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#3 2019-10-16 18:03:37

loqs
Member
Registered: 2014-03-06
Posts: 17,192

Re: Thinkpad X220 - wifi works fine on the LiveUSB, but not on the install

Yes it is a recent change https://www.archlinux.org/news/base-gro … -required/
It is covered by the updated installation guide under "software necessary for networking".

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