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Q&A

General Q&A about Linux and Unix-like operating systems

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+0 −0
Dual booting without rebooting

Suppose you have two Linux distributions installed in a dual boot situation. One issue that can happen is when you need to frequently switch. Rebooting is disruptive if you have a bunch of things ...

0 answers  ·  posted 1h ago by matthewsnyder‭  ·  edited 1h ago by matthewsnyder‭

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+0 −0
Can you reuse your home directory while distro hopping?

I want to install additional Linux distributions on my computer, so I can try some new ones and see if they're better than my current ("old") one. I've been using my current distro for a while. I'...

0 answers  ·  posted 1h ago by matthewsnyder‭

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+0 −0
What are the most active distros without systemd?

Ever since systemd was adopted by mainstream distros, there's been many reactive projects aiming to provide a distro without systemd. I've often had the impression that a lot of these were motivat...

0 answers  ·  posted 2h ago by matthewsnyder‭

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+0 −0
How do you install Manjaro as LVM on LUKS?

There is a popular partitioning scheme, described in the Arch wiki as LVM on LUKS. The meat of this is: /boot is its own unencrypted partition The rest of the drive is a giant LUKS partition I...

0 answers  ·  posted 2h ago by matthewsnyder‭

75%
+4 −0
Best practice for splitting data between a fast and slow drive

If I had a fast drive (SSD) and a slow one (HDD), what parts of my Linux system should go on the fast one?

1 answer  ·  posted 3d ago by matthewsnyder‭  ·  edited 3h ago by matthewsnyder‭

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+0 −0
How to open documentation in qch format in Debian based systems?

I wanted to download C++ documentation and found cppreference-doc-en-qch in Debian's archive: Description: C and C++ standard library reference (English, Qt Help variant) A version of online C ...

2 answers  ·  posted 11h ago by Quasímodo‭  ·  last activity 9h ago by Quasímodo‭

50%
+0 −0
Adding mount points to an existing partition that already has one

I have / mounted on a relatively small partition and /home on a larger one taking up most of the rest of the drive (as seems to be common practice). I'd like to move certain other parts of the file...

1 answer  ·  posted 24h ago by Karl Knechtel‭  ·  last activity 13h ago by Canina‭

75%
+4 −0
How do I find out the version of a program in a terminal?

How can I print the version of a program in the terminal, so that I know which one I have installed?

3 answers  ·  posted 14d ago by matthewsnyder‭  ·  last activity 1d ago by alx‭

60%
+1 −0
Enable multiplayer for Titanfall 2 from EA Games with Lutris

I have installed the Flatpak version of Lutris from Pop_Shop in PopOS. From within Lutris, I have installed the EA App, which I have then used to download several games from my library. Unfortunate...

2 answers  ·  posted 28d ago by Andreas from the dark caverns‭  ·  last activity 2d ago by Michael‭

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+0 −0
Initramfs: "triggering uevents" suddenly takes a really long time

Early in boot, after triggering uevents but before the encrypt hook (decrypting drives) my system takes a very long time, over a minute. Actually, I bet it takes 90 seconds which is the typical def...

0 answers  ·  posted 2d ago by matthewsnyder‭  ·  edited 2d ago by matthewsnyder‭

60%
+1 −0
How to set up a system with two hard drives?

I have multiple systems, each of which has two different hard drives: one fast SSD and my good old spinning rust. Originally, I had set up the drives to have my root directory / on the SSD and my ...

1 answer  ·  posted 3d ago by mr Tsjolder‭  ·  last activity 3d ago by Iizuki‭

50%
+0 −0
How to perform a zuluCrypt "Create Encrypted Container in Hard Drive" but as a Linux command line?

I have long been in the process of converting my manual steps to create a new backup disks into an automated script. The only part I have left is the initial "creation" of the disk, meaning whateve...

0 answers  ·  posted 3d ago by jmari.hendry@floodouts.com‭

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+0 −0
Ubuntu system has lost DNS access

At the most embarrassing time, Firefox on my Ubuntu laptop wouldn't connect to any websites. I've narrowed it down to a DNS issue. I can ping IP addresses, sftp to the computer, etc. The problem af...

