Latest Ubuntu related questions

Score: 0
ianski avatar
How do I clear the GNU screen command screen?
nl flag

Running "screen" for example with:

screen /dev/ttyUSB0 115200

How do I clear the screen once in a while?

Score: 1
Michael Waterman avatar
Cubic install is different than original... why?
ck flag

Making my first steps in automating the installation of Ubuntu. Found the Cubic package being recommended and I'm trying it out at the moment.

One thing I noticed on one of the first runs was that there is a difference in output. Let me explain:

I always choose the minimum installation for Ubuntu and creating a custom ISO with Cubic adds around 40+ extra packages, most visible is Thunderbird, even t ...

Score: 0
Michael Puckett avatar
Use pin code to login instead of long password 20.04
mx flag

I'd like to be able to log on and use a 4 digit pin code. I've just started using ubuntu and I'm on version 20.04. Also, much of the command line stuff is confusing to me but I am great at doing copy and paste!

Score: 0
Mufassir avatar
I installed ubuntu 20.04 on my HP Envy 13. I am using it on dual boot. I am unable to enroll my fingerprint. How to solve the problem?
eg flag

Whenever I try to enroll using fprintd-enroll, it shows this:

Using device /net/reactivated/Fprint/Device/0
failed to claim device: GDBus.Error:net.reactivated.Fprint.Error.Internal: Open failed with error: Device 06cb:00e7 is already open

I tried a lot of solutions, but none of them worked. I have tried fwupd upgradation, but it doesn't help, same thing happens.
Also, I am new to Ubuntu, any help ...

Score: 1
LemongrabThree avatar
Ubuntu 20.04 Dual Boot snd_hda_intel Audio Buzzing
ke flag

I recently installed 20.04 alongside W10 on a Dell Inspiron 15 3501 and there's a buzzing sound alongside all the audio. It sounds like all sound is coming from inside a nested pair of tin cans, much like a lot of the audio in Half-Life. It also resembles the buzzing of a CRT screen.

Best progress so far: I installed alsa-utils and played around with hdajackretask. It shows two codecs, one called "In ...

Score: 1
Lalit Fauzdar avatar
Can't install mariadb-server - unmet dependancy mariadb-server
us flag

I was following a setup process of the ERPNext from here in a fresh Ubuntu 20.04 server but I'm stuck at command sudo apt -y install mariadb-server libmysqlclient-dev as I can't install mariadb in it.

The issue is

The following packages have unmet dependencies:
 mariadb-server : Depends: mariadb-server-10.6 (>= 1:10.6.4+maria~hirsute) but it is not going to be installed

It was initially showing ...

Score: 0
geekygeek avatar
Can't connect to vsftpd on port 21 when trying to establish FTP connection
us flag

I have installed vsftpd on my Linux Ubuntu 21.04 instance using the following:

sudo apt-get install vsftpd

I have enabled FTP in my ufw firewall using the following:

sudo ufw allow ftp

My /etc/vsftpd.conf file contains the following:

# Example config file /etc/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more us ...
Score: 1
Jefferson Jerome avatar
WMI failed to parse WDG method
cn flag

I use a Dell Inspiron 3501 and I was able to install Ubuntu 21.04 successfully. I did

sudo apt update 
apt upgrade 

and restarted the OS. But I am getting this error

wmi failed to parse wdg method.

Kindly help.

Score: 0
thomas.tm avatar
Rewrite / relay problem with postfix configuration and sender dependent relayhosts - ISP
us flag

I have "Ubuntu 20.04.3 LTS" on a raspberry pi 4, and I'm trying to config postfix to use sender dependent relayhosts.

Postfix is mail_version = 3.4.13 and i have a dynamic IP.

The schema looks like this:

  1. local user sends email to postfix (local emailserver)
  2. postfix rewrites FROM Address
  3. dependent on the rewrite FROM Address pick the right relayhost
  4. submits the mail to the relayhost via port 587

 ...

Score: 1
lofidevops avatar
How can I install two versions of .NET for Rider?
us flag

I have installed both Rider and dotnet-sdk with Snap, so that I can debug .NET projects. However, I now need to work on an older solution that runs on an older version of .NET.

How can I install another version of .NET and still work on both projects?

Score: 1
Victor avatar
Cant make a gui icon to start a terminal command
cn flag

I want to make a link on my desktop that just executes a simple Linux command. When I search the internet all I find are ways to start a GUI interface from within a shell.

Is there a tool to make such a link?

Score: 2
How to get notified about firmware upgrades?
fr flag

I'm lucky enough to have found a laptop that can use the Linux firmware updating software (fwupdmgr). This is a Dell Latitude 5510, which according to the Linux-friendly salesperson is even certified for Ubuntu 20.04 LTS.

Using ssh to connect to this machine gives me information I don't get anywhere else, like this:

~$ ssh puta
Welcome to Ubuntu 21.04 (GNU/Linux 5.11.0-31-generic x86_64)

 * Docume ...
Score: 0
SAFIQUL ISLAM UZZAL 203-15-144 avatar
can not extend /dev/sda6 (ext4 /) with gparted

This is the image of my gparted in ubuntu I give dual boot in my computer with ubuntu and windows10. Now I want to keep ubuntu only. So, following some different articles I find I can't expand the Ubuntu partition to take up the space freed by removing the Windows partition. I tried to do the things providing in this link: How to extend ext4 with gparted? but nothing seems to be working.

Score: 1
Alex avatar
Color scan problem with HP LaserJet MFP on Ubuntu 18.04
pr flag

My system is:

  • HP LaserJet MFP m236dw
  • Ubuntu 18.04
  • HPLIP ver. 3.21.8

hp-scan gives gray picture up to 300 dpi with no problems.
However, in color mode "hp-scan -m color" it gives the following error:

Warming up...
Scanning...
error: SANE: Error during device I/O (code=9)
Closing device.

Doesn't matter if USB or Network connection.
I've tried all solutions I could find on the Internet.
I tried s ...

Score: 2
NoOneIsHere avatar
Ubuntu randomly freezes [20.04]
cn flag

While using my computer normally, X will randomly freeze: No screen updates are performed and no input works but audio still plays normally if it was playing when the freeze occurred. It happens incredibly often and the only solution I've found is SysRQ-rebooting or physically pressing the power button to shut down. I'm running 20.04.3 with everything fully updated (apt upgrade does nothing).

Sys ...

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