Questions tagged [raspbian-stretch]

Raspbian-Stretch is a GNU/Linux operating system derived from Debian 9, initially released in August 2017. Raspbian is the most widely used Pi based distribution and the one recommended by the Raspberry Pi Foundation, who distribute their own images of it in 3 flavours, a full version with Desktop GUI and recommended software, Desktop GUI, and a "lite" version without any GUI pre-installed.

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1answer
162 views

Flatpak - error: unknown command search

I am trying to learn how to use flatpak on mu Pi 3. However when I type flatpak search libreofficeall I get is error: unkknown command 'search' I've followed the following steps: sudo apt install ...
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1answer
535 views

Network Manager Gnome Wifi sharing not portable

I set this up succesffully using the network-manager-gnome gui to share the wifi to the ethernet (with DCHP) and it seems to work well on my Pi - I can connect and access the WAN when I have a Wifi ...
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1answer
561 views

Using crontab with flock to lock a script while it is running

I'm trying to automatically run a script once every minute. But it might take more than 1 minutes sometimes & hence I have to have a lock on the script while it is running so that only one ...
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0answers
147 views

Apt forces me to install Lightdm with Xfce4

I am trying to install Xfce4 on my Pi (Raspbian Stretch lite). When I perfom sudo apt install xfc4 one of the packages that wants to install is lightdm. After checking the dependencies of Xfce4 ...
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218 views

raspberrypi3 bluetooth socket problem

I have write program for raspberrypi3 bluetooth communication with hc05 ,but most of the time I am getting error bluetooth.btcommon.BluetoothError: (110, 'Connection timed out') how can I solve ...
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2answers
132 views

Is there any way to extract files from damaged backup.img file?

I have a raspberry pi backup.img file that I was trying to extract some of its inside files, I used different softwares to do that but all failed. I used Winzip but I got a message sys that this file ...
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3answers
2k views

Raspbian support for TLS 1.3

Are there or will there be packages available to support TLS 1.3 on Raspbian GNU/Linux 9 (stretch)? For example OpenSSL 1.1.1{,a,b}?
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677 views

Raspberry pi ntp client fails to sync on network master clock

I have a pi3B+ with stretch. I am trying to sync its clock using a network master clock (a pc set as ntp server) through direct ethernet connection. I can't see my server synching the pi. I followed ...
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1answer
521 views

PIServer client autologin

I've got a Raspberry PI 3B+ configured to diskless boot with the PIServer PXE system. I have created a user 'map7' and would like it to autologin my thin clients into the GUI as that user. I've ...
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0answers
409 views

Regarding ttyS0 and ttyAMA0 of Raspberrypi b+

Is it possible to communicate at the same time with raspberry UART(ttyS0) port Rx and Tx and ttyAMA0 (inbuilt Bluetooth) Communication? In my current project, I am doing the serial communication of ...
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204 views

console text written over plymouth splash screen

I have two RPi3s with Raspbian Stretch - one with RS Full and one with RS Lite. I have enabled autologin and our custom plymouth splash screen with "splash quiet" in /boot/cmdline.txt. Now I want to ...
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1answer
544 views

Problem: Tor Router with a Wifi to Ethernet Bridge

I configured my Raspberry Pi 3 Model B to route all traffic from wlan0 to eth0. This works for me and I can connect my RPI to a Wifi-Network, connect my computer with the RPI through ethernet and I ...
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1answer
735 views

Software control backlight of a 3.5 inch display

I'm using a 3.5 inch SPI screen on a Raspberry PI3. I would like to know how is it possible to control the backlight value with a shell command. I try to use the command echo %s > /sys/class/...
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1answer
282 views

How can I diagnose a headless Raspberry Pi Zero W that hangs?