0 answers  ·  posted 3d ago by gmcgath‭

50%
+0 −0
HTTPie give SSLError for normal sites

HTTPie complains about TLS certificates ever for sites I know are fine: $ https wikipedia.org https: error: SSLError: HTTPSConnectionPool(host='wikipedia.org', port=443): Max retries exceeded w...

1 answer  ·  posted 3d ago by matthewsnyder‭  ·  last activity 3d ago by matthewsnyder‭

57%
+2 −1
How can I put my home directory on a different partition?

I want /home to be on a different partition than the rest of my files. How can I do this?

1 answer  ·  posted 3d ago by matthewsnyder‭  ·  last activity 3d ago by matthewsnyder‭

60%
+1 −0
Lutris app or game renders incorrectly

If I have an application such as the EA App running from Lutris, after starting the computer from hibernation, it sometimes doesn't render correctly; the window renders some areas fine, while other...

1 answer  ·  posted 5d ago by Andreas from the dark caverns‭  ·  last activity 5d ago by Andreas from the dark caverns‭

60%
+1 −0
How to export public GPG key?

GPG stores keys inside an internal database of some sort. How to export your public key in the familiar -----BEGIN PGP PUBLIC KEY BLOCK----- format so that it can be imported to other software? E.g...

2 answers  ·  posted 2mo ago by Iizuki‭  ·  last activity 7d ago by Michael‭

GPG
66%
+2 −0
How do you rotate webcam feed by 90 degrees?

When I view my document camera's feed in guvcview it is in landscape mode. I want it to capture things in portrait mode, since I usually take photos of documents. Currently, I have to rotate all t...

1 answer  ·  posted 10d ago by matthewsnyder‭  ·  last activity 7d ago by Quasímodo‭

71%
+3 −0
Does Fedora have cutting edge features, and what makes it so?

I saw another post recommend using Fedora if you want cutting edge features. Is Fedora really a "cutting edge" distro? I am not very familiar with Fedora, I know it's a community counterpart to R...

1 answer  ·  posted 2mo ago by matthewsnyder‭  ·  last activity 10d ago by Michael‭

71%
+3 −0
How do I send console output to the clipboard?

Suppose I have a command that prints to the standard output, like: $ echo hi hi How can I send this to the clipboard instead, as if I selected the output and did Ctrl+C?

3 answers  ·  posted 14d ago by matthewsnyder‭  ·  last activity 13d ago by r~~‭

60%
+1 −0
How to make changes to logind.conf take effect?

I added IdleAction=hibernate IdleActionSec=30min To my bat /etc/systemd/logind.conf. Then I waited 31 min, but nothing happened. It didn't hibernate. Presumably, the config changes are not loa...

1 answer  ·  posted 14d ago by matthewsnyder‭  ·  last activity 14d ago by GeraldS‭

66%
+2 −0
How do I add a shortcut to run a program to my DE?

My DE has a bunch of programs in the start/applications menu. How can I add my own in there? For example, say I found a terminal command foo --bar --baz that does something I want. But I don't want...

1 answer  ·  posted 14d ago by matthewsnyder‭  ·  last activity 14d ago by matthewsnyder‭

60%
+1 −0
Install and run Windows applications

How do I install and run Windows applications downloaded from a website? Windows applications do not run natively on Linux, but can be run using Wine. When downloading these applications from a we...

2 answers  ·  posted 14d ago by Andreas from the dark caverns‭  ·  last activity 14d ago by matthewsnyder‭

60%
+1 −0
How do I keep track of configuration changes?

Occasionally I ask how to do some configuration, and people tell me to do stuff like edit some config file in an XYZ directory. But if I configure everything this way, it will turn into a mess, and...

1 answer  ·  posted 14d ago by matthewsnyder‭  ·  last activity 14d ago by matthewsnyder‭

66%
+2 −0
How do I find the code of a keyboard key?

How do I find the exact code of a key on my keyboard?

1 answer  ·  posted 14d ago by matthewsnyder‭  ·  last activity 14d ago by matthewsnyder‭

66%
+2 −0
What happens on a modern Linux if you hibernate with less swap than RAM?

On a modern Linux system, what happens if you attempt to hibernate when your swap is smaller than your RAM? For example, say RAM is 16 GB and swap is 8 GB.

