Questions tagged [linux]
A family of Unix-like operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.
59,716 questions
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Can dual WLANs and bonding prevent AP Switching drops on Raspberry Pi?
I’m using a Raspberry Pi running DonkeyCar, operating on public Wi-Fi with multiple APs. When the Pi moves between APs, the connection drops briefly, disrupting real-time video feed, control and ...
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Script scheduled by cron task and its terminal execution have different result
I have script looks like:
#!/bin/bash
# get cookies
/usr/bin/curl -L -s -c /tmp/cookie.cook -b /tmp/cookie.cook --data "auth_data" https://address.com/auth/ -o /tmp/page.tmp
LOGGED=`grep -c ...
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Rogue camera feed from unknown dev on my network [closed]
Have rogue device accessing my network using a port and then in timed succession switching to different one to snap clips of video from unknown source & cant seem to track it or catch a packet to ...
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38
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Can you fake Steam app/game running, like in Steam Achievement Manager?
I have the modded game that I play and want Steam to track hours for it and count it towards Steam version of the game. Also, friends should see I'm playing it.
I know I can add non-Steam game to ...
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12
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Why can I not install packages on all of my containers?
I'm running Pop!_OS 22.04. When I spin up a Debian container, I have no trouble. For other distros, I get errors preventing me from installing packages. For example, for an Arch Linux container
host $ ...
0
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0
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18
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ddrescue not even printing to terminal doing anything?
I'm trying to recover data from a hard-drive (unmounted but located at /dev/sdc according to lsblk), that worked flawlessly until last week, by using ddrescue. It's been a couple of years since I last ...
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9
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Linux kernel cgroup v2 CFS - CPU throttled_usec accounting?
In Linux kernel cgroup v2’s CFS scheduler, how is cpu.stat throttled_usec accounted when a cgroup with multiple threads gets throttled during a single quota period?
Specifically, is throttled_usec ...
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16
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How to prevent specific keys (like media control keys) from waking monitors on Linux?
Often, I'll have my computer on while doing something offline-y at my desk. The computer plays some music and maybe once in a while I actually use the computer. While doing whatever, the computer ...
- 1,793
0
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1
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37
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Why are modern Linux systems on SSDs unable to switch motherboards without corrupting the EFI partition?
Older systems on a SATADOM, you can switch them out of any motherboard and into any motherboard, and they will boot no matter what.
Try a WD Blue SSD with Debian bookworm installed, and every single ...
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33
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Making sense of `ss -s`
I am trying to understand the output of ss -s:
Total: 1106
TCP: 44 (estab 34, closed 6, orphaned 0, timewait 4)
Transport Total IP IPv6
RAW 0 0 0
UDP ...
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4
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1
answer
124
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How do I merge two zfs pools to have the same password prompt
I have created two ZFS pools, one for my files and one for the OS. When setting them up, I set both to be encrypted. I think the OS one was created by the Ubuntu installer. The one for my files I ...
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1
answer
30
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How to Stop Cross-User Authentication Prompts for radxa and rock Users When Logged in as Another User on Debian 12
I am using a Rock Pi S running Debian 12 and have created a new user named guest. While logged in as guest, when I execute commands like systemctl stop <service_name>, I am prompted to ...
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13
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How to build old qla2xxx driver from Kernel 4.10.17 on Debian 12 with Kernel 6.1?
I'm running an old Intel Atom Mainboard "D945GCLF2" with an integrated Intel Atom 330. I installed Debian 12 (minimal; CLI only) on it and it runs fine so far.
I now actually want to use ...
- 269
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Is it viable to self host and run windows on the same machine? [closed]
I’ve recently started reading about self hosting and would like to give it a go. I have a pretty solid system for Windows, more power than I need and I was wondering if I could use my machine to pull ...
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1
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72
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Why is my Sony TV is sending UDP packets to my firewall? [closed]
I've noticed that the Sony Bravia TV is sending UDP packets to my IP and they are blocked by UFW (firewall):
Jan 09 16:56:09 my_host kernel: [UFW BLOCK] IN=wlp58s0 OUT= MAC=4c:1d:96:8b:8a:44:e8:6f:38:...
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13
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Expanding local subdomains with dnsmasq
I'm trying to configure dnsmasq as a local nameserver for my LAN. I'd like to structure my network into subdomains based on rooms in my home. My example dnsmasq config is here:
# options
no-resolv
...
