gailu

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About gailu

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  1. This is to update that problem was not with the Armbian image. There was a third party app (that we outsourced to a freelancer). He made a check when networks goes down and does not recover automatically within two minutes it restarted programmatically. Extremely sorry to trouble you.
  2. No difference even after upgrade. Ubuntu 16.04.3 LTS orangepizero ttyS0 orangepizero login: root Password: Last login: Fri Feb 2 07:41:04 IST 2018 on ttyS0 ___ ____ _ _____ / _ \ _ __ __ _ _ __ __ _ ___ | _ \(_) |__ /___ _ __ ___ | | | | '__/ _` | '_ \ / _` |/ _ \ | |_) | | / // _ \ '__/ _ \ | |_| | | | (_| | | | | (_| | __/ | __/| | / /| __/ | | (_) | \___/|_| \__,_|_| |_|\__, |\___| |_| |_| /____\___|_| \___/ |___/ Welcome to ARMBIAN 5.38 stable Ubuntu 16.04.3 LTS 3.4.113-sun8i System load: 0.91 0.6
  3. Actually I am facing issue - when my AP is OFF and I boot OPI Zero board boots and automatically shutdown and this cycle continues. If AP is ON then it connects with AP works perfectly and no automatic shutdown happens. To recreate scenario I just unloaded unloaded xradio_wlan module (rmmod xradio_wlan) and I could see the same behaviour that target reboots without doing anything else. My aim is to stop automatic shutdown/reboot when AP is off, so that connect to AP whenever it is switched on. But I am not able to find the reason why the target reboot if WiFi radio is
  4. Hi Experts, Setup: Ubuntu Xenial image on Orange Pi Zero Target boots fine and WiFi working stable. If I remove xradio_wlan module (rmmod xradio_wlan) target start rebooting (shutdown followed by reboot) automatically within 2 minutes and no information is captured in syslog to indicate the reason of reboot. I understand that something is dependent on wlan that is causing system to shutdown. I am looking for help to identify what causes shutdown. Can you provide some pointers which log/service should I look at? Thank you in advance
  5. I understand that no one is interested to support this. But I am sure that someone could advise based on log how to stop reboot when. specifically following logs where reboot is triggered [ TIME ] Timed out waiting for device dev-ttyGS0.device. [DEPEND] Dependency failed for Serial Getty on ttyGS0. [ SKIP ] Ordering cycle found, skipping Journal Socket [ SKIP ] Ordering cycle found, skipping File...2eba-571d-4583-8873-97f09353655c [ OK ] Stopped Update UTMP about System Runlevel Changes. Stopping Save/Restore Sound Card State... [ OK ] Stopped target Graphical Interface
  6. No clue?? Any pointer? Is there a way to disable the service?
  7. Providing Failure and Successful scenario logs. Hope this will help to identify the problem. We need login prompt irrespective WiFi AP is up or down. Logs of Failure When WiFi Router was off Successful boot Log with Login Prompt when WiFi Router was On
  8. Hi Experts, I am using Armbian Ubuntu Xenial image on Orange Pi Zero and I get following Failure during boot after which it starts rebooting itself. [ TIME ] Timed out waiting for device dev-ttyGS0.device. [DEPEND] Dependency failed for Serial Getty on ttyGS0. THIS HAPPENS ONLY WHEN WIFI (SSID) CONFIGURED IN THE IMAGE IS POWERED OFF. IF WIFI ROUTER IS ON, IT SUCCESSFULLY GOES TO THE LOGIN PROMPT. Is there specific boot sequence that cause this failure when WiFi is not available. Any workaround please?
  9. I am trying to temporarily disable the network for 5 minutes and enable it again. I am able to disable it but not able to enabled it again once disabled
  10. Thanks Igor. But I am not able to restart wlan0 even from network manager without reboot. Tried following #nmcli networking off #nmcli networking on #service networking restart #systemctl restart NetworkManager Is there some simple way to restart wlan0 so that it tries to reconnect with router with new DHCP request. Looks like there are multiple ways to switch-off wlan0 but not a single method that manage to restore it back without reboot.
  11. I tried to run dhclient -r but it didn't help either. Once nework is down by ifconfig wlan0 down Its not getting restored.
  12. Hi Experts, I am using opi zero with Armbian Ubuntu Xenial image. Wireless is working fine with DHCP but I am facing following issue. If I run ifconfig wlan0 down followed by ifconfig wlan0 up, my network connectivity is not restored. Can anyone please let me know why it is happening?
  13. Hi Herald, Thanks for h3consumption tool. I turned off HDMI cores, there was some improvement but not significant. Then I turned off other unwanted stuff along with 2 cores of out 4. The moment I turned of two cores it worked perfectly, no heating issues at all. Two cores are good enough for my application. Thank you so much for your help. To answer other queries a No, I didn't change frequencies b overlayfs is not required for serial-wifi bridge but we use it to avoid any possible corruption due to power failure. my opi zero is not running on battery and we h
  14. Hi Experts, I am using OPI zero with Ubuntu Xenial. I started with Armbian but switched over to Ubuntu in order to use overlayfs. I am facing overheating problem ad yes I need to apply heat sink etc to solve the issue however since my requirement is not processor intensive (read 48 byte data over UART every 100-200ms and send it over WiFi), I am wondering if I can reduce CPU speed in software to avoid overheating. Any help/expert advice is appreciated. Thanks in Advance.
  15. Made the progress so just to update/close this thread. It looks like some issue if the wires are connected to FTDI USB TTL and USB is plugged out from laptop. If console wires are detached altogether from OPI Zero, then it boots fine.