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1500 questions
122
votes
6 answers

Upgrade Ubuntu in WSL2 from 20.04 to 22.04

I'm new to WSL2-Ubuntu. My computer already had preisntalled the 20.04 version, but I saw there's already the 22.04 version, so I was wondering if it was worthy to have the new one. If so, how can I upgrade it?
alma_
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122
votes
4 answers

Can't close Authentication Required window after login

I am using Ubuntu 20.04(Gnome3.36) and need help with this: The Authentication Required window is stuck right after logging in and I can't close it. I tried using xkill to close the window but it didn't close, I think xkill doesn't recognize the…
Mandi
  • 2,116
122
votes
31 answers

External monitor not detected on Ubuntu 18.04

After upgrading to Ubuntu 18.04, my laptop has been unable to detect/use an external monitor attached via HDMI. Even when plugged in, the "detect displays" button within the default settings app doesn't do anything. Here is the output from…
PullJosh
  • 1,331
122
votes
9 answers

USB turn write protection off

I have a USB which is write protected: dmesg | tail [10098.126089] sd 7:0:0:0: [sdb] Write Protect is on [10098.126098] sd 7:0:0:0: [sdb] Mode Sense: 23 00 80 00 [10098.126779] sd 7:0:0:0: [sdb] No Caching mode page present [10098.126788] sd…
noob
  • 1,266
121
votes
8 answers

How do I install the Cinnamon Desktop?

I have read that there is a new Gnome-2 like interface called Cinnamon produced by the Linux Mint developers. Is this available for Ubuntu users - and if so how do I install it?
fossfreedom
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121
votes
3 answers

What is the difference between "man" and "info" documentation?

Regarding man-pages and info help documentation: Why do two such similar sources of documentation exist? Sometimes a man-page is available and the info is not; or vice-versa. I haven't yet latched on to the rhyme and reason behind it. Maybe there…
Peter.O
  • 25,251
121
votes
6 answers

Use chown to set the ownership of all a folder's subfolders and files?

How can I use the chown command to change the ownership of all a folder's subfolders and files?
TellMeWhy
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121
votes
5 answers

Unity: How do I revert Alt-tab behavior to switch between windows on the current workspace?

Enabling Bias alt-tab sorting to prefer windows on the current viewport as described here made no difference. How can I get back the exact same behavior as 11.04, so that alt-tab only switches between windows on the current workspace? Simply…
chris.ritsen
  • 1,313
121
votes
7 answers

How to automatically fetch missing dependencies when installing software from .deb?

I'm trying to install MySQL Workbench on my Ubuntu box (11.04). The website has a Ubuntu .deb available