Questions tagged [20.04]
Eighth LTS (Long Term Support) release of Ubuntu, code-named "Focal Fossa". Released on April 23, 2020. Will reach End of Standard Support (ESS) in April 2025. Only use this tag for version-specific questions.
13,373
questions
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35
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Not enough free disk space on /boot
Not able to install updates for Ubuntu, or even remove older packages from /boot
Many answers suggested good solutions, but again I am not able to even remove older packages from /boot.
Not enough ...
0
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0
answers
14
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I cannot install libtool on my pc
When am trying to install it tells me unable to fetch archives,maybe run apt-get update or try with --fix-missing?
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11
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How to start jupyter notebook (or run 1 command) when GCP Starts up
I have a GCP instance. Currently, I login using the username@ip address with a SSH file for auth.
Then once I login using terminal, I run this command manually
jupyter notebook --ip=0.0.0.0 --port=...
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votes
1
answer
36
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Not able to update a package [duplicate]
I have been told that the newest package 1.8.2 is available.
But I am not able to upgrade m17n-db package.
# apt-get --only-upgrade install m17n-db
Reading package lists... Done
Building dependency ...
- 221
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0
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30
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Cannot perform dist upgrade [duplicate]
I'm getting the following error when trying to run sudo apt dist-upgrade -y and upgrade from 22.04 to 23.04
Calculating upgrade... Error!
Some packages could not be installed. This may mean that you ...
- 101
1
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0
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37
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rc-local.service: Failed with result 'exit-code'
I want to active UDPGW port for calling and gaming in my VPS server, I did this commands for my previous two VPS and it worked fine.
sudo wget -O /usr/bin/badvpn-udpgw "https://raw....
- 11
0
votes
1
answer
22
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Dell g15 5520 laptop can not connect to external monitor
I have a dell G15 5520 laptop running ubuntu 20.04 and I have a problem connecting an external monitor(DELL).
Bios version: 1.13.2
What should I do?
I tried:
sudo ubuntu-drivers autoinstall ,then ...
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2
answers
33
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What is the safest and most efficient way to remove multiple applications installed by 'sudo apt install gnome-*'?
I Accidentally ran sudo apt install gnome-* in terminal and a lot of applications were installed in my system. I would like to know if there is a way to get rid of all those apps that were installed ...
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32
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WiFi frequently disconnected only on my laptop (Ubuntu 20.04)
I am facing this problem for a while, and I tried many solutions that have been provided online like:
set wifi.powersave to equal 2.
disable the ipv6.
access this file: sudo cat /etc/NetworkManager/...
0
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0
answers
38
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Is there anyway to block/whitelist certain ASN number on Ubuntu?
I knew how to configure ufw or (iptables), but how do I whitelist certain ASN number on Ubuntu?
lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 20.04.6 LTS
Release: 20.04
Codename: ...
- 139
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1
answer
50
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SSD disk space loss after running Laravel Jobs - any solutions?
Overview
Day before I had 20GB free space. Then I run laravel job and I got 0, then I deleted some files, cache and etc. and somehow I got 20GB more. Next day I run this jobs one more time and I got ...
- 1
1
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0
answers
11
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pam_tally2 locking everyone out after configuring common-auth file on Ubuntu 20.04
I am trying to configure user lockout after 3 unsuccessful attempt. I found instructions on the internet but I always end up with the same problem: after modifying /etc/pam.d/common-auth to include ...
- 123
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0
answers
10
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Send volume command when simulated headset
I use that example to setup my computer as a simulated headset:
https://unix.stackexchange.com/questions/205378/use-desktop-as-bluetooth-headset
It works properly, I can connect my smartphone to my ...
1
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0
answers
24
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Ubuntu 22.04.2LTS HDMI to TV [almost] No Sound
I recently installed 22.04.2, dual boot with Windows 10 on my laptop [HP 250 G6 Notebook, I5 2,5Ghz, 8GB RAM] - HDMI connection to a Samsung TV. This works fine with Windows but not Ubuntu. I've tried ...
- 11
3
votes
1
answer
90
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Unable to create SystemD user service "Failed to connect to bus: Permission denied"
Trying to run
systemctl --user start my-service.service
on Ubuntu server 20.04 as a non-root user I get
Failed to connect to bus: Permission denied
Even just
systemctl --user
gives the same error.
...
- 308
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0
answers
14
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Ubuntu 20.04 loading ALSA source in PulseAudio fails on startup but works after restarting PulseAudio
I am trying to set my default source to be a virtual dsnoop device (dmic_sv) defined in ~/.asoundrc, and I have added to ~/.config/pulse/default.pa the following lines:
# Tried placing the line below ...
- 101
-1
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0
answers
12
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Network share folder issue
This ver20.04,22.04,23.04 share file is not OPEN can transfer files from another system Ubuntu .ple give me the solution.
