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.

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Error Mounting SFTP Folder using SSHFS on Ubuntu: fuse: unknown option `KexAlgorithms=diffie-hellman-group14-sha1'

On a Ubuntu 20.04 system, I have successfully mounted a SFTP folder by running sshfs -o KexAlgorithms=diffie-hellman-group14-sha1 foo@example.com:/ ~/foo However, on a Ubuntu 16.04 system, when I run ...
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Ubuntu Keyboard/Mouse Input ~Sometimes~ Freezes on Lock Screen

My recently-installed Dual-Boot Ubuntu / Windows Dell Inspiron laptop sometimes freezes the keyboard input / mouse on the lock screen. BUT The funny part: it's not really frozen. I can still change ...
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1answer
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SVN svnrdump load - pre-revprop-change hook

I am trying to migrate a subversion repository from one server to another. I can dump the repository from the old server to a file, but I am having issues with loading the dump file to the new server. ...
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Why Windows disk override motherboard configuration?

My PC1 has an SSD with just Linux-PC1. My PC1 boots Linux-PC1 on start-up. My PC2 has a HDD with Linux-PC2 and Windows. My PC2 has GRUB on start-up to select which OS to boot. I attached the HDD to ...
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How to merge two partitions in Linux

Quick question: I just looked at the other question again and the person who asked the question is using the liveboot gparted, I just have it regular... could this be my problem? Since the one I am ...
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1answer
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Bash: How to remove 0x0A character from start of file

Somewhere before the line count=~echo "$conflict" | wc -l~ (~ are used in place of back quote), the hex character 0x0A is being added. So, when the files $DA and $DB are the same (meaning ...
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1answer
916 views

Piano keyboard connects to Qsynth but no sound Linux

I'm running Mint 18.3 Mate on an Intel i5-8600K desktop. I do not have a sound card or speakers. I have a Sennheiser headset that works fine when I listen to something off the web like youtube. I ...
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2answers
17k views

“NTFS signature is missing.” How to mount this HDD? (or is it password protected?)

I'm trying to mount a hard disk (SATA-3), but I rest stuck at the error: NTFS signature is missing Is it possible that a hard disk is protected by a password or has another kind of protection? How ...
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Netplan/DHCP Config: Forwarding requests from one bridge port to another

im trying to configure a bridge network on Ubuntu 20.04. There are 4 ethernet ports in the brige. This is how the corresponding netplan config looks like: network: version: 2 ethernets: ...
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2answers
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Turn off mouse LED lights on linux

I have a Logitech G302, a fine mouse. However, it glows blue, and the intensity increases and decreases. This can be distracting and I would like to turn off the lighting inside the mouse. How can I ...
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.Xresources file ignored on OpenSUSE Leap 15.2 with GNOME

I have written an .Xresources file with xterm settings, and it is not loaded when user logs in: the xterm has the ugly default settings when launched. This happens on a VirtualBox VM running OpenSUSE ...
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Can I hard link files with rsync instead of copying them?

cp -l hard links files instead of copying them, saving filesystem space. I need to use rsync instead of cp because of its --exclude capabilities. So my question is, how do I get rsync to hard link ...
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Is there a Bash command to convert \r\n to \n?

Is there a Bash command to convert \r\n to \n? When I upload my scripts from Windows to Linux, I need a utility like this to make things work.
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Setting up KVM with GUI Ubuntu getting download errors [closed]

Since asking this question in the Ubuntu stackexchange and not getting anywhere with that I've decided to post it also here to see if any Ubuntu/KVM users know that are not part of the Ubuntu ...
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grub2-install: error: /boot/efi doesn't look like an EFI partition on a fresh Gentoo install

I need a Gentoo 13 machine to test some software on the platform. I'm not a Gentoo regular, so I'm suffering their install procedures. I'm at Configuring the bootloader | Installing GRUB2, and it ...
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Docker with Ubuntu 20.10: `strconv.Atoi: parsing “0-beta1”: invalid syntax`

I just update all packages installed in my machine by using the usual: sudo apt update && sudo apt upgrade -y && sudo apt autoremove -y After rebooting the system I saw my Docker ...
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7answers
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A linux program that uses memory

I need it execute a certain kind of linux program from the terminal. The only thing the linux program needs to do is use more and more memory. Are there any programs like that?
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Linux Mint: Permamente measured values CPU as Sensor App?

