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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52 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
37 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
41 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
53 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
30 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
35 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() ...
1
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2answers
358 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 ...
1
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1answer
102 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 ...
0
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1answer
115 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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0answers
33 views

Adding an exception to /etc/sudoers

In the /etc/sudoers file I want to add an exception for raspi-config to the following: pi ALL=(ALL) NOPASSWD: ALL This will allow users to use all commands without sudo except for raspi-config. ...
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1answer
2k 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
196 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
57 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
40 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
56 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
60 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
88 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
92 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 ...
0
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1answer
180 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
602 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
260 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
48 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,...
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1answer
40 views

Can't access mounted HDD if I have't logged into Raspbian/Pixel Desktop first

Well, I'm a bit confused, so please, bear with me: I have a Pi3 with Raspbian (huh, the latest one, can't remember the name) and an external HDD plugged to it. I've been doing tests and reading stuff,...
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1answer
668 views

Why won't my systemd execute?

I get this error message when I try to run systemd: Failed to create /user.slice/user-1000.slice/session-c2.scope/init.scope control group: Permission denied Failed to allocate manager object: ...
2
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1answer
132 views

What's wrong with this wpa_suppplicant.conf file?

I have an original wpa_supplicant.conf file which I tried to add a new network. Both have same owner (root) and same permissions 644. I just added one more network at the end (just for testing). ...
1
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3answers
195 views

/boot/wpa_config being copied with wrong permission

I plug the micro SD into my MacBook. I then save a correct /Volumes/boot/wpa_supplicant.conf with file permissions with 777 (default when creating files into the FAT partition). Then, when I move back ...
1
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4answers
46 views

Trying to write to a file from a script. Hitting unexpected permission issues

I am trying to write a script to edit systemd files. On the CLI I can use the command: sudo systemctl edit test.service That opens a text editor, I make the changes and save no problems. In a bash ...
0
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1answer
57 views

Trouble with changing owner group of a windows shared folder from root to pi

I have mounted a windows shared folder to a raspberry pi directory using sudo mount.cifs ip_address_windows_machine/folderpath /home/pi/shared_folder -o user=MY_USERNAME,password=MY_PASSWORD The ...
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2answers
2k views

Python pigpio 'no permission to update GPIO'

I am trying to run the following code on my Raspberry: import pigpio import fileinput pi = pigpio.pi() ### Define constants pwm_range = 255 pwm_clock_div = 8 left_motor_dir_pin = 35 ...
0
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1answer
211 views

WARNING: Can't Create a List File '/var/www/html/file_here.xml.tmp': Permission denied

land@ns331252:/var/www/html$ ls -al total 24 drwxr-xr-x 2 root root 4096 Aug 5 02:39 . drwxrwxrwx 7 root root 4096 Aug 6 07:27 .. -rwxrwxrwx 1 land land 8839 Aug 5 02:39 file.here.txt -rwxrwxrwx 1 ...
2
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0answers
455 views

Permission Denied as root when connecting BluetoothSocket with Bluez 5.43

I've been trying to get bluetooth working on my Raspberry Pi 1 Model B+ running Raspbian Stretch Lite 4.14 with a 3rd party USB bluetooth dongle. I installed Bluez 5.43 for python 2.7, and was able ...
0
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3answers
84 views

Apache permissions on local network [closed]

I'm playing around with some automation for my home and have setup Apache and MySQL on my Pi along with a basic web page to control some pins on the Pi. I am wanting to set permissions on the whole /...
1
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3answers
439 views

Error on changing permissions in serial port

I have been trying to find a solution for 2 days but I wasn't able to find one. I want to change the permission of the /dev/ttyAMA0 but seems to be impossible. I tried with sudo chmod 777 /deb/ttyAMA0 ...
2
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0answers
238 views

Pi 3 error on motion status ffmpeg_set_outputfile: permission denied

I have a Pi 3 with Stretch on it and I'm trying to get Motion to work correctly. In particular I want it to stream to a browser that I'll be able to access. I was able to successfully get the stream ...
1
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0answers
255 views

pyusb: scanner insufficient permissions

UPDATE: I added a symbolic link to my .rules file and it is being created every time I unplug/plug the scanner. I believe my issue is more of a permissions issue with my Python code and more ...
0
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1answer
43 views

How can I give write permission to “/mnt/pidrive1” path?

