Questions tagged [18.04]
New questions about 18.04 are now off-topic, unless asking how to update to a supported version. Seventh LTS (Long Term Support) release of Ubuntu, code-named "Bionic Beaver". Released on April 26, 2018. Reached End of Standard Support (ESS) in April 2023.
15,465
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Wireguard "Unknown device type"
When I run sudo wg-quick up /etc/wireguard/wg0.conf, I see the following error:
Error: Unknown device type
When I run modprobe wireguard:
modprobe: FATAL: Module wireguard not found in directory /lib/...
- 1
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0
answers
103
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Correcting dependencies... failed. After upgrade ubuntu 16.04 to 18.04 [duplicate]
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... failed.
The following packages have unmet dependencies:
dh-python : Depends: ...
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0
answers
283
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pavucontrol is not switching to headphones in Ubuntu 18.04
It is a strange problem in my Ubuntu 18.04 OS. The OS is not detecting my headphones, as if the headphone jack is broken/faulty. The output tab in the sound window is not changing, even if I plug or ...
- 233
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162
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Battery Drains on Suspend - Ubuntu 18.04 - ASUS Vivobook 15
The battery drains fully on suspension for Ubuntu 18.04 on my ASUS Vivobook 15. This is telling me that I'm not actually going into suspension. What am I missing?
One of the solutions suggested was to ...
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3
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0
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151
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Installation of Ubuntu 20.04 hung up and had to power off. After powering off, cannot boot into Linux on dual boot PC
For a little while now (6 years) my Lenovo z70 laptop was dual booted with having Windows 10 on one partition and Linux Ubuntu 16.04 on another partion.
Unfortunately, I had to upgrade to 18.04 since ...
- 31
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0
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92
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I'm trying to change the flags on my files I copied before stating fresh with Ubuntu 22.04
I made a copy of my files on a USB hard drive before starting fresh with Ubuntu 22.04. How do I change the ownership of the directories on the USB hard drive, file and sub-directories? I just want to ...
- 11
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2
answers
171
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Avoid switching between two versions of python for each service in the same environment
I managed to install python 3.6 alongside python 3.10, the problem is that when 3.6 is selected in update alternatives, walinuxagent service works fine when while netbox, netbox-rq and nginx services ...
- 166
-1
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1
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159
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Remote Desktop freezes when running code in terminal but not in Pycharm
I am having an extremely weird issue. Debug suggestions/fixes highly appreciated because it is preventing integration of new code into the team's workflow.
I have a deep learning pytorch code running ...
- 1
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1
answer
1k
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Installing Azure Linux Agent gives python related issues
When I got this server assigned, it has two versions of python (2.7 and 3.6), then I had to install 3.10 manually because the version of Netbox I want to use needed 3.8 minimum.
Everything looked fine,...
- 166
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0
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450
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Upload speed very slow in Ubuntu 18.04.6 while download speed is normal
I bought a new 1GB/s server from OneProvider and installed Ubuntu 18.04.6 on it.
The upload speed from ssh or FTP is very good, but the download speed is about 100kb/s from ssh, FTP and I tried to ...
-1
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1
answer
2k
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module 'collections' has no attribute 'Mapping' how to safely reinstall update-notifier-common?
When running app upgrade I get the following errors:
$ sudo sudo apt upgrade
[sudo] password for admin-federico-dostuni:
Hit:1 http://azure.archive.ubuntu.com/ubuntu bionic InRelease
Get:2 http://...
- 166
3
votes
2
answers
2k
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Getting an error when running apt update: ModuleNotFoundError: No module named 'apt_pkg'
When I run apt update on a Ubuntu 18.04.6 LTS, which is a server my company use for hosting Netbox, I get the following issue:
$ sudo apt update
Hit:1 http://azure.archive.ubuntu.com/ubuntu bionic ...
- 166
-1
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1
answer
74
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Can only ping external IPs
I have a headless computer running Ubuntu 18.04. It has until recently been happily operating as a Pi-hole on my wifi (Nest Mesh).
After attempting to install some new bits and bobs on it (Home ...
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1
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1
answer
305
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How to connect php-fpm with nginx?
I have a server that uses Nginx and PHP-FPM (PHP v7.4). It was working well and I executed the following command for some reasons:
apt-get --purge remove php-common
After that, I executed this:
apt-...
- 191
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votes
0
answers
722
views
Server and Apache getting shut down automatically/randomly
I have a AWS ec2 server, I'm running 2 websites there on 2 different domains (obviously) using Apache2. One is domain.com, another is docs.domain.com.
I'm running a wordpress website on domain.com. I'...
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1
answer
582
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Errors when running "sudo apt update" Ubuntu 18.04 Bionic with Hetzner
When I run
sudo apt -y update
I get
Hit:1 http://mirror.hetzner.de/ubuntu/packages bionic InRelease
Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:...