0 answers  ·  posted 14d ago by matthewsnyder‭

50%
+0 −0
How to run offlineimap with Python 3.11 on Arch?

Arch switched to Python 3.12 which broke offlineimap. I want to use Python 3.12 as the default on my system, but just offlineimap should run with an alternative Python 3.11 environment. Is it possi...

0 answers  ·  posted 17d ago by matthewsnyder‭  ·  last activity 16d ago by matthewsnyder‭

66%
+2 −0
List remote container tags

How to list tags of a container in container registry using CLI tools? Kinda like you would browse them visually in dockerhub.

1 answer  ·  posted 17d ago by Iizuki‭  ·  last activity 17d ago by Iizuki‭

50%
+0 −0
Kmail creates files outside mail directory

When I create a new Maildir account in Kmail, pointing to /foo/bar, I expect it to create directories like: /foo/bar/cur /foo/bar/new /foo/bar/tmp /foo/bar/some-folder/cur /foo/bar/some-folder...

0 answers  ·  posted 17d ago by matthewsnyder‭  ·  edited 17d ago by matthewsnyder‭

50%
+0 −0
Basic GPU usage monitoring

How do you monitor GPU usage on Linux? I am most interested in a "% GPU usage" and maybe "GPU temp" statistic, not so much very detailed stuff.

2 answers  ·  posted 17d ago by matthewsnyder‭  ·  last activity 17d ago by matthewsnyder‭

50%
+0 −0
What is Kmail running in the background?

When I run Kmail on i3, and then close it, it appears to continue running some stuff in the background. For example, I periodically get notifications about new mail from dunst, even though I have c...

1 answer  ·  posted 4mo ago by matthewsnyder‭  ·  last activity 18d ago by Justin‭

66%
+2 −0
Keep OpenRGB profiles active after hibernation and shutdown

I have created a set of profiles in OpenRGB that set the RGB lights on the fans and LED strips inside my desktop case. This works as expected, however, the activation of a profile does not persist ...

1 answer  ·  posted 1mo ago by Andreas from the dark caverns‭  ·  last activity 18d ago by Justin‭

60%
+1 −0
Show GPU usage in System Monitor

In PopOS's standard System Monitor application, how do I see the GPU usage? I can see the CPU, RAM, disk and network usage, and graphs for them, but GPU usage is listed nowhere. It's available in M...

1 answer  ·  posted 27d ago by Andreas from the dark caverns‭  ·  last activity 18d ago by Justin‭

66%
+2 −0
Monitor computer temperatures

How do I read computer temperatures from my desktop in PopOS? Is there a terminal command, DE extension or GUI application that I can use for the purpose? The UEFI reports CPU, CPU case and motherb...

2 answers  ·  posted 27d ago by Andreas from the dark caverns‭  ·  last activity 18d ago by Justin‭

75%
+4 −0
Auto-enable FN-toggling for the first N FN keys

How can I auto-enable FN-toggling for the first N FN keys? F7-F12 on my keyboard are used for audio control, while, many games that I play, use the lower FN keys. Therefore, I'd like to relieve mys...

2 answers  ·  posted 23d ago by Andreas from the dark caverns‭  ·  last activity 19d ago by Michael‭

50%
+0 −0
Why are most distros so laggy on my Intel+NVIDIA laptop? [closed]

I've been distro hopping for years now. I love Fedora and Tumbleweed, but everything I've tried beyond Ubuntu is slow and jumpy, and even Ubuntu lags behind Windows 7, 10, and 11. Are the NVIDIA dr...

0 answers  ·  posted 1mo ago by Upgrade6082‭  ·  closed 23d ago by Quasímodo‭

66%
+2 −0
Control desktop fan speeds

How do I control my computer's fan speeds, including the case fans, and the CPU pump and fan speed? Moving from Windows on an Acer laptop, I am used to Acer's PredatorSense application which lets ...

0 answers  ·  posted 27d ago by Andreas from the dark caverns‭  ·  edited 27d ago by Andreas from the dark caverns‭

50%
+2 −2
Calculate the SHA1 checksum of a file

How to calculate the SHA1 digest of a file in a shell?