I'm trying to run my Pi Zero W as a motion detecting camera using RPI cam web interface but it keeps hanging after a few hours at most. Before it hangs, it can record motion detect videos and upload ...
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30 views

Accidentally clicked on “Expulse SD card” on RPI3

I accidentally clicked on "Expulse SD card" on RPI3 now I don´t have any image I can access Terminal with an SSH but if I try to connect it to my TV with an HDMI or with a remote desktop I don´t get ...
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2answers
257 views

Adduser command missing

I use rkhunter on all of my RPis, since some are used as dedicated servers, to try and ensure no rootkits or other malware are installed on them. When I did the check as usual today, I got the ...
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0answers
476 views

hcitool does not find devices despite GUI showing multiple

I'm trying to better understand C (and bluetooth) using a Raspberry Pi 3 b+ as the testing grounds. I started by writing a C program that uses BlueZ to scan for bluetooth devices (script pretty common ...
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1answer
369 views

How to remove `raspi-copies-and-fills` from Raspbian

I did apt update && apt upgrade as root and now my Raspbian system is corrupt and won't boot anymore. After some debugging I noticed there's the package raspi-copies-and-fills. Fortunately, ...
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1answer
386 views

Raspberry SSH works on Linux but access denied on Windows 10

I can login with ssh my_username@192.168.0.5 when I use Ubuntu 16.04. However using Windows 10, it says PuTTY: Network error: Permission denied. Windows Power Shell: > ssh my_username@192....
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0answers
56 views

Failing using startx to launch different desktops

I am trying to use startx to launch different desktops according to an argument using case...esac This is my .xinitrc mate(){ (sleep 5 && conky) & mate-session } case $1 in ...
2
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1answer
46 views

Limit to number of videos that can be selected via buttons in kiosk?

I'll try to make this brief initially, in hopes that someone knows off the bat that there is some limit in omxplayer that I'm hitting. If not, I can post the code and more details about what I've ...
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0answers
128 views

SIP video call Performance issue

I'm facing performance issue during video call made between RaspberryPI3 and Laptop, the video image from RaspberryPI3 are not running smooth and the overall CPU usage consumes more than 80%. Here ...
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2answers
481 views

timedatectl set-timezone Access denied

I get error when trying to set time: $ sudo timedatectl set-timezone America/New_York Failed to set time zone: Access denied This is on an almost pristine stretch lite image. I noticed $ ...
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2answers
60 views

How to run program automatically after booting Raspberry pi on stretch

I have written a program for wireless communication between raspberry pi and Arduin0 with Hc05. But how to run this program automatically after booting pi? every time I have to login pi and run the ...
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1answer
150 views

{ [Error: , Remote I/O error] errno: 121, code: '', syscall: 'writeByte' } from raspberry pi to Azure

I tried to follow the instruction below to send sensor data from my raspberry pi 2 to Azure. Connect Raspberry Pi to Azure IoT Hub (Node.js) I connected the sensors to my pi device in a different ...
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1answer
32 views

regarding system used uart port of raspberrypi3 b+

I want to do a serial communication Raspberrypi and voice recognition module v3, and for that I have to disable the system used UART port raspberrypi3. After disabling the raspberrypi3 b+ system used ...
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1answer
385 views

Does 'xdotool' only work on OS with gui?

I have installed xdotool on my raspbian stretch with desktop and on there, everything works fine. But I also tried to install xdotool on raspbian stretch lite and on lite I always encounter the ...
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1answer
5k views

Access point as WiFi router/repeater with additional WiFi-dongle

There are some tutorials to make an access point a WiFi repeater using only the on-board WiFi chip of a Raspberry Pi. But I want to use an additional USB/WiFi dongle as second interface for the up-...
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2answers
2k views

Raspberry Pi to configure automatically as an Access Point OR WiFi client

There are many guides for setting up a Raspberry Pi as an Access Point, and even some which allow switching between Access Point and WiFi client. I wanted a setting which would work as a normal WiFi ...
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1answer
216 views

CPU/RAM monitoring of one process

I know close questions have been asked, but I did not find any answer to this. I would like to monitor CPU and RAM of a process I launch, which is executed through several threads. I would like the ...
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2answers
305 views

Netboot PXE and usage extremly slow

I tried to use the netboot feature of the RPi3 and booted via network. Therefore I used dnsmasq of pihole, tftpd-hpa and NFS on another Rpi3. I want to use the RPi headless. The Boot takes up to ...
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1answer
2k views

Unable to Reconnect WiFi on Pi 3 after Connection Drop

Question What is the current proper way to force reconnection to a WiFi access point? (Or even better: automatically reconnect after the connection is dropped?) The only way to reconnect that has ...
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1answer
185 views

alternatives.tar.0 file fills /var/backups daily using all available space on Debian

On Raspbian stretch, every day at 6:30 am, an alternatives.tar.0 file is created in the /var/backups folder, leaving 0% free space. So far, I have not been able to figure out what is doing this or why....
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2answers
1k views

cron not executing python3

I am running Raspbian Stretch and have a python 3 script that executes correctly when I am in the relevant directory and input it in the command line as: sudo python3 Example.py The shebang #! line ...
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1answer
225 views

How do I start and stop the on board wireless access point?