- 3
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0
answers
260
views
How to free these ports on Ubuntu-18.04
I am installing Redis Enterprise on Ubuntu 18.04 and it requires these ports to be opened for Redis cluster. I have created a new VM but not sure why these ports are opened and how can I make these ...
- 101
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0
answers
51
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18.04 on Virtualbox boots into tty1, unable to reinstall desktop or install other desktop
Running Virtualbox 7.0.4 with Ubuntu 18.04.3 LTS, kernel 5.3.0-26 (school project, may not be upgraded from 18.04).
It shows purple screen for a few seconds before booting into terminal.
I've tried ...
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2
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1
answer
525
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How do get my system to use the latest installed kernel?
I recently upgrade from Ubuntu 18.04 to 20.04 and then to 22.04. At least when going from 20.04 to 22.04 I got a prompt asking if I wanted to install the latest kernel, and I said yes (I can't ...
- 51
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1
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32
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How do I create a local server instance from a vhd downloaded from Azure?
I'm using Ubuntu 18.04. I need to create a local server instance from a vhd downloaded from azure. So far I have downloaded the disk image and created a local vm. I can log in normally, but the main ...
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0
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243
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Ubuntu 18.04.6 Intel Irıs XE
I have installed Ubuntu 18.04 recently.Then I assumed that it is not working properly. So ı have started using 22.04 version. But ı have to use 18.04 cause of ROS melodic. (I have a project to modify)....
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1
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372
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Updating Ubuntu 20.04 from 18.04 error [duplicate]
I have this error message when trying to upgrade from Ubuntu 18.04 to Ubuntu 20.04.
W:El objetivo Packages (main/binary-amd64/Packages) está configurado varias veces en /etc/apt/sources.list:4 y /etc/...
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0
answers
33
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Ubuntu 18.04 LTS gets stuck on boot after graphics driver update [duplicate]
I was attempting to run Luminar AI in the Virtual Machine with Windows 10. It gave me an error saying I needed to update the graphics driver.
I used terminal commands but I don't know which one I ...
- 11
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0
answers
2k
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remote desktop without monitor real display
and thank you in advance for the attention.
I have an ubuntu 18.04 lts 32 bit ( don't say me to upgrade please, I cannot ). I installed on it anydesk software to remotly control it at start up also (...
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0
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116
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I can't install Ubuntu 18.04 on Windows 11
I tried to install Ubuntu 18.04 on Windows 11, but it cannot be done. There are errors showing up, but when I tried to install Ubuntu 22.04 it's working.
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0
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50
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Developing application with expanded Filesystem (Still getting no space left on device error)
After mounting a 64Gb sdcard (/dev/mmcblk1p1) to my embedded device that has topped out of its 16Gb emmc (/dev/mmcblk0p1) df -h returns the following which looks correct:
Filesystem Size Used ...
1
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1
answer
146
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Errors were encountered while processing: mongodb-org
I'm getting the below error when installing Mongodb on Ubuntu 18.04:
dpkg: dependency problems prevent configuration of mongodb-org:
mongodb-org depends on mongodb-mongosh; however:
Package mongodb-...
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votes
1
answer
652
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WIFI - Intermittently disconnects
Not too sure about the issue causing the wifi to intermittently cut off and reconnect - seems like there's an issue with the queue but can't make sense of the rest of the information provided by dmesg....
1
vote
1
answer
30
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Ubuntu 18.04 password
I am running long running matlab code on Ubuntu 18.04.
Can I do something that requires a password so that there is no user login while the analyzes are being made on the computer ?
So when I'm not at ...
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0
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43
views
Some applications are drawn with wrong interface
This is on Lubuntu 18.04 with
Desktop: LXDE
Session: Lubuntu
Window Manager: Openbox
(I'm not exactly sure what this information means.)
I must have uninstalled or changed something vital today, ...
- 11
2
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0
answers
304
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xde-desktop-portal crashing with SIGSEGV due to reading a NULL VMA, causing issues with Inkscape and Krita. Ubuntu 18.04.6
The issue
Basically the title.
Lately both programs have began to take longer than usual to start, and, in the case of Inkscape, attempting to open a file will result in a crash.
Attempting to open a ...
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1
vote
3
answers
373
views
Recovering LUKS partition with shred disk
I have Ubuntu 18.04 LTS encrypted on my SSD and I ran the command:
sudo shred -vfn 1 /dev/sda
and have overwritten 8-10 GB I guess.
Furthermore, my computer could not load the password input window ...
- 13
2
votes
1
answer
650
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How can I increase the size of lvm partition?
I have a ubuntu 18.04 system. I have a total of 3 partitions and in my third partition, I have an LVM partition. I need to increase the size of that partition. Here is the output of lsblk I need to ...
