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Questions tagged [troubleshooting]

Troubleshooting is a form of problem solving, often applied to repair failed products or processes.

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How do deal with kubeadm init failing with rpc error: code = Unknown desc = malformed header: missing HTTP content-type?

Upon running this: kubeadm init --pod-network-cidr=10.244.0.0/16 --cri-socket=unix:///run/containerd/containerd.sock --v=5 I get the following error: [kubelet-finalize] Updating "/etc/kubernetes/...
AttributedTensorField's user avatar
1 vote
0 answers
189 views

Fedora 40 crash when booting

When I tried to boot Fedora, it stuck at here. I've waited for about 5 minutes . It only takes me 10 seconds to boot it in the past. What happend and how can I fix it?
Gordon Zhang's user avatar
-1 votes
1 answer
58 views

What is the scope of /var/log/user.log file?

/var/log/user.log What's the scope of this log file? Is it related only to currently logged in user or to multiple users and which ones? What this log file is about and when should I look into it?
metablaster's user avatar
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0 answers
192 views

bluetooth stopped working on CachyOS

I've always had problems with the Bluetooth in this distro , it ended up being half-assed by un mounting and re mounting btusb using modprobe. After that i could use it for a mouse. It wasn't perfect ...
cybercancun's user avatar
0 votes
1 answer
225 views

blank screen after ipv6.disable=1 removal from grub cmdline

I want to re-enable IPv6 on my system which is currently disabled in GRUB directly. But if I remove ipv6.disable=1, I then get a blank (backlit) screen. It took me tonight to figure out that I have a ...
Vlastimil Burián's user avatar
0 votes
1 answer
46 views

ansible-doc getting started?

Is there a vimtutor eqvivalent to ansible? I know I can read up on the syntax of a particular module using ansible-doc <module> - but what if I can't recall the module name? If I find myself ...
azzid's user avatar
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0 answers
139 views

Error code 2 from 'deb.debian.org' in apt update while GUI broken after Debian 12 extremely slow after upgrade from 11 to 12

I upgraded my Debian 11 to 12, after which Debian became extremely slow. I started to remove packages, but got GUI broken after running this (I did by accident Home Assistant installation on my Debian ...
Léo Léopold Hertz 준영's user avatar
0 votes
1 answer
184 views

In a shell script, how do I print the input of every step of a pipe chain?

TL;DR: Is there a way to print the inputs and outputs of every step of a bash shell script, including the steps between pipe commands? Hopefully this is relatable: I wrote a script a while ago and ...
Daniel Kaplan's user avatar
1 vote
1 answer
150 views

Why would curl fail to resolve a URL when drill can?

I am trying to configure my computer to resolve some domains using a local DNS server. The DNS server is at 192.168.1.123, and is itself able to resolve everything normally. On other computers, I ...
Bagalaw's user avatar
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0 answers
259 views

How to troubleshoot DisplayPort over USB Type C?

I have a DisplayPort 1.4 (HBR2) monitor and a laptop with a Type C port capable of DisplayPort 1.4 as well. Everything works fine most of the time, however, occasionally, after I reconnect the laptop ...
kirelagin's user avatar
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How do I fix Caps lock / Printscreen keys also lowering brightness

I've been having this issue lately where whenever I hit Caps Lock or Print Screen, it works normally but also acts like I hit the lower brightness key. This only happens with these keys specifically, ...
Eneyx's user avatar
  • 11
2 votes
2 answers
28k views

Resolving Dual-Boot Issue: Windows Not Showing in GRUB Menu

I recently encountered a dual-boot issue on my Debian 12 system where Windows 10 was not showing up in the GRUB menu after a Debian update. I spent some time troubleshooting the problem and was able ...
Adnan Amara's user avatar
0 votes
1 answer
178 views

Wifi is not showing on PureOS?

Hello the option to connect to Wifi is not shown on the PureOS settings? Which firmware should I install ? Distro ID: PureOS Descrip: PureOS 10 Byzantium Releases: 10
Apoliticalboy's user avatar
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22 views

How can I troubleshoot OS sluggishness?

I have a Dell G5 5590 (more specs listed below) which originally had Windows (10, I believe) installed on it. I have tried to install multiple versions of linux OS (one at a time - no dual boot at all)...
PhasedAndConfused's user avatar
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0 answers
191 views

Pop Os taking long time to boot and start certain programs

I apologize that this question has been asked before. I looked at the answers on those questions but am still struggling. I have recently switched to Linux after using Windows for decades. I've been ...
MasterOblivious's user avatar
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0 answers
45 views

audio quality issue on fedora linux: triggered randomly or by unplugging charger during wine games

So after a recent fedora update (the ones that require a reboot) lutris wine games have been acting up lately, audio suddenly becomes 8-bit-like and super low quality, and sometimes by chance it goes ...
EsotericServers's user avatar
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3 answers
1k views

How do I solve this FPS steep frame rate drop when gaming on Linux Mint?