I would like to have the processor temperature displayed within Linux Mint. Currently I only have the sensor command which shows the actual temperature but does not offer a permanent monitoring. ...
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sshd “received disconnect: disconnected by user”

I can successfully login to the SFTP server (uses SFTP chrooting), but every time I issue ls, the connection will close: I mounted /logs/xxx to /sftp/user/xxx and am unsure if the binding I did has ...
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Defining OS to be booted via USB-stick

I have a laptop with two SSDs on it. Before the second one got bought, I installed Windows 10 on the first one. Sometime later I got the second SSD, removed the first SSD, and installed Linux on the ...
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yum hangs and won't respond

I am running yum check-update and it freezes after a 2 lines of output: Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile I'm not sure what is happening. The last things I ...
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2answers
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How to DNAT local packets

I have a program send UDP packets to 192.168.0.2:12345, receive packets at port 54321, and it uses 192.168.0.1 IP address. I want it send packets to 10.10.10.10 with same port, because this program ...
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1answer
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Recursive filesystem notifications (inotify) for Ubuntu Karmic Koala

I need a program which generates events when a file is moved, removed or its extended attributes are changed. I'm running Ubuntu Karmic Koala 32-bit desktop. inotify is the standard solution for such ...
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1answer
6k views

Checkpoint VPN client not connecting, Debian Wheezy

Edit: what I'm looking for here is help finding out what's going on at the OS level, so that I can find out for sure whether the problem is on my end or my workplace's end, or in between. I'm not ...
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Is it possible to share OS files between multiple VMs

I was thinking of ways to minimize resources on a server that hosts VMs with limited space. Say every VM on this server runs the same exact OS, for example Ubuntu 18.04. This is currently a purely ...
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3answers
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Files in red, what do they mean

What does it mean when a file is in red. I change into one of my directories and run ls and it shows these files I've never seen in red. duplicity-full.20120405T013825Z.vol10.difftar.gz and goes all ...
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How to change root email on Ubunto 20.04

i want to change or better to say, to set up a root email. I searched for, that there have to be a /etc/aliases to change or one another way, but there is no aliases and also i havent installed a ...
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3answers
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How do I add a shortcut to the Show Applications menu in Ubuntu 17?

I'm pretty new to Linux in general and I'm curious how the programs I install with apt get shortcuts in the Show Applications menu. Additionally, I would like to learn how to add my own application to ...
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1answer
11 views

What should I use or need to ssh log to another computer assuming I have private and public key of a known host?

From PuTTY, I can ssh log to a remote server since my public key has been "registered" to this server. By now I can access this server through only this computer running PuTTY. However I'd ...
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Network went down - what is worth checking?

There is an embedded Debian linux running on my custom hardware. Network is wired, via eth0. Unfortunately it does not have so much peripherials, there is no keyboard or monitor, I can login via SSH ...
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Why case-insensitive option in ext4 was needed?

I was reading about Linux 5.2 patch note released at last year, I noticed that they started to optional support for case-insensitive names in ext4 file system. So... what I am wondering is the reason ...
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1answer
2k views

mount a cifs share without root/fstab

Hello is it possible to mount a samba share without root privileges? Currently I have a java program that needs to access a smb share. (it will index every file on the smb share and will create some ...
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2answers
38k views

Headset microphone not detected by Pulse und Alsa

I have an Acer Aspire V15 Nitro Laptop that only sports a combo jack for both microphone and headphones at the same time. It was always a bit tricky but worked until I reinstalled Arch Linux recently. ...
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1answer
44 views

Kali Linux + Windows-To-Go Multiboot USB?

I just bought a Patriot 256GB USB. I want to run Kali Linux (with encrypted persistence) and Windows To Go (Server 2019 or Windows 10.) I've used YUMI and Sardu for multiple Linux Live USB and ...
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How to push changes to web server via github

I am new to web development. I am developing on a linux system. Every time I make changes to my application on my local machine, I have to scp the entire app to my server, even if I changed something ...
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1answer
5k views

Can I move Linux from running on a USB to a hard drive partition?