0
votes
1
answer
36
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Ubuntu display gone after reboot [closed]
I am a newbie to Ubuntu. I was working and suddenly got stuck then I restarted my PC but no display after rebooting. All hardware is working fine. Seems like the display driver has an issue. But now ...
- 1
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0
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29
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Errno13: Permission denied: ‘/proc/71128/task/71128/children - Lutris cant install LeagueOfLegends
I used Ubuntu 20.04LTS and user Lutris When I install League of Legends I get the following error:
/home/name/snap/lutris/70/.local/share/lutris/runtime/winetricks/winetricks --unattended win10
Start ...
- 1
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0
answers
29
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bluetooth is not turning on
My Bluetooth does not turn on no matter what I do
Bluetooth off although the bar says it is on
This is the output of "sudo systemctl status bluetooth"
● bluetooth.service - Bluetooth ...
0
votes
0
answers
19
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Fixing grub-efi-amd64-signed error
apt upgrade on Ubuntu 22.04 failed with an error from grub-efi-amd64-signed.
mount: /var/lib/grub/esp: special device /dev/sda15 does not exist
/dev/sda15 does not and has never existed on this ...
- 101
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0
answers
23
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Upgrade from 18.04 to 20.04 error "Could not calculate the upgrade"
While trying to upgrade from 18.04 to 20.04 I am getting the following message
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
If none of this ...
0
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0
answers
15
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Wake On LAN does not work when PC shut down - only when it is suspended
For some reason Wake Up On LAn doesn't work for me in Ubuntu when PC was shut down but only when it was put to sleep using
sudo systemctl suspend
My network card does support wake on lan
I also ...
- 1
0
votes
1
answer
59
views
Linux terminal not working; no file paths are showing with no response to keyboard inputs
My terminal in Ubuntu is not working, it is not responding to keyboard nor does it shows any file paths as well. This issue is reflected is in the VS Code terminal as well.
0
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1
answer
31
views
Cann't reach pypi.org
Context:
I have 2 machine:
VPN Server (Ubuntu 20.04)
Host machine (Ubuntu 22.04)
Both of them connected throught WireGuard VPN and Host transfer all his traffic throught VPN Server.
On Host machine I ...
0
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0
answers
38
views
Is SysRq still a thing?
Reading this: https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html
I've been trying to use this on an ubuntu server VM to see what I can do, but I can't find the key combo. Could it be that ...
- 225
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0
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35
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Error when getting information for file "folder/": input/output error
I've searched for some similar questions for my problem but couldn't find solution. I've flash drive that I copied some files from window OS for a long time ago,and I cannot open them on ubuntu, ...
- 101
2
votes
1
answer
95
views
"Low" internet speed
could you help, please? I have Gbit internet and when I plug in a cable without the router I have this speed (800-900), but when I connect to WiHi I have only (150-200). Could you suggest what could ...
- 23
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0
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22
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How can I get php 8.1 and integrate a web server for nano node?
My aim is to run nano node monitor cli, and I am really confused.
Node fetches the ledger files (2nd day now) and seems to work with Docker, but no monitoring is possible unless I get some help to ...
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0
answers
41
views
in sudo update (after a node instalation) i get all these .. I really don't understand [duplicate]
E: Could not get lock /var/lib/apt/lists/lock. It is held by process 71076 (apt-get)
N: Be aware that removing the lock file is not a solution and may break your system.
E: Unable to lock directory /...
1
vote
1
answer
52
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Upgrade from Ubuntu 20.04 to 22.04 failed [duplicate]
I am fighting to upgrade my Ubuntu and I am dealing with troubles. I tried to do it with sudo do-release-upgrade and also from the Software Updater. I tried out a lot of things (here on StackExchange, ...
- 11
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0
answers
21
views
Issue Installing Ubuntu 20.04 on Dell Optiplex 7080 - Disks Not Detected
I encountered a problem while attempting to install Ubuntu 20.04 on a Dell Optiplex 7080.
During the installation process, I received an installer error:
installer error
After rebooting the PC, I ...
- 1
0
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0
answers
43
views
What default screensaver does a freshly installed Ubuntu 20.04 or 22.04 have, and how to check if it is active?
I had the impression that Ubuntu had Gnome screensaver or xscreensaver by default. But when I tried gnome-screensaver-command --query, I'm shown the error "Command 'gnome-screensaver-command' not ...
