Questions tagged [permissions]

Permissions grant certain abilities - read, write, or execute a file - on a user level. Unset permissions result in the corresponding rights being denied. Questions address issues with permission settings.

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Operation not permitted when using sudo via homebridge

I updated homebridge yesterday and now none of my stereo commands work. I use the homebridge-commander plugin to run a set of commands that use a repo of mine called pi-bose, forked from pi-rc. It ...
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11 views

404 Not found - weewx and lighttpd

I am running Dietpi on Raspberry Pi 3B+. Installed weewx via apt-get after enabling lighttpd. I get a 404 Not found error. Apparently, I need to set some permissions to allow weewx to write to /var/...
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29 views

'on_picture_save' triggered script won't execute 'sftp' nor 'sudo -u' commands

My goal is to transfer to a distant raspberry pi the stream of snapshots acquired through 'motion' software. I am using 'sftp' in the following test script: (test-script.sh) #!/bin/bash cp $1 /tmp/...
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1answer
86 views

WS281x library cannot access /dev/mem without root

I get this error from the rpi_ws281x library when trying to run as user pi (this is a java wrapper around the library): 16:43:59.060 [main] INFO com.github.mbelling.ws281x.Ws281xLedStrip - LEDs count:...
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64 views

How to create a linux user group that grants access to USB devices?

How can I create a new user group that will grant the group members access to USB devices connected to the system? a.) to all connected USB devices? b.) only to USB devices with VID=0x1234? c.) only ...
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1answer
28 views

OpenCV can't capture frames on production server (Nginx + uWSGI) on Raspberry Pi 4

I'm building a production server on Raspberry Pi 4. Web app is written in Django. I used uWSGI as an application server and Nginx as a reverse proxy. I followed many tips from Digital Ocean. One of ...
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2answers
248 views

Block /etc/wpa_supplicant/wpa_supplicant.conf from non root users but still allow all users to connect to that ssid

How do i block /etc/wpa_supplicant/wpa_supplicant.conf from non root users but still allow all users to connect to that ssid? For example if I have a hidden network called xyz with password 1234secure....
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49 views

new pi & new hdd ext4 messes up permissions and owner on reboot

I have a new hdd powered with external power plug It is attached to the usb 3.0 (new Pi from shop also) hdd is ext4 problem: I mount the hdd on the pi, fine. then I write some files, fine. then I ...
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2answers
170 views

Which user is used to authenticate with the NFS server when mounting in fstab?

I'm trying to wrap my head around connecting my Pi2B to a NAS using NFS. In this answer, @Ingo wrote. As customary then you mount to nfs shares with entries in /etc/fstab. This line in your /etc/...
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48 views

NFS client access denied

I created a basic NFS share on my RPi4 following the RaspberryPi doc and PiMyLife tutorial. First, installed nfs-kernel sudo apt-get install nfs-kernel-server -y then, set permissions sudo chown -R ...
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111 views

pi samba share permissions

So my current project is to have a full node bitcoin core on my pi4 currently following this guide: Bitcoin node guide In this guide they reference an external hdd for the blockchain as currently the ...
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1answer
108 views

how to enable pcmanfm to copy paste in directories that say "permission denied" [closed]

I need to enable pcmanfm (aka file explorer) to copy and paste from all directories for programing purposes. Can anyone tell me how to do this?
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2answers
1k views

Error copying files permission denied | using the sudo command

I am trying to install the pipedream cli onto my pi and when I run the installer script as sudo I am getting a permission error saying it can't copy any files into /usr/local/bin/pd The error I am ...
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1answer
965 views

PermissionError: Permission denied

I have a python program that imports gopigo. If I run the program under my user it works fine. I need to invoke it from shairport-sync service. when I do that I get the following error: Jul 27 19:35:...
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1answer
38 views

When uploading from WinSCP: How to mount an external samba drive to give all users write and file rename permissions? [closed]

I have a raspberry pi behind a Fritzbox router that also doubles as a nas with a drive connected via USB. I have mounted the nas to the pi's "/media/fritzbox-usb" directory and would like ...
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393 views

How to mount (and keep) a NTFS HDD with RW permissions

I have the Raspberry Pi 4 Model B, I've installed Raspbian OS using NOOBS. Everything works fine until I plug in my NTFS HDD via USB, the hard drive is detected and mounted automatically, but with RO ...
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3answers
282 views