I would like to have my wireless access point available at particular periods of the day and not at others. I have a RPi3+ running default Raspbian and followed https://www.raspberrypi.org/...
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1answer
298 views

Running a persistent node js server on boot and keeping the command line open

I know there are a lot of answers to this question but none have worked for me and I've been at it for something like six hours... Most of the answers also look like they are years out of date. I am ...
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1answer
603 views

Using my Apache2 www folder on a USB drive: PERMISSION DENIED

My Raspian Apache2 does not seem to like the www folder on a RAspberry-3B USB drive, which I can easily access from my Windows network. It keeps giving me You don't have permission to access / on this ...
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1answer
122 views

Raspbian Stretch install imapclient to Python 3.5.3

Why I need it: I've run into an issue where I first wrote a python script using imapclient to check my gmail using Python 2.7. Then continuing the path to full automation I made another script which ...
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1answer
154 views

Raspberry Pi will not boot using a custom image

I am trying to make a custom Raspberry Pi image, using the following program https://github.com/RPi-Distro/pi-gen. I am using Debian 9 Lite release as a base. A little brief, this program goes ...
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2answers
1k views

Can't login into VNC viewer

I recently setup VNC Viewer both on my Pi (3b+) and my laptop (Ubuntu 16.04 LTS). Using Stretch Lite. Installed lightdm. Using RealVNC. Followed the guide on raspberrypi.org After I connect to the Pi ...
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0answers
107 views

PiCamera python : buff/cache memory keeps increasing

I need to take a picture in each second in an infinite loop. I've wrote 2 different python scripts: one with camera.capture() and another with camera.capture_continuous() In both cases, I see the ...
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0answers
183 views

Self-walking robot with Raspberry Pi Cam object detection

I am now trying to make a self-walking robot with Raspberry Pi and Raspberry Pi camera. But i am now facing several difficulties and wish to gain insight from here, My final goal: An robot able to ...
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0answers
231 views

SONY TV as Display / Monitor

Background: I have successfully used pi-3b+ to display on LG LED TV, New model Sony 4K LED TV. Requesting your support: The year 2011 SONY 40NX710 model is showing blank (No desktop / text-console). ...
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1answer
2k views

raspberry pi application menu icon restore?

accidentally deleted the red rasberry app menu icon from toolbar. I purchased a new SD preloaded and it automatically updated to latest rasbian and while trying to restore default monitor settings ...
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0answers
115 views

raspistill quality issues: single photos vs timelapse

For some reason there seems to be a huge jump in quality when using the -tl switch for a timelapse over individual pictures. raspistill -t 1 -o /mnt/usb128/photos/test%016d.jpg -ex auto -awb auto --...
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3answers
623 views

Crontab suddenly doesn't start jobs

I'm suddenly having crontab issues, I didn't do anything other than change the script names and then change them in crontab as well so they all natch, the scripts work if I start them manually, so i'm ...
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1answer
194 views

Strange performance problems

I've been trying out a raspi 3 as a desktop recently, and have run into strange performance problems, particularly when using chrome. setup: raspberry pi 3 running raspbian stretch 2.5A power supply ...
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1answer
144 views

Upon starting Node-RED my Pi detects all of its i2c addresses as connected

I've been trying to connect an MPU-9250 module to my raspberry pi B+ in order to output the sensor's data through a Node-RED UI, i followed this tutorial to setup the MP-9250: https://kingtidesailing....
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1answer
576 views

wine: cannot find L C:\\windows\\system32\\msl.exe

I want to run MSLPU39_Cloud_Ultrasound_Diagnostic_System_Version_1.2.exe software on raspberry pi 3 Model Vi.2. (This pi has Quad Core 1.2GHz Broadcom BCM2837 64bit CPU.) This is a windows based x64 ...
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1answer
307 views

raspistill timelapse stops producing output

So I'm trying to run a timelapse for 24-36 (or until storage space is full) but raspistill seems to stop producing output after anywhere from 50-300 stills. raspistill -t 129600000 -tl 5000 -o tlapse%...

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