Disable hostapd and dnsmasq across reboot

I have a Raspberry Pi 3 running GoPiGo 3.0.3. I would like the robot to boot and connect to my local WiFi and not start up its own WiFi access point. I have found the scripts to switch back and forth manually, but the changed settings do not survive a reboot. The wpa_supplicant service is disabled and hostapd/dnsmasq re-enabled with every reboot. How do I preserve the wpa_supplicant configuration as the default WiFi?

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I also ran into that. Suggest popping a note off to support@modrobotics.com

IIRC, the prior GoPiGo OS version succeded, but the latest did not. It’s been a while since, so I could be totally crazy.

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There is a special command/script that you can run that makes the switchover (either way) persistent.

I usually run it on every GoPiGo OS I run, unless there’s a special reason for it to be autonomous, (like my updated remote camera robot project).

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I found it.

It took most of the day to find, but here it is:

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Actually, I’d already found that service, and it was also recommended by modrobotics.com support. Unfortunately, disabling it didn’t work. I can switch to local WiFi, disable start_as_access_point, hostapd, and dnsmasq, and enable wpa_supplicant for auto start, and during the boot process something in systemd still turns off wpa_supplicant and turns on hostapd and dnsmasq, even with start_as_access_point disabled. It joins local WiFi for a couple of seconds, then reverts back to access point mode. Everyone is stumped at this point.

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I’ve been away from this for awhile so would you mind reminding me what your configuration is, the OS and version you are using, what version of Pi, etc., etc., etc.

[Oops! I just found it, Pi-3, GPGOS 3.0.3, etc.]

Is this on a GoPiGo robot? Do you know the version? (i.e. Color of PCB, (red/green ), number of connector pins (26/40) on the GPG board itself, etc.) If it’s a GoPiGo 3, I may be able to help.

Since I’m not clairvoyant, and I don’t have eyes on the back of my head, (:wink: :rofl:), if I send you a cloud upload link, is it possible for you to send me an image copy of your entire filesystem?

This way I can examine it personally, in detail, to try and replicate and solve your issue.

What say ye?

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Yes, this is on a GoPiGo robot. The following is from my /var/log/syslog file, demonstrating that the system comes up with local WiFi enabled, as expected. Then systemd appears to start the access point mode directly, enabling hostapd and dnsmasq. The start_as_access_point service remains disabled and never starts.