Configure Pi4 to create files in root of mounted Samba share

I cannot create files and directories of the root folder of a mounted Samba share on my Pi4. I am 98% certain that this is a client-side issue with the Pi4 and not a server configuration problem for ...
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1answer
307 views

Rasbian WebDav-Client davfs2: Create folder successfully, but files won't

Dear specialists :) , I got a lot of help during the last month from this forum but this time I can't find the right thread. Problem: I had connected a WebDav-Connection to the https://dav.mailbox....
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1answer
905 views

How to record to NAS from TVHeadend running on Raspberry Pi 4

Sorry if I unintentionally transgress any forum etiquette - in all my time looking for answers to questions I have been able to get there through searching and have never actually had to post a ...
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1answer
488 views

Unable to copy to SMB from MacOS

I'm in the process of setting up a shared folder on my Raspberry Pi and am having a hard time figuring out the issue with some of my permissions. I set up my smb.conf file as such: [content] Comment =...
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2k views

Unwritable file

I'm trying to edit the terminal on my Pi and whenever I edit my terminal with the command nano /boot/config.txt this comes up: nano /boot/config.txt unwritable Whenever I try to exit and try to ...
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1answer
788 views

Permission denied on executing script

I can't execute a script. I'm struggling with this. OS version and hardware model I'm on Raspbian GNU/Linux 10, Raspberry Pi 3 Model B. Devices When I call lsblk I get: $ lsblk NAME MAJ:...
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1answer
126 views

ssh Permission denied // RPi 3 Model A+ macOS Mojave

I'm trying to access my RPi 3 Model A+ from my mac (Mojave) through ssh. They're both connected to a 5GHz wifi. From the mac terminal, I type the RPi ip address, then the default password raspberry , ...
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1answer
1k views

PIGPIO without sudo

I am working on setting up an automated deployment of an executable using the PIGPIO C bindings to a Pi Zero. I copy the executable to the pi (into a directory on pi user's desktop) as expected, but ...
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3answers
7k views

Sudo permissions disaster

I just got a Pi-4. I'm not sure if I did something wrong while setting it up, but after getting it running I noticed that sudo commands required no passwords. I tried to change this, following some ...
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0answers
117 views

User does not have permissions to directory

My raspberry 3 is running amule using amule user, but I cant set the directories I want for incomings and temp files in a pendrive. Each time it goes back to the default directories. I did sudo chmod ...
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24 views

Is it possible to access an Android Phone's volume permission and control it with RaspberryPi?

I want to have a wireless network using RaspberryPi where it connects with an Android phone, accesses its volume permission and turns it down. Any inputs on how to go about this?
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1answer
6k views

Permission denied to access `/media/pi` folder

I connected a HDD to USB port, then Raspbian allow me to mount the unit. So I can access to logical drive with this path: /media/pi/PICTURES-HDD. Then I installed a DLNA server (serviio) to view the ...
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1answer
224 views

Changing ownership of root directory effects

Plugged in a the sd card of Raspberry Pi to my computer, I wanted to move files to the /root directory. Since it is owned by root user and permissions of drwx------. I had to do chown -R myuser:myuser ...
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2answers
1k views

Can't connect to RPi4 from Windows 10 (SSH,RDP, VNC, HTML)

I recently was attempting to connect to my RPi via SSH & Remote Desktop. After several failed attempts from accessing it from windows, I attempted to access it from my Android phone on the same ...
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1answer
276 views

Unable to set GPIO even as root

$ echo "1" > /sys/class/gpio/gpio17/value echo: write error: Operation not permitted Doing sudo -i to log in as root ends up the same. $ ls -ll /sys/class/gpio/gpio17/ -rwxrwx--- 1 root gpio 4096 ...
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1answer
282 views

Run forever task as root in init.d script on startup

I'm trying to start a nodeJS Server on Raspbian on startup. Everything works fine with this script: #!/bin/sh #/etc/init.d/myService ### BEGIN INIT INFO # Provides: myService # Required-...
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1answer
248 views

How can I require root privileges for invoking 'gpio' from WiringPi?

