# Yocto thud missing libcrypt breaks wpa\_supplicant **URL:** \ **Category:** General Discussions\ **Tags:** yocto, raspberry-pi-3, thud\ **Created:** [September 27, 2019, 8:57am UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080 "2019-09-27T08:57:15Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![elct9620](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/elct9620/32/63_2.png) [@elct9620](https://hub.mender.io/u/elct9620)\ **Post date:** [September 27, 2019, 8:57am UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/1 "2019-09-27T08:57:15Z")
I am trying to upgrade from `sumo` to `thud` but I got something wrong. After I boot the Raspberry Pi and the wpa\_supplicant status always shows `inactive (dead)`, and I found some message from `/var/log/user.log` ```auto Jan 1 00:00:48 raspberrypi3 wpa_supplicant: Libgcrypt warning: missing initialization - please fix the application ``` Does anyone have the same problem as me? * * * Update: The errors message is shown after I manual run `systemctl start wpa_supplicant-nl80211@wlan0` But I cannot auto start correctly when rpi boot. ---
**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\ **Post date:** [September 27, 2019, 9:12am UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/2 "2019-09-27T09:12:35Z")
I seem to have seen this at some point, but do not actually recall what it was and how I fixed it. I suspect that it is not a problem with libgcrypt, and you can probably check your filesystem and see that it is present. It is just a confusing error message, I would check the `wpa_supplication` logs (maybe increase verbosity), and I suspect that that there is something else going wrong before this is shown. ---
**Author:** ![elct9620](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/elct9620/32/63_2.png) [@elct9620](https://hub.mender.io/u/elct9620)\ **Post date:** [September 27, 2019, 9:52am UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/3 "2019-09-27T09:52:48Z")
I create a new environment to compile thud and `libcrypt.so` is not found. But in `sumo` it can be found. And I am not sure is related to this: [http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=27dca7d2e955370166042c05aef1524fe1fbc70b](http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=27dca7d2e955370166042c05aef1524fe1fbc70b) * * * Update: The errors message is shown after I manual run `systemctl start wpa_supplicant-nl80211@wlan0` But I cannot auto start correctly when rpi boot. ---
**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\ **Post date:** [September 27, 2019, 4:25pm UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/4 "2019-09-27T16:25:31Z")
I gave it a go on `thud` as well. I could not reproduce your problem unfortunately. Might be something environment specific. ---
**Author:** ![elct9620](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/elct9620/32/63_2.png) [@elct9620](https://hub.mender.io/u/elct9620)\ **Post date:** [September 28, 2019, 6:12am UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/5 "2019-09-28T06:12:33Z")
I follow this post to create a new environment but still missing libcrypt. [https://hub.mender.io/t/raspberry-pi-3-model-b-b/57/21](https://hub.mender.io/t/raspberry-pi-3-model-b-b/57/21) I use the CentOS7 to compile this project, will this break anything? ---
**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\ **Post date:** [September 28, 2019, 7:57am UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/6 "2019-09-28T07:57:30Z")
> [@elct9620](#): > > I follow this post to create a new environment but still missing libcrypt. > [Raspberry Pi 3 Model B/B+ - #21](https://hub.mender.io/t/raspberry-pi-3-model-b-b/57/21) This will not install the necessary parts you need for WiFi out-of-the-box, as this is a minimalist environment (offered by Yocto Project). I would recommend you try adding the following to your `local.conf`: ```auto DISTRO_FEATURES_append = " wifi" ``` You can also take a look at [meta-mender/meta-mender-raspberrypi-demo at master · mendersoftware/meta-mender · GitHub](https://github.com/mendersoftware/meta-mender/tree/master/meta-mender-raspberrypi-demo), which contains some bits on getting WiFi running on a Raspberry Pi ---
**Author:** ![elct9620](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/elct9620/32/63_2.png) [@elct9620](https://hub.mender.io/u/elct9620)\ **Post date:** [September 28, 2019, 11:15am UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/7 "2019-09-28T11:15:40Z")
The problem is happen when I use `meta-mender-raspberrypi-demo` and my version copy from it are got this error. I am not sure what is wrong. It is work correctly when I use `sumo`, I didn’t change anything and switch to `thud` branch and it break. ---