Relevant specs from neofetch: OS = Linux Mint 21.1 x86_64 / Host = H310M H 2.0 / Kernel = 5.15.0-72-generic / DE = Xfce 4.16 / CPU = Intel i5-8400 (6) @ 4.000GHz / GPU = NVIDIA GeForce GTX 1050 Ti / ...
linuxlife's user avatar
0 votes
1 answer
1k views

how to troubleshoot slow usb drive?

TLDR: How do I troubleshoot a slow usb 3.1 device plugged into a laptop. ISSUE: When I copy (tried GUI and terminal) the first few .iso files copy almost instantly 300mb/s+, but then the 3rd/4th start ...
Xueshe's user avatar
  • 21
0 votes
1 answer
674 views

Cannot resolve local sub domain on network

I have a raspberry with a dnsmasq server installed (via NetworkManager). I need to be able to resolve *.raspberry.local on my local (private) network. Here is my config : In /etc/NetworkManager/...
tholeb's user avatar
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0 votes
1 answer
221 views

18th core on my 13900k is experiencing constant 43% load, how to find the root cause of this behaviour

I am very confused by the load on my i9-13900k. It's always the same 18th core and only that one specific core. I tried to kill every process running on that said core but the load still persists. Can ...
Gabriel's user avatar
  • 133
0 votes
1 answer
219 views

How to diagnose a sharp, sudden increase in the frequency with which processes enter the D ("uninterruptible sleep") state

The Linux cluster I work on recently started getting frozen for a few minutes at a time. I've determined that the reason for this behavior is that processes are very frequently landing in the D (&...
kjo's user avatar
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1k views

Recover ext4 partition superblock `Free blocks count wrong for group #0`

I have a broken ext4 partition which I want to recover. The problem occurred because of a sudden power loss. The partition is an encrypted luks partition. Opening the luks container works. Say I open ...
student's user avatar
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1 vote
1 answer
494 views

Internal SSD not detected in boot or lsblk

I had a Linux mint system which was working fine until it froze and the "safe restart" of alt+Sysreq+REISUB didn't work, so I had to hard shutdown. After this the bootable SSD stopped ...
Spock366373's user avatar
0 votes
1 answer
3k views

Discord keeps crashing randomly

Discord on my computer crashes constantly at random intervals. Sometimes I can use it for hours without issues, other times it crashes just 10 minutes after starting. I thought that this had to do ...
linuxlife's user avatar
1 vote
1 answer
117 views

Installing Cube from a .gz file on Linux

I need help installing a .gz file on my computer through Linux. I have run every command up to the ./configure.(install tar.gz or just .gz) tar xfvz file name.gz cd file name sudo apt-get install ...
Decku's user avatar
  • 11
1 vote
0 answers
178 views

Ubuntu Intermittent internet and stable local connection

I have a server running Ubuntu 20.04 LTS. I can connect to it via SSH from any other computer on my network no problem. I can also access the services it has running from my network. Unfortunately its ...
ltum's user avatar
  • 11
1 vote
1 answer
311 views

Troubleshooting Wine-staging and Yabridge VSTs

I'm running two Windows VSTs using Wine-staging 7.15 and Yabridge 4.0.2-1 hosted in Bitwig Studio on Manjaro. The plugins are Arturia Pigments and Novum Granular which both work as expected except for ...
Кафка's user avatar
2 votes
1 answer
467 views

How to Repair Grub in a Cloud VM (Azure)

I ran into some troubles doing do-release-upgrade and it killed my grub boot. Because I couldn't find the steps on how to fix this online I'll answer with my own notes below.
laktak's user avatar
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My computer hangs when I "share screens". How do I start diagnosing it?

I've just updated to the latest version (22.04.1 LTS) of Linux through the official updater and my computer is very unstable when sharing screens. I've been having this issue in OBS, Chrome and ...
Timothy C.'s user avatar
0 votes
1 answer
174 views

SAR / syssstat issues

I am having issues with SAR not populating daily logs from the 10 minute interval runs it is supposed to be doing. I have the same configuration on multiple servers, and they are running sar just fine....
Dylan Michaels's user avatar
1 vote
1 answer
228 views

Weird dmesg Errors, Perhaps causing the Lag?

I have some lag on my system that acts like a memory leak. Overtime, especially with repetitive suspends, my system can become unusable. Even shutting it down can take 15~20min if i don't hardshut it ...
Temple Pate's user avatar
3 votes
0 answers
505 views

How do I interpret and troubleshoot occurances of Linux system errno?

In system administration and software development on Linux, it is very common to come across errors that come from the system C library and/or kernel, which I will call "errnos" (short for &...
allquixotic's user avatar
2 votes
0 answers
1k views

Error mounting: wrong fs type, bad option, bad superblock, missing codepage or helper program, or other error

Several years ago I purchased a Synology NAS. I had it set up like so: (NAS) ==> (1)(2)(3)(4)(empty) After a while, I noticed that any drive I plugged into bay number [3] would fail after a couple ...
junkmac filter's user avatar
1 vote
0 answers
883 views

Does crashing on an I/O writing stress test definitely indicate SSD hardware failure?