Jan 16 22:13:17 pi30 env[997]: wifi_led_statu.sh: ssid_check is pi30
Jan 16 22:13:31 pi30 systemd-timesyncd[381]: Synchronized to time server for the first time 45.33.103.94:123 (2.debian.pool.ntp.org).
Jan 16 22:13:31 pi30 env[997]: WiFi_led_status.sh: Detected Robot: GoPiGo3
Jan 16 22:13:31 pi30 env[997]: WiFi_led_status.sh: connection_status = -1
Jan 16 22:13:31 pi30 env[997]: WiFi_led_status.sh: No Access Point
Jan 16 22:13:31 pi30 env[997]: xxxxxxxxxx
Jan 16 22:13:31 pi30 env[997]: WiFi_led_status.sh: Yellow
Jan 16 22:13:33 pi30 env[997]: WiFi_led_status.sh, ssid: pi30
Jan 16 22:13:33 pi30 env[997]: wifi_led_statu.sh: ssid_check is pi30
Jan 16 22:13:34 pi30 env[997]: WiFi_led_status.sh: Detected Robot: GoPiGo3
Jan 16 22:13:34 pi30 env[997]: WiFi_led_status.sh: connection_status = -1
Jan 16 22:13:34 pi30 env[997]: WiFi_led_status.sh: No Access Point
.....
Jan 16 22:13:36 pi30 jupyter[826]: [I 22:13:36.728 LabApp] JupyterLab extension loaded from /home/jupyter/.local/lib/python3.7/site-packages/jupyterlab
Jan 16 22:13:36 pi30 jupyter[826]: [I 22:13:36.729 LabApp] JupyterLab application directory is /home/jupyter/.local/share/jupyter/lab
Jan 16 22:13:36 pi30 jupyter[826]: [I 22:13:36.749 LabApp] Serving notebooks from local directory: /home/jupyter
Jan 16 22:13:36 pi30 jupyter[826]: [I 22:13:36.750 LabApp] The Jupyter Notebook is running at:
Jan 16 22:13:36 pi30 jupyter[826]: [I 22:13:36.750 LabApp] http://pi30:8090/
Jan 16 22:13:36 pi30 jupyter[826]: [I 22:13:36.750 LabApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
Jan 16 22:13:36 pi30 jupyter[826]: [W 22:13:36.773 LabApp] No web browser found: could not locate runnable browser.
.....
Jan 16 22:13:40 pi30 systemd[1]: Starting Advanced IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP Authenticator...
Jan 16 22:13:40 pi30 hostapd[1783]: Configuration file: /etc/hostapd/hostapd.conf
Jan 16 22:13:40 pi30 dhcpcd[844]: wlan0: carrier lost
Jan 16 22:13:40 pi30 hostapd[1783]: wlan0: Could not connect to kernel driver
Jan 16 22:13:40 pi30 hostapd[1783]: Using interface wlan0 with hwaddr b8:27:eb:a5:14:93 and ssid "pi30"
Jan 16 22:13:40 pi30 hostapd[1783]: wlan0: interface state UNINITIALIZED->ENABLED
Jan 16 22:13:40 pi30 hostapd[1783]: wlan0: AP-ENABLED
Jan 16 22:13:40 pi30 systemd[1]: Started Advanced IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP Authenticator.
Jan 16 22:13:40 pi30 avahi-daemon[453]: Withdrawing address record for 10.89.1.168 on wlan0.
Jan 16 22:13:40 pi30 avahi-daemon[453]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 10.89.1.168.
Jan 16 22:13:40 pi30 avahi-daemon[453]: Interface wlan0.IPv4 no longer relevant for mDNS.
Jan 16 22:13:40 pi30 dhcpcd[844]: wlan0: deleting route to 10.89.1.0/24
Jan 16 22:13:40 pi30 dhcpcd[844]: wlan0: deleting default route via 10.89.1.254
Jan 16 22:13:40 pi30 dhcpcd[844]: wlan0: carrier acquired
Jan 16 22:13:40 pi30 dhcpcd[844]: wlan0: confile file changed, expiring leases
Jan 16 22:13:40 pi30 dhcpcd[844]: wlan0: IAID eb:a5:14:93
Jan 16 22:13:40 pi30 dhcpcd[844]: wlan0: probing address 10.10.10.10/24
Jan 16 22:13:40 pi30 systemd[1]: Stopping Raise network interfaces...
Jan 16 22:13:40 pi30 systemd[1]: networking.service: Succeeded.