- 21
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0
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37
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After upgrading to Ubuntu 20.04, Ubuntu no longer loads
I upgraded from Ubuntu 18 to Ubuntu 20 by running the following commands.
sudo apt-get update
sudo apt-get upgrade
sudo reboot
sudo apt --purge autoremove
sudo apt install update-manager-core
sudo do-...
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1
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0
answers
256
views
Failed to mount Volume. Not Authorized to perform operation
I'm using an SBC (Khadas VIM1) with Ubuntu 18.04.6.
I have an SD card formatted in FAT32 on it and I'm having access to Ubuntu via the VNC server.
On the desktop, I clearly see that the SD card is ...
- 159
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2
answers
52
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How to set up on Ubuntu 18.04 VM on Virtualbox for Edx Stanford Compiler Course
https://courses.edx.org/courses/course-v1:StanfordOnline+SOE.YCSCS1+3T2020/6b750292e90d4950b895f621a5671b49/
I am trying to untar the downloaded package and it keeps failing.
nyck33@nyck33-VirtualBox:/...
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1
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441
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Ubuntu 18.04.6 LTS on Azure VM can't run apt upgrade: ModuleNotFoundError: No module named 'apt_pkg'
I got this error message when I try to update the software installed with APT:
$ sudo apt update && sudo apt upgrade
Hit:1 http://azure.archive.ubuntu.com/ubuntu bionic InRelease
Get:2 http://...
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1
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E: Unable to locate package php7.4-pear
I am trying to install php extension pear for php 7.4 in Ubuntu 18.04. When I run command sudo apt-get install php7.4-pear I get this result:
Reading package lists... Done
Building dependency tree ...
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0
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125
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What causes Automatic Suspend to fire up on Ubuntu 18.04?
I have Ubuntu 18.04 where X11 is implemented by Xorg using gdm3 as a login shell.
I load to dconf following .ini file (in addition to Ubuntu 18.04 gdm3 defaults):
# New added
[org/gnome/control-center]...
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1
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897
views
Set MySQL default-time-zone to Europe/Berlin results to MySQL crash
I'm running a VPS with Ubuntu 18.04.6 LTS (GNU/Linux 4.15.0 x86_64) and MySQL 5.7.40.
Until now I always took the following steps to setup the right time zone for MySQL on a new server:
First: sudo ...
- 153
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1
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317
views
MTU specified in netplan is not applied at boot
My netplan file looks like so:
network:
version: 2
renderer: networkd
ethernets:
eth0:
addresses:
- 169.254.1.1/24
mtu: 9000
After boot the eth0 interface takes the ...
- 409
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votes
0
answers
80
views
Not able to access server from specific other server
I'm running a VPS with Ubuntu 18.04.6 LTS (GNU/Linux 4.15.0 x86_64) accessible with example000.com.
Since some hours I'm suddenly not able to access this server from my other server example111.com.
...
- 153
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0
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103
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Changing folder ownership/permission has no effect
I'm using an ubuntu VM machine on Azure. The goal is to allow user1 to to upload files to /folder1/folder2 through a scp command. Right now I get Permission denied.
I run the commands directly on the ...
- 101
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0
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223
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Folder (inode/directory) some contents unreadable
At Ubuntu 18.04.6 LTS I checked with files and got this:
Name: /
Type: Folder(inode/directory)
Contents: 403,420 items, totalling 124.9 GB
(some contents unreadable)
128.0 GB used
94.7 GB free
Total ...
0
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0
answers
125
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How to block all connections on all ports using iptables?
I am trying to protect myself from ddos and limiting all users with more then 5 connection request to connect to my server.
I am trying to use this one, but it is not working, it actually blocks even ...
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1
answer
39
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Used 100% disk but the used number shown is wrong
My /dev/sdb2 partition used up all it's space but the Used number is less than total Size of the partition in large number. I don't know what is happening.
How to check where was my missing 30Gb?
...
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1
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110
views
How to exclude 1 ip from iptable rules?
I want to block all ip's with > 200 connections to access my server with this rule:
iptables -A INPUT -p udp --dport 100:65535 -m connlimit --connlimit-above 200 -j REJECT
but at the same time I ...
- 1
0
votes
0
answers
64
views
Script that will scan for number of connections and ban those above 100
since I lately have some DDOS attacks, i need help in creating the script that will do following:
-Screen the IPs on all ports with total number of connections using netstat
-Ban all IP's that are ...
- 1
0
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0
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34
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System broke, most things aren't opening
In my system many apps are not working the terminal fails to start and Settings disappeared from app menu. I tried searching for the
settings app in file explorer and there's only one option in it.
I ...
0
votes
0
answers
885
views
Offline Installation of Apache/2.4.54 on Ubuntu18.04
I have tried installing Apache 2.4.56 from source. However, I want to install Apache/2.4.54 on Ubuntu18.04, offline(without accessing internet)
Is there any way to download apache2 and its ...