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0
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0
answers
21
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Pipewire stops working after few minutes
My system is a Linux MX-23.4, sound system is Pipewire and I use a USB audio interface (a Focusrite Scarlett 18i20).
I have been having the following problem for a few weeks:
after turning on the pc ...
- 43
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0
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14
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Why do app icons get very large when system display scaling is increased with Albert?
OS: Ubuntu 24.04.1 LTS
Display Resolution: 2240 x 1400
Display Scaling: 150%
Qt Version: 6.4.2
Platform: xcb
Albert version: 0.26.11
The app icons get too big when I increase the display scaling to ...
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21
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+50
Sound differences on Alienware m18 R2 using Arch and Mint
I got an Alienware m18 R2 and put Arch on it. To my surprise the sound was not working out of the box. I got a Mint live USB flash drive and booted with it. To my surprise the sound was working fine ...
- 312
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14
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qemu VM super-slow if host is running heavy CUDA processes
TL;DR My host is used for both long running (days & weeks) Machine Learning jobs (using CUDA) and for running short-lived (minutes) Virtual Machines.
If the ML jobs are stressing the host, the VMs ...
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2
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1
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185
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Is it possible to use a Samba share used for macOS Time Machine backups and Finder File copying
I want to use a Samba share for macOS Time Machine backups, and also for file sharing (copy files using Finder).
Is this possible, and if so how do I fix the errors I am encountering?
I am able to ...
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34
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Why do I get no video at all when second monitor connected via HDMI port on an Acer Aspire 6930 running Mint 21.3?
I'm using Mint 21.3. As the title suggests, I'm trying to use a second monitor via the HDMI port on Acer Aspire 6930. When I plug the second monitor into the port, nothing comes up on the second ...
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0
answers
22
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How do I send and receive mail through a WireGuard tunnel?
I'm in process of setting up an email server but my ISP blocks port 25.
I have a VPS with WireGuard setup.
I have been doing some basic testing by running a web server over the tunnel.
I can access ...
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1
answer
26
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Why does email monitoring via msmtp (for a mdadm RAID) work via user but fails when run through sudo?
I just set up a RAID 1 array using mdadm on Debian. I am trying to enable mdadm email monitoring using msmtp. I am following the msmtp documentation (https://marlam.de/msmtp/msmtp.html#Examples) and ...
0
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1
answer
31
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How to write a file in /tmp that other users can delete?
I have an application (a Python program) running in a Linux environment that's writing a file to /tmp, with the expectation that the app will later delete the file on a subsequent execution. The ...
0
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0
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32
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How to fix bootloader using GRUB rescue after getting unknown file-system error?
I'm currently using an Oracle VirtualBox to run Ubuntu on my PC. Firstly I was trying to recover some files I mistakenly deleted in my terminal using exundelete tool. Did some research and part of the ...
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Uploading .uf2 project files tp EV3 Lego brick via USB cable on Linux (Debian/Ubuntu)
To start with, I know I can user ev3dev but as this is for my son, he want's to use code blocks and I'm struggling to get it all working as expected...
Initially there was an problem with ev3 not ...
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0
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1
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31
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Why am I getting a "no such file or directory" error while trying to an FFmpeg audio recording?
I am on Arch Linux and attempting to record audio as it plays on my computer using ffmpeg and store it as a .flac file. I invoke the following command:
ffmpeg -f pulse -i default -c:a flac -...
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1
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1
answer
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How to add Authentication Providers in Phorge/Phabricator?
I just installed Phorge (formerly known as Phabricator). https://we.phorge.it/book/phorge/article/configuring_accounts_and_registration/ states "By default, no providers are enabled. You must use ...
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2
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722
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Ghostty terminal - how do I show an image?
I'm using the new Ghostty terminal on macOS and Linux - it is multiplatform (Windows will come later) and is comparable to kitty or WezTerm.
My understanding is that it aims to support the same kind ...
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2
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213
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NFTables Doesn't Route Packets To Another Address
I am very new to this, so, sorry if I misquote something. I have a Debian 12 laptop, which has 1 Ethernet NIC (eth3) by itself and 1 USB Ethernet NIC (ethx) I bought. I connect the system as shown ...
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What does Linux MAC LSMs do that DAC doesn't do?
After reading this wikipedia article on Sensitive Compartmentalized Information I now think I understand that SElinux can and is used to keep users from accidentally sharing "Sensitive ...
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How to ping from one interface to the other on Linux?
I've been stuck on this for an unbelievable amount of time.