Overview For around the last two years, my desktop computer has been crashing intermittently due to filesystem errors forcing the SSD to become read-only. It might go well over a week without anything ...
tlake29's user avatar
  • 11
1 vote
0 answers
351 views

How do diagnose occasional shell lag?

I am using zsh with a bunch of plugins (Python venv, git status, etc). Occasionally, when I cd to a directory, it waits for a couple of seconds before letting me type in commands. When I cd to the ...
Jessica's user avatar
  • 369
0 votes
0 answers
19 views

network services reachability troubleshooting

I have voyage linux on a system. It is running an apache server and an sshd. For some reason, i cannot connect to those services from another machine. There are no error logs that i have been able to ...
atapaka's user avatar
  • 591
0 votes
1 answer
940 views

Stuck in emergency mode after cloning my system with clonezilla

I cloned my installation from a 240GB SATA SSD to a 500GB NVMe SSD using Clonezilla. The cloning was completed successfully, except for a failure with initrd (unfortauntely I don't remember the ...
Gisbi's user avatar
  • 23
0 votes
1 answer
412 views

QEMU stuck keys

My keyboard locks up sometimes when I press CTRL related keyboard combinations, for example CTRL+C, CTRL+V etc. One behaviour is that the "C" key seems to be stuck so it writes "...
Quonux's user avatar
  • 101
0 votes
1 answer
102 views

OpenDNS setup help

Tried to setup Opendns, but this time it did not work (in my previous install, it worked just fine, unfortunately my pc crashed and had to re-install my OS), followed the setup guide, unfortunately ...
michaelbr's user avatar
  • 111
0 votes
1 answer
30 views

Finding the cause: WiFi almost unusable on up-to-date Debian, works fine on old Ubuntu

WiFi on an up to date Debian 11.2 works very badly compared to an old Ubuntu 18.04 on the same hardware and same testing conditions. I'm wondering what would be a sensible way of isolating the cause? ...
Andreas's user avatar
  • 521
1 vote
0 answers
2k views

logrotate not compressing files

I'm having issues with logrotate as it does not compress files. We migrated from Centos 7 to Alma linux and since it has not worked. I'm trying to get logrotate to rotate and compress log files from /...
networkz's user avatar
0 votes
1 answer
772 views

How to determine why system suspends but fails to resume

How would I go about determining why my Chromebook (Acer CB515-1HT using the SeaBIOS for boot provided by MrChromeBox.) running Linux Mint suspends successfully but does not resume? When it resumes, ...
AdvApp's user avatar
  • 131
0 votes
0 answers
199 views

Atomic Simulation Environment - GUI appears on one laptop, but not the other

I'm a student at University using MobaXterm to access a supercomputer cluster, which runs off of a standard UNIX BASH CLI. Within this system, and within the lab I am a member of, there is a piece of ...
Luke Pretzie's user avatar
3 votes
1 answer
517 views

Unable to launch Steam on Nvidia 495 driver, 5.4 kernel, Linux Mint 20.3

After a few weeks of not having time for games, today I am unable to launch Steam. I do not remember some bigger change in the system = Linux Mint 20 than upgrading my Mint today from version 20.2 to ...
Vlastimil Burián's user avatar
1 vote
2 answers
2k views

Ubuntu on Laptop not detecting wifi adapter

The wifi adapter in my laptop is Realtek RTL8852AE. I am currently dual-booting Windows 11 and Ubuntu 20.04.3 LTS. I've gone through multiple options for what it could be, installed rtw89's repository ...
Rell's user avatar
  • 21
0 votes
0 answers
433 views

What keyboard shortcut did I accidentally press at the login screen that killed the window manager?

Mystery time! I'm using a Thinkpad T450s, running Kubuntu 20.04.3 and KDE Plasma 5.18.5. Today I decided to wipe off my keyboard. To do this I locked the screen, and gently wiped the keys from left to ...
nitro2k01's user avatar
  • 191
0 votes
0 answers
203 views

Random log out of tty1 while typing

I experienced a sudden log out from tty1 where I run the i3 window manager. While typing stuff, the screen went black, and in a matter of seconds I was back to the login screen (I use no login manager)...
Enlico's user avatar
  • 1,677
0 votes
0 answers
2k views

Cheese (Camera) is not working in Ubuntu 20.04 on my Corei7 11th Gen(Lenovo Thinkbook)

My camera was working properly yesterday, but all of sudden it stopped working next day. I can only see the black screen as below: My system details are: I've tried all the other solutions like ...
Faheem's user avatar
  • 1
2 votes
1 answer
640 views

Colors become distorted randomly in Linux, not in Windows

Currently running Fedora, but my issue is not exclusively pointed to this distribution! I have been experiencing this issue of my screen colors inverting/distorting from time to time. And this bug is ...
Sarmad Dhuddi's user avatar
0 votes
0 answers
234 views

Replacing a faulty disk in a RAID 5 btrfs filesystem?

I'm running Rockstor with one of my pools using RAID 5 btrfs - which I know is experimental, I don't think that's the issue here. One disk of the four in the pool is faulty, with 20000+ write I/O ...
Martin Edelius's user avatar

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