2 answers  ·  posted 1mo ago by Iizuki‭  ·  last activity 28d ago by Iizuki‭

66%
+2 −0
Stop Lutris from changing the screen scaling

Every time I open EA Games from within Lutris, the desktop's UI/screen scaling is reset from 150% to 100%. This is in PopOS running with a 4K resolution on a 4K screen. The resolution is not change...

1 answer  ·  posted 1mo ago by Andreas from the dark caverns‭  ·  last activity 1mo ago by Andreas from the dark caverns‭

66%
+2 −0
Nerf an SSH login outside expected IP range

Can I restrict myself from certain actions when I SSH in from outside a certain IP range? For instance no sudo? Maybe with ~/.ssh/authorized_keys having a from="!1.2.3.4/26" option with some kind ...

1 answer  ·  posted 2mo ago by Michael‭  ·  last activity 1mo ago by Michael‭

ssh
60%
+1 −0
Can you put systemd units under a custom path?

The systemd manual gives a list of path where systemd looks for unit files. However, I want to isolate my units in a path of my own choosing. Is it possible to configure systemd to add some path t...

1 answer  ·  posted 6mo ago by matthewsnyder‭  ·  last activity 1mo ago by Cadence‭

81%
+7 −0
What unexpected things can happen if a user runs commands expecting a text file on input lacking a file-final newline?

It is often taught that in Unix/Linux text files should end with newline characters. The reason given (orally) to me by various sources was that "some commands (such as wc) assume or require a newl...

3 answers  ·  posted 11mo ago by Lover of Structure‭  ·  last activity 1mo ago by mirabilos‭

66%
+2 −0
<!nocheck> meaning in Build-Depends

Trying to understand what exactly <!nocheck> does next to a package in build-depends (for example, Perl). Debian Wiki says: Terms can be negated by using an exclamation mark as a prefix ...

1 answer  ·  posted 1y ago by nteodosio‭  ·  last activity 1mo ago by mirabilos‭

45%
+9 −11
Which Linux system to use?

What factors should I consider when choosing a Linux distribution? In particular, how does my level of skill or familiarity with Linux influence this decision? For example, are there distributions...

5 answers  ·  posted 3y ago by deleted user  ·  last activity 1mo ago by Michael‭

80%
+6 −0
How to forward SSH access of one machine, through another, to the rest of a network?

I have a setup with two Raspberry PIs, a CM3 module with only a USB connection to the outside, and the Pi4 with a lot of connectors. I set up things such that CM3 functions as USB Gadget, and once...

3 answers  ·  posted 3y ago by CanisSomnolentus‭  ·  last activity 1mo ago by Michael‭

71%
+3 −0
How to invert command exit code?

How to apply a logical not to a shell command, e.g. in a Bash script? So if the command exited with 0 (success) I would like it to be changed to a non-zero value, and if it exited with a non-zero ...

1 answer  ·  posted 8mo ago by Iizuki‭  ·  last activity 1mo ago by Quasímodo‭

75%
+4 −0
How to run a command on a list of files?

Suppose I have a list of files on standard input. These may be the output of find, cat filelist.txt or something else. How can I run a command on each file in turn?

3 answers  ·  posted 1y ago by matthewsnyder‭  ·  last activity 1mo ago by Quasímodo‭

75%
+4 −0
Close all desktop notifications

I'd like to hide/dismiss/remove all the notifications that applications like Signal have created. I know I can create notifications with, for example, notify-send -t 10000 "🤖 Here goes my message"...

1 answer  ·  posted 2y ago by Matthias Braun‭  ·  last activity 1mo ago by Quasímodo‭

66%
+2 −0
How to show motherboard model?

Surely there exists a command to print out the system's mother board model? Opening up the chassis is not an option.

2 answers  ·  posted 2mo ago by Iizuki‭  ·  last activity 1mo ago by Matthias Braun‭

71%
+3 −0
Why is 32768-60999 the default for local/ephemeral ports?

The local port range on my Arch Linux installation is 32768-60999 according to cat /proc/sys/net/ipv4/ip_local_port_range Wikipedia states that this range is "used by many Linux kernels" and th...

0 answers  ·  posted 2mo ago by Matthias Braun‭  ·  edited 1mo ago by Michael‭