Say I have two interfaces, eth0 and eth1, one with the address 192.168.50.2/24 and the other with the address 192.168.50.3/24. Then, I ...
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0
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16
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Having MBR and FileSystem issues when running “dist-update” from 22.10 to 24.04 Ubuntu server?
Since I've done the dist-update of one Ubuntu Server machine running LTS 22.10 I'm facing many FileSystem and Boot issues.
After the first update the filesystem was completely messed up and I needed ...
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2
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0
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46
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Why does my WD My Passport not read, write, or half the time, it doesn't even sense the drive?
WD My Passport won't read, write, or half the time, it doesn't even sense the drive.
It does makes noises like when a drive is about to go out (only had it since 2020, only used once), but where my ...
3
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3
answers
161
views
How to print between " " value from XML file?
I'm using the following command combination to print value from an XML file to another file:
grep -Po '<add key="WorkstationID" value="\K[^"]+' web.config.txt | awk '{print &...
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31
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How to use GNU Stow to symlink complex folder structure
I am trying to create a dotfile switching system. With a simple command I can switch the entire machine configuration, for example:
$ stow -D dotfiles1
$ stow dotfiles2
$ stow -D dotfiles2
$ stow ...
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ProFTPD fails to start with PID file error after manual installation from source
I have been trying to install and configure ProFTPd 1.3.8c on CentOS 7, but when I try to start the service, it fails.
Installation and Configuration Process:
Here's a summary of my installation and ...
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I am trying to install PyAudio but it is not working out as expected?
I wanted to make this so it does audible reminders of my appointments.
Say I am in the kitchen, it reminds me where I need to be while working in a shop or in a kitchen. Then would possibly do a PA ...
8
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2
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696
views
Can I login into sddm as some user, not knowing their password, if I have sudo/root privileges?
I can unlock any user's graphical session without knowing their password if I'm root, just using loginctl unlock-session <session>.
But can I start a graphical session as a user somehow, not ...
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28
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How to use WinRAR for Linux to verify rar archive files and print errors
I am using rar (WinRAR for linux).
How can I verify each rar file in a directory and print potential corruption errors to a log file?
I tried using -ilog[name] but rar does not even make a log file ...
- 1,525
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37
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How can I set up my bootloader to failover to other OSes if the prior option fails?
I'm facing an issue while setting up my system to boot multiple operating systems from a single SSD. I want to boot it from booting order if one fails then it should boot with second boot and that ...
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24
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Arch linux apps crashing instantly [closed]
apps such as vscode or steam crash right after launch without fail although firefox works fine, I have updated my system and still run into this issue
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FIO reports higher 4K random write IOPS than what is possible by the SSD
I am trying to benchmark my SSD, Micron 7450 Pro using FIO.
I have preconditioned the drive using FIO sequential write twice and then ran the random write benchmark.
sudo fio --name=seq_write --...
0
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0
answers
25
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Why does sudo -i -u fail to pick up the correct home directory?
On a fresh vast.ai instance configured with their pytorch template, I am trying to figure out why I can't create properly configured users. After doing useradd --shell /usr/bin/bash -m jason, the ...
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1
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34
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OpenSSH doesn't automatically adds a key to authorized_keys, outputs "Permission denied" instead
I have been trying to establish an SSH connection between my PC and a Raspberry Pi 4B with Ubuntu on it, which led only to
Permission denied (publickey)
Only when I created my client's puplic key ...
1
vote
2
answers
29
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How do I detect that Btrfs has finished reclaiming free space in the background?
After one deletes files or subvolumes on a Btrfs filesystem, this space is not immediately reclaimed. However, with watch btrfs f u <dir>, one can see live how the free space is slowly going up....
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1
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293
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How do I get the GitHub Wi-Fi driver for the MediaTek MT7902 card working in Linux?
As there is no Linux driver for the MediaTek MT7902 Wi-Fi card, I am currently using a USB adapter (TP-Link AC600 wireless Archer T2U Nano) which works well with the rtl8821au module. I'd like to get ...
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2
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1
answer
85
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Does interface-specific ipv6 forwarding config have any effect?
I have 2 interfaces: eth0 and tap0 and have the following network:
host1 <-- eth0 --> router <-- tap0 --> host2
I send the following packet:
IPv6(dst="host2's tap0 address", srs=...
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0
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app running in wine fails to capture keyboard inputs in virtual desktop
This is something that used to work when enabling the settings "automatically capture the mouse in full-screen windows" and "emulate a virtual desktop" but now it no longer ...