Jan 16 22:13:40 pi30 systemd[1]: Stopped Raise network interfaces.
Jan 16 22:13:40 pi30 systemd[1]: Starting Raise network interfaces...
Jan 16 22:13:40 pi30 systemd[1]: Started Raise network interfaces.
Jan 16 22:13:40 pi30 systemd[1]: Reloading.
Jan 16 22:13:41 pi30 dhcpcd[844]: wlan0: carrier lost
Jan 16 22:13:41 pi30 kernel: [ 53.217866] ieee80211 phy0: brcmf_vif_set_mgmt_ie: vndr ie set error : -52
Jan 16 22:13:41 pi30 dhcpcd[844]: wlan0: carrier acquired
Jan 16 22:13:41 pi30 dhcpcd[844]: wlan0: IAID eb:a5:14:93
Jan 16 22:13:41 pi30 dhcpcd[844]: wlan0: probing address 10.10.10.10/24
Jan 16 22:13:41 pi30 dhcpcd[844]: wlan0: carrier lost
Jan 16 22:13:41 pi30 systemd[1]: Stopping dhcpcd on all interfaces...
Jan 16 22:13:41 pi30 dhcpcd[1942]: sending signal TERM to pid 844
Jan 16 22:13:41 pi30 dhcpcd[1942]: waiting for pid 844 to exit
Jan 16 22:13:41 pi30 dhcpcd[1942]: sending signal TERM to pid 844
Jan 16 22:13:41 pi30 dhcpcd[1942]: waiting for pid 844 to exit
Jan 16 22:13:41 pi30 dhcpcd[844]: received SIGTERM, stopping
Jan 16 22:13:41 pi30 dhcpcd[844]: wlan0: removing interface
Jan 16 22:13:41 pi30 dhcpcd[844]: eth0: removing interface
Jan 16 22:13:42 pi30 dhcpcd[844]: dhcpcd exited
Jan 16 22:13:42 pi30 env[997]: WiFi_led_status.sh, ssid: pi30
Jan 16 22:13:42 pi30 env[997]: wifi_led_statu.sh: ssid_check is pi30
Jan 16 22:13:42 pi30 env[997]: WiFi_led_status.sh: Detected Robot: GoPiGo3
Jan 16 22:13:42 pi30 env[997]: WiFi_led_status.sh: connection_status = -1
Jan 16 22:13:42 pi30 env[997]: WiFi_led_status.sh: No Access Point
Jan 16 22:13:42 pi30 env[997]: no Wifi Connection detected: OFF
Jan 16 22:13:42 pi30 systemd[1]: dhcpcd.service: Succeeded.
Jan 16 22:13:42 pi30 systemd[1]: Stopped dhcpcd on all interfaces.
Jan 16 22:13:42 pi30 systemd[1]: Starting dhcpcd on all interfaces...
Jan 16 22:13:42 pi30 dhcpcd[1976]: dev: loaded udev
Jan 16 22:13:42 pi30 dhcpcd[1976]: forked to background, child pid 1978
Jan 16 22:13:42 pi30 systemd[1]: Started dhcpcd on all interfaces.
Jan 16 22:13:42 pi30 dhcpcd[1978]: wlan0: connected to Access Point `'
Jan 16 22:13:42 pi30 dhcpcd[1978]: DUID 00:01:00:01:26:60:d3:bd:dc:a6:32:2d:d2:ae
Jan 16 22:13:42 pi30 dhcpcd[1978]: eth0: IAID eb:f0:41:c6
Jan 16 22:13:42 pi30 dhcpcd[1978]: eth0: adding address fe80::f935:3e98:71e7:2b8d
Jan 16 22:13:42 pi30 dhcpcd[1978]: ipv6_addaddr1: Operation not supported
Jan 16 22:13:42 pi30 dhcpcd[1978]: wlan0: waiting for carrier
Jan 16 22:13:43 pi30 kernel: [ 54.624981] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
Jan 16 22:13:43 pi30 systemd[1]: Reloading.
Jan 16 22:13:43 pi30 dhcpcd[1978]: eth0: rebinding lease of 10.89.1.150
Jan 16 22:13:43 pi30 dhcpcd[1978]: eth0: leased 10.89.1.150 for infinity
Jan 16 22:13:43 pi30 dhcpcd[1978]: eth0: adding route to 10.89.1.0/24
Jan 16 22:13:43 pi30 dhcpcd[1978]: eth0: adding default route via 10.89.1.254
Jan 16 22:13:43 pi30 dhcpcd[1978]: eth0: soliciting an IPv6 router
Jan 16 22:13:43 pi30 dhcpcd[1978]: ipv6nd_startrs1: Address family not supported by protocol
Jan 16 22:13:43 pi30 systemd[1]: Reloading.
Jan 16 22:13:44 pi30 systemd[1]: systemd-hostnamed.service: Succeeded.
Jan 16 22:13:44 pi30 systemd[1]: Reloading.
Jan 16 22:13:45 pi30 env[997]: WiFi_led_status.sh, ssid: pi30