I removed my user from the gpio group, logged out and back in. I can still run e.g. gpio write 25 1. I see from this answer how the memory mapping and permissions changed between Jessie and Stretch, ...
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1answer
296 views

Unable to create/delete files/folders from external hdd enclosure

I'm trying to write files to an external hard drive in an enclosure holding 4 drives, thru usb. It won't let me do anything with the drive, saying "permission denied", and I can't format it. I've got ...
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0answers
884 views

php file not executing python script when called through browser

I have an apache2 webserver running on the pi. I have a php file that uses exec() to run a python script. Everything works well from the command line. when loaded through the browser, the exec() ...
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2answers
5k views

Permission denied using Serial

I'm using some XBee to build a mesh network and everything is working, BUT only if I run the code using sudo. Now that the code is "Finished" i want to remove this need, because i know that it isn't ...
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1answer
502 views

Allowing a venv instance of Python access to I2C

I'm trying to run a python script using the adafruit_bme280 library to read a couple of sensors and display the data on a flask-generated page. I've gotten it to work outside of a venv virtual ...
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1answer
840 views

Permission denied error when using apt and apt-get as root on raspbian

I keep getting an error when I use apt or apt-get as a root user or using sudo with the default pi account. Ign:1 http://raspbian.raspberrypi.org/raspbian stretch InRelease Ign:2 http://archive....
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1answer
17k views

Error reading lock file /etc/.rc.local.swp: Not enough data read

I was able to access rc.local just a little bit ago and now it wont let me. I cant even delete the swp file due to permission issues. Im not sure where to go from here, the error i get when opening ...
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2answers
1k views

Raspberry Pi Desktop, Guest Additions: Access denied under root

I've been trying to install Guest Additions for Raspbian Desktop on VirtualBox hosted on Linux. The script won't run even under root. How is it possible?
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1answer
98 views

Why is /boot/config.txt executable?

FYI, I installed the R-PI minimal image with dd myself onto an sd card I was messing with the boot config when I realized that this file was set as executable. Looking at the config, I don't see why ...
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0answers
92 views

Trying to configure two USB drives for Samba server, permissions allow access to one but not the other on PC?

On my raspberry pi 3 that has Samba and Ntfs-3g running Raspian I have two USB drives mounted to two folders (from lsblk) Then I have added the following code to the bottom of the samba configure ...
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0answers
106 views

Permision denied error using paho mqtt and Adafruit 32x32 led matrix

I am writing to you because I have the following problem: I have generated a code that allows controlling a 32x32 RGB led matrix through mqtt (AWS IoTCore) using a RPi Zero W with an Adafruit RGB ...
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0answers
174 views

FTP file upload through Dreamweaver

Trying to edit files over FTP in Adobe Dreamweaver 2019. I've set the permissions to 755 in /var/www/html/ using -Rfv. Now, whenever I go to save a file I am greeted with this: An FTP error occurred -...
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0answers
180 views

How to run a graphical program from a restricted user

I have two users. admin can see everything. pi is restricted. I have a tkinter python application. pi must be able to run the program, but it cannot read any of the files directly. There is a data....
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1answer
198 views

GPiO setup works from shell, but not from script or C code

May be not the right place, but ran again that on the RPi platform. I want to have - say - an output on the RPi. I'm user pi. I'm in gpio group. I say 'echo 26 > /sys/class/gpio/export'. Works. I ...
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685 views

Setting a mode to a pin requires root permissions

I’m trying to change pin mode on RPI (with Raspbian) – it works when I invoke those commands sudo chown root.gpio /dev/gpiomem sudo chmod g+rw /dev/gpiomem but after every restart I have to execute ...
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1answer
3k views

How to fix the systemd file permissions?

I have a raspberry pi python3 program "monitor.py" that works from the terminal But it fails to run when I start it from boot. Check status: pi@raspberrypi:~ $ systemctl status monitor.service ● ...
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1answer
549 views

Permission problems with Transmission

EDIT 2: User Dougie already suggested this. Didn't notice it. EDIT: I found a solution through NFS. On my Zyxel NAS326 I created a NFS share and gave right to access to it for my whole home network ...
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1answer
88 views

Stop Linux terminal running as root

I was trying to set my GUI working on autorun boot through several methods (system, LXDE etc) but I think I screwed it up as none of them worked really. I must have mixed some commands up. Right now,...