I'm working on helping my brother with a project. He has been running Lubuntu Linux from a USB drive while he was setting up some server and web projects (proof of concept). Now that he has the ...
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Reasons for Bad file descriptor error when working on cifs mount

When working on a shared cifs mount I sometimes get an error "Bad file descriptor". I often create temporary files, and either delete them or move to a different location. I cannot reliable ...
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Conflict between libffi.so6 and libffi.so7 [closed]

In GNU/Linux Debian 10.4.0 "Buster", I am installing Glibc, from source code. When I run configure script, this display the conflict between libffi.so6 and libffi.so7. May I solve the ...
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1answer
14 views

DNS queries from Linux failing, Windows succeeding - How to Troubleshoot?

On a small network, the router is acting as the pass-through DNS server proxy. When acting as such, DNS queries from Linux are failing, while DNS queries from Windows are succeeding with no delay. ...
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How to save tmux session on suspend and shutdown?

I can manually save when in the tmux window by issuing ctrl+b,s (using tmux ressurect extension) How could I additionally trigger the saving on suspend and shutdown? This question offers some ideas ...
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Docker containers facing curl: (60) SSL certificate error after using WSL2

I haven't had any problem before using the WSL2 based engine in Windows 10 Pro. when I have changed, not just the time is always set to Greenwich (when I create a new container) but also even if I set ...
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0answers
52 views

VNC over Unix Domain Socket won't start

I'm trying to set up a VNC server that will listen on a unix domain socket. but it fails without a clear error message. My end goal is to connect Websockify/NoVNC to the socket to avoid the VNC port ...
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11 views

USB not detected in Filesystem

My USB drive doesn't get detected anymore. I remember that I used it to boot and install from, but still used it to store data afterwards. First it stopped working on my PC, and now on my Laptop. I ...
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1answer
28 views

Is this a correct BTRFS incremental backup strategy?

Assuming /home is my BTRFS partition (to keep backups of) & /storage as my secondary disk (to store backups on), will this work? Initial Backup (8th Sept 2020): btrfs subvolume snapshot -r /home /...
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Openstack Ceph reclaim unused space

I've an Openstack Setup which is now supposed to use Ceph / a RBD storage as backend for root disks. Everything is working fine, except for the following: If I create a testfile on a VM with e.g.: dd ...
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2answers
4k views

How to run an infinite loop program on startup on a raspberry pi without halting boot up

I have a shell script: #!/bin/bash while sudo /home/pi/MyCode; do :; done echo Error with MyCode which runs a program in an infinite loop. I want to set up the shell script to run at start-up (which ...
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2answers
17 views

How do I install software in debian if I cannot use the network and the system doesn't recognize the iso?

I am running Debian 10.5.0. I have installed debian using netbootin and a flash drive. I am now trying to install various packages and programs which are on the iso. When I try a command like: sudo ...
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2answers
60 views

How do I wrap dangerous linux commands with verification prompt

Question: How can I wrap linux commands to ask for verification before executing the command? Example: $> shutdown -r now Please verify the host you are shutting down by typing the hostname: ...
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1answer
926 views

ntfs disk dying or..? rsync and mkdir failing, strange behavior

System root@host:~# uname -a Linux host 3.2.0-4-686-pae #1 SMP Debian 3.2.57-3+deb7u1 i686 GNU/Linux Mounts root@host:~# mount | tail -2 /dev/sda1 on /mnt/sda1 type ntfs (rw,relatime,uid=1000,gid=...
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1answer
1k views

ENOENT on a file that exists. Why? [closed]

uprego@udv1320ku12:~$ ls /usr/bin/ -thral | grep java -rwxr-xr-x 1 root root 78 Aug 25 2010 javacc -rwxr-xr-x 1 root root 2.5K Mar 13 2012 dh_nativejava lrwxrwxrwx 1 root root 22 Sep 23 19:40 java -&...

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