I have connected an USB drive with my Raspberry Pi following this tutorial. Everything worked fine but I'm not able to rename, delete or move/copy any files to a folder using SFTP. I'm only able to ...
0
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1answer
501 views

How to exit read only filesystem to get write permission in order to download a driver form Github?

I am trying to set up a 5 inch LCD on my Raspberry Pi 3. It runs Kali Linux, I'm on a no GUI boot and (automatically) logged in as root. When I run the command (to download the drivers): git clone ...
0
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1answer
658 views

Copying files to usr/local in Raspbian

I have been trying to install Opencv following the instructions given in this link [https://github.com/manashmndl/FabLabRpiWorkshop2017/wiki/Painless-OpenCV-in-Raspbian-Stretch] I need to copy files ...
0
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0answers
480 views

Need help giving Plex media server permission to access external NTFS drive from raspberry pi 3

I am running the Plex media server on my raspberry pi 3 (Raspbian Jessie). My media is mounted on the RPI3 from an external NTFS drive. I'm accessing my Plex media server from my laptop remotely. ...
1
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1answer
1k views

Transmission daemon stopped working - owner or permission issue?

Suddenly I'm having issues starting downloads. I'm using : sudo service transmission-daemon (start/stop/restart) I looked at /var/log/daemon.log and found an error: Couldn't save temporary file "/...
3
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2answers
424 views

Issue with multi-user NAS setup

I want to build a NAS server with multiple users. To test this I created 2 users, pi and pi2. The external drive is mounted in /media/pi. Here is the ls -al output: drwxrwx--x 4 pi nasusers 4096 ...
0
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1answer
97 views

i2c Permament ownership setting

I set up an apache2 server on my RPi zero and written cgi script that reads temperature from database and prints it onto a website. To update data in the database, I have a small python script which ...
0
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1answer
917 views

Repairing Sudoers.so file permissions

I was messing around with permissions on my pi today and I managed to accidentally change the permissions on /usr/lib/sudo/sudoers.so to anyone can view anyone can write and nobody can execute. After ...
2
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1answer
84 views

Bas rights on a folder when I automount an hard drive

I want to automount an hard drive when my raspberry pi zero starts. The commands works but I can't write in the folder because I don't have permission even if I use sudo. I can only read. I already ...
1
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2answers
188 views

Getting Pure Data to work on Raspbian Jessie (giving Pure Data permission to access device?)

I’m new to Raspberry Pi and am trying to run Pure Data on it to control a teensy 3.2 using Open Sound Control which in turn controls some stepper motors for a pump just like here https://github.com/...
0
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2answers
105 views

How to find out if you are the Administrator [closed]

I am running a Raspberry Pi 3 Model B and I am trying to find out what my administrative privileges are. When I start up the pi I have started it in the standard mode after boot. I have not changed ...
1
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1answer
663 views

Restoring a Raspbian system with an rsync ssh backup: permissions at backup time

I have a Raspberry Pi 2 running Raspbian Jessie. It is being used as a reverse proxy for my various self-hosted services, it is running openHAB, it is my mosquitto server, etc. I would like to create ...
0
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0answers
1k views

Python module subprocess not working with Django running server via Apache

I am working on a home automation project, and I want to run certain python codes when going to certain URLs of my Django Webpage. The subprocess.call() line from my Django Views.py works perfectly on ...
0
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1answer
52 views

User unable to add/remove programs through package manager

I added a user to my Pi and thought I set him up like the original pi user. I added him using adduser -a -G and assigned him all the groups assigned to pi through usermod. He seems to be able to do ...
0
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1answer
519 views

From “SSH: Permission denied, please try again” to realizing my RPi is running a non-ending process

I am pretty new in this, and I am working on a home automation project where my Pi should be accessed from the outside world and some slave Arduinos should perform tasks like monitoring the ...