**Author:** ![drewmoseley](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/drewmoseley/32/47_2.png) [@drewmoseley](https://hub.mender.io/u/drewmoseley)\ **Post date:** [September 30, 2019, 5:05pm UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/8 "2019-09-30T17:05:37Z")
I just ran this from scratch using the exact instructions in the hub post. The only change I made was to add the meta-mender-raspberrypi-demo layer. I don’t have a /var/log/user.log file. I’m not sure what would be creating that. Do you have any extra software installed? I do see the “dead” status of the wpa\_supplicant service but wpa\_supplicant-nl80211@wlan0 shows as live. And as far as I know this is expected when using systemd-networkd. ```auto root@raspberrypi3:~# systemctl status wpa_supplicant | cat ● wpa_supplicant.service - WPA supplicant Loaded: loaded (/lib/systemd/system/wpa_supplicant.service; disabled; vendor preset: enabled) Active: inactive (dead) root@raspberrypi3:~# systemctl status wpa_supplicant-nl80211@wlan0 | cat ● wpa_supplicant-nl80211@wlan0.service - WPA supplicant daemon (interface- and nl80211 driver-specific version) Loaded: loaded (/lib/systemd/system/wpa_supplicant-nl80211@.service; disabled; vendor preset: enabled) Active: active (running) since Mon 2019-09-30 17:02:08 UTC; 2min 36s ago Main PID: 294 (wpa_supplicant) CGroup: /system.slice/system-wpa_supplicant\x2dnl80211.slice/wpa_supplicant-nl80211@wlan0.service └─294 /usr/sbin/wpa_supplicant -c/etc/wpa_supplicant/wpa_supplicant-nl80211-wlan0.conf -Dnl80211 -iwlan0 Sep 30 17:03:29 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:03:37 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:03:45 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:03:53 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:04:01 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:04:09 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:04:16 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:04:24 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:04:32 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan Sep 30 17:04:40 raspberrypi3 wpa_supplicant[294]: wlan0: Failed to initiate sched scan root@raspberrypi3:~# ``` ---
**Author:** ![elct9620](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/elct9620/32/63_2.png) [@elct9620](https://hub.mender.io/u/elct9620)\ **Post date:** [September 30, 2019, 5:20pm UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/9 "2019-09-30T17:20:37Z")
The `/var/log/user.log` will generated when use `core-image-full-cmdline`, but I found the problem seems not related this error message. My `wpa_supplicant-nl80211@wlan0` is dead and unable to connect the network even I just add `mender-mender-raspberrypi-demo-layer` with their dependencies. ---
**Author:** ![rmbedded](https://avatars.discourse-cdn.com/v4/letter/r/90ced4/32.png) [@rmbedded](https://hub.mender.io/u/rmbedded)\ **Post date:** [March 29, 2021, 12:55pm UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/11 "2021-03-29T12:55:17Z")
Hi @mirzak, Sorry if I’m wrongly posting in this old topic, but it’s related so I figured I wouldn’t start a new one. I encountered similar issue, however not causing a complete wpa\_supplicant fail and for newer yocto brach. The case specification: - Yocto release: warrior, - Layers included: - poky: meta, meta-poky, meta-yocto-bsp - meta-openembedded: meta-oe, meta-python, meta-networking, meta-multimedia - meta-raspberrypi - meta-mender: meta-mender-core, meta-mender-raspberrypi - wpa-supplicant version: 2.7, - libgcyrpt files in rootfs: `/usr/lib/libgcrypt.so.20` and `/usr/lib/libgcrypt.so.20.2.4` When I run wpa\_passphrase or wpa\_supplicant (with parameters -i wlan0 - B -Dnl80211 -P /var/run/wpa\_supplicant.wlan0.pid) in syslog I get following warnings: `user.warn wpa_passphrase: Libgcrypt warning: missing initialization - please fix the application` `user.warn wpa_supplicant: Libgcrypt warning: missing initialization - please fix the application` This also happens when wpa\_supplicant is started with the same parameters by the `/etc/network/if-pre-up.d/wpa_supplicant` script. Generally the device connects to the access point, receives a network address and further communication is possible (e.g. access to the Internet) Running wpa without running in the background and with increased logging - I did not notice any warnings in wpa output. Do you know what could be causing this warning to be generated? Could it cause a potential risk for communications security? Thank you. ---
**Author:** ![dellgreen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/dellgreen/32/85_2.png) [@dellgreen](https://hub.mender.io/u/dellgreen)\ **Post date:** [March 29, 2021, 2:11pm UTC](https://hub.mender.io/t/yocto-thud-missing-libcrypt-breaks-wpa-supplicant/1080/12 "2021-03-29T14:11:08Z")
I have seen this issue for a long time now on my projects, while not observing any side affects by it. I have used wpa\_supplicant 2.6 thru to 2.9 and the warning still exists. It very much looks like the wpa\_supplicant code is not initializing the libgrcrypt library as per the requirements. [https://www.gnupg.org/documentation/manuals/gcrypt/Initializing-the-library.html](https://www.gnupg.org/documentation/manuals/gcrypt/Initializing-the-library.html) > might be worth filing an issue/pull request with the project, seems a simple fix