- 939
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32
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Old IP displayed in route table after Ubuntu image clone on new server
I have cloned an existing Ubuntu image off of our AWS server, upgraded to 20.04, and am trying to configure the connection to the outside world. I've been running into a lot issues on the frontend ...
- 11
1
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0
answers
29
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ubuntu 20.04 kernel downgrade from 10.15 to 10.13 fails on update-grub
Team,
I need to downgrade my kernel and i am stuck at this step. any hints? please observe my system details and what all i did and stuck at sudo: upgrade-grub: command not found
I want to have Ubuntu,...
- 111
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0
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28
views
User Issue on Ubuntu 20.4 VM
I am attempting to follow posted instructions for a class and have the SEED Ubuntu VM installed and able to run. The default SEED user seems to work just fine, however whenever I attempt to follow ...
- 1
0
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0
answers
14
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Autoinstall is failing for Ubuntu Server IoT 20.04
I am trying to automate Ubuntu Server 20.04 IoT.
First thing is it doesn't generate autoinstall-user-data file for some reason.
Then i used a very basic user-data(added below). It starts installation ...
- 101
1
vote
2
answers
84
views
getting permission denied when ssh to an instance from ubuntu 23.04 wsl
I recently updated in Ubuntu 23.04 wsl. I use the same certificate for both a very old 2017 aws linux instance and also for new aws linux instance. I am not able to ssh to the old 2017 aws linux ...
- 445
0
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0
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38
views
Change the UUID which the system selects for root partition
After investigation, I realized the UUID of the root partition / was appearing at least in 3 different locations:
/boot/efi/EFI/ubuntu/grub.cfg
/proc/cmdline
/etc/fstab
How do I change the UUID ...
1
vote
1
answer
67
views
Select default boot partition after cloning a partition (Ubuntu 20.04)
I have two disks each with two partitions, one SSD (/dev/sdb) which had the main boot partition and another HDD (/dev/sda) for backup.
Then I cloned the SSD's main partition (which had the boot) with ...
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0
answers
20
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Unable to install real time kernel in ubuntu 20.04 after following 2 guides and different forum answers
I' have been trying to install a real time kernel for my ubuntu 20.04, but after 2 days reading othe user issues and following guides, I always end in the same error when compiling the kernell. I ...
3
votes
1
answer
346
views
Can I rollback an aborted Jammy dist upgrade?
I killed the do-release-upgrade before everything downloaded. I'm running ok, but for now I can only go forward with the release upgrade. I can't get any focal updates. I would like to wait a bit ...
0
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0
answers
14
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Facing Invalid Package Information Error while upgrading Ubuntu 20.04 to 22.04.2
I have Ubuntu 20.04 installed on my PC, and I'm encountering an error "Invalid Package Information" while trying to upgrade it to 22.04.2. During the upgrade, a message appears stating: &...
- 167
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1
answer
33
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How to get pythonpath to work for the python module in openmodelica Buildings running Ubuntu 20
I am having problems running my model in openmodelica on Ubuntu 20. I tried exporting the path following the documentation and installed libpython3.8-dev.
https://build.openmodelica.org/Documentation/...
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0
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33
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RTL88x2BU driver is compatible with the RTL8822CU chipset?
RTL88x2BU driver is compatible with the RTL8822CU chipset ?
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0
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44
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Cannot SSH from Windows 10 to Ubuntu 20.04 server guest in VirtualBox
Trying to set up a Ubuntu 20.04 server guest in Windows 10 VirtualBox (sorry, don't know if it's a Ubuntu question or a VB question) which I can SSH into from Windows. I've done it with CentOS ...
- 1
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0
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29
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/dev/sda2: UNEXPACTED INCONSISTENCY; RUN fsck MANUALLY [duplicate]
Hope all are doing well
I have a Linux Ubuntu 20.04 LTS on my laptop.
During the boot, I got the error as.. "/dev/sda2: UNEXPACTED INCONSISTENCY; RUN fsck MANUALLY "
I guess some of the ...
0
votes
0
answers
13
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Ports is not working
i installed ubuntu in VMware EXsi 5.5.0 installed webmin and virtualmin, i enabled the ufw, set ports ,installed apache, but with write ip and then port after it, its not opening, i have checked each ...
0
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1
answer
34
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Ubuntu's sudden root storage volume is full ( 20.04 )
I have recently installed Ubuntu 22.04 as a dual boot, for the third time when I turned on the system, the system did not enter the desktop anymore; After restarting it twice, it entered the desktop ...
- 3
0
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0
answers
24
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Adjust the screen brightness automatically Ubuntu 22.04
I am using currently Ubuntu 22.04, and I can no more find the option to adjust automatically the screen brightness, unlike previous versions of Ubuntu.
I installed all the updates until today's date.
...
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