Jan 16 22:13:45 pi30 env[997]: wifi_led_statu.sh: ssid_check is pi30
Jan 16 22:13:45 pi30 systemd[1]: Starting dnsmasq - A lightweight DHCP and caching DNS server...
Jan 16 22:13:45 pi30 dnsmasq[2067]: dnsmasq: syntax check OK.
Jan 16 22:13:46 pi30 dnsmasq[2091]: started, version 2.80 cachesize 150
Jan 16 22:13:46 pi30 dnsmasq[2091]: compile time options: IPv6 GNU-getopt DBus i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack ipset auth DNSSEC loop-detect inotify dumpfile
Jan 16 22:13:46 pi30 dnsmasq[2091]: warning: interface wlan0 does not currently exist
Jan 16 22:13:46 pi30 dnsmasq[2091]: warning: ignoring resolv-file flag because no-resolv is set
Jan 16 22:13:46 pi30 dnsmasq-dhcp[2091]: DHCP, IP range 10.10.10.11 -- 10.10.10.254, lease time 2h
Jan 16 22:13:46 pi30 dnsmasq[2091]: using nameserver 8.8.4.4#53
Jan 16 22:13:46 pi30 dnsmasq[2091]: using nameserver 8.8.8.8#53
Jan 16 22:13:46 pi30 dnsmasq[2091]: read /etc/hosts - 9 addresses
Jan 16 22:13:46 pi30 env[997]: WiFi_led_status.sh: Detected Robot: GoPiGo3
Jan 16 22:13:46 pi30 env[997]: WiFi_led_status.sh: connection_status = -1
Jan 16 22:13:46 pi30 env[997]: WiFi_led_status.sh: No Access Point
Jan 16 22:13:46 pi30 env[997]: no Wifi Connection detected: OFF
Jan 16 22:13:46 pi30 dnsmasq[2094]: Too few arguments.
Jan 16 22:13:46 pi30 systemd[1]: Started dnsmasq - A lightweight DHCP and caching DNS server.
Jan 16 22:13:46 pi30 systemd[1]: Reached target Host and Network Name Lookups.
Jan 16 22:13:46 pi30 systemd[1]: Reloading.
Jan 16 22:13:47 pi30 systemd[1]: Reloading.
Jan 16 22:13:48 pi30 systemd[1]: Reloading.
Jan 16 22:13:48 pi30 env[997]: WiFi_led_status.sh, ssid: pi30
Jan 16 22:13:48 pi30 env[997]: wifi_led_statu.sh: ssid_check is pi30
Jan 16 22:13:49 pi30 systemd[1]: Stopping Advanced IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP Authenticator...
Jan 16 22:13:49 pi30 systemd[1]: hostapd.service: Succeeded.
Jan 16 22:13:49 pi30 systemd[1]: Stopped Advanced IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP Authenticator.
Jan 16 22:13:49 pi30 systemd[1]: Starting Advanced IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP Authenticator...
Jan 16 22:13:49 pi30 hostapd[2231]: Configuration file: /etc/hostapd/hostapd.conf
Jan 16 22:13:49 pi30 hostapd[2231]: wlan0: Could not connect to kernel driver
Jan 16 22:13:49 pi30 hostapd[2231]: Using interface wlan0 with hwaddr b8:27:eb:a5:14:93 and ssid "pi30"
Jan 16 22:13:49 pi30 env[997]: WiFi_led_status.sh: Detected Robot: GoPiGo3
Jan 16 22:13:49 pi30 env[997]: WiFi_led_status.sh: connection_status = -1
Jan 16 22:13:49 pi30 env[997]: WiFi_led_status.sh: No Access Point
Jan 16 22:13:49 pi30 hostapd[2231]: wlan0: interface state UNINITIALIZED->ENABLED
Jan 16 22:13:49 pi30 hostapd[2231]: wlan0: AP-ENABLED
Jan 16 22:13:49 pi30 env[997]: no Wifi Connection detected: OFF
Jan 16 22:13:49 pi30 dhcpcd[1978]: wlan0: carrier acquired
Jan 16 22:13:49 pi30 systemd[1]: Started Advanced IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP Authenticator.
Jan 16 22:13:49 pi30 dhcpcd[1978]: wlan0: IAID eb:a5:14:93
Jan 16 22:13:49 pi30 dhcpcd[1978]: wlan0: adding address fe80::a348:e8e3:3081:52dc
Jan 16 22:13:49 pi30 dhcpcd[1978]: ipv6_addaddr1: Operation not supported
Jan 16 22:13:49 pi30 dhcpcd[1978]: wlan0: probing address 10.10.10.10/24
Jan 16 22:13:49 pi30 systemd[1]: Reloading.
Jan 16 22:13:50 pi30 dhcpcd[1978]: wlan0: soliciting an IPv6 router
Jan 16 22:13:50 pi30 dhcpcd[1978]: ipv6nd_startrs1: Address family not supported by protocol
Jan 16 22:13:50 pi30 systemd[1]: Stopping WPA supplicant...
Jan 16 22:13:50 pi30 systemd[1]: wpa_supplicant.service: Succeeded.
Jan 16 22:13:50 pi30 systemd[1]: Stopped WPA supplicant.
Jan 16 22:13:52 pi30 env[997]: WiFi_led_status.sh, ssid: pi30
Jan 16 22:13:52 pi30 env[997]: wifi_led_statu.sh: ssid_check is pi30
Jan 16 22:13:52 pi30 env[997]: WiFi_led_status.sh: Detected Robot: GoPiGo3
Jan 16 22:13:52 pi30 env[997]: WiFi_led_status.sh: connection_status = -1
Jan 16 22:13:52 pi30 env[997]: WiFi_led_status.sh: WiFi Broadcasting SSID: pi30
Jan 16 22:13:53 pi30 env[997]: WARNING: Could not obtain IP address for interface wlan0. Using 0.0.0.0 for
Jan 16 22:13:53 pi30 env[997]: the source address, which is probably not what you want.
Jan 16 22:13:53 pi30 env[997]: Either configure wlan0 with an IP address, or manually specify the address
Jan 16 22:13:53 pi30 env[997]: with the --arpspa option.
Jan 16 22:13:53 pi30 kernel: [ 65.314808] device wlan0 entered promiscuous mode
Jan 16 22:13:54 pi30 dhcpcd[1978]: wlan0: using static address 10.10.10.10/24
Jan 16 22:13:54 pi30 avahi-daemon[453]: Joining mDNS multicast group on interface wlan0.IPv4 with address 10.10.10.10.
Jan 16 22:13:54 pi30 dhcpcd[1978]: wlan0: adding route to 10.10.10.0/24
Jan 16 22:13:54 pi30 avahi-daemon[453]: New relevant interface wlan0.IPv4 for mDNS.
Jan 16 22:13:54 pi30 avahi-daemon[453]: Registering new address record for 10.10.10.10 on wlan0.IPv4.
Jan 16 22:13:57 pi30 kernel: [ 69.062830] device wlan0 left promiscuous mode
<b>Jan 16 22:13:57 pi30 env[997]: WiFi_led_status.sh: turn LED GREEN
Jan 16 22:13:57 pi30 env[997]: WiFi_led_status.sh: WiFi Not connected to a device
Jan 16 22:13:59 pi30 env[997]: WiFi_led_status.sh, ssid: pi30
Jan 16 22:13:59 pi30 env[997]: wifi_led_statu.sh: ssid_check is pi30
Jan 16 22:14:00 pi30 env[997]: WiFi_led_status.sh: Detected Robot: GoPiGo3
2 Likes

I am THOROUGHLY confused - it makes no sense to me except that maybe you have a bad download or are using a low quality SD card.[1]

I, myself, have beaten that OS to a pulp in testing and I never experienced anything like that, (as I remember).

Right now, my 'bot, (Charlie), is completely disassembled because I accidentally broke the bottom plate. (Which I am experimenting with repair methods.

Have you tried a fresh re-download to a different SD card?

Can you use the backup feature and create a zipped copy of your current filesystem?

You can upload it here:

. . . and I will take a look at it on my own 'bot, though it won’t be done immediately.

Notes:

  1. The later versions of the Raspberry Pi, (version 3 and later), are extremely sensitive to the quality of the SD card being used.
     
    Bargain brand cards just won’t cut it. I recommend cards from SanDisk, Toshiba, and (believe it or not), Micro Center.
     
    Cards from Kingston, PNY, and other no-name brands are usually a problem waiting to happen.
     
    If possible, try to get “application rated” cards that are rated A1 or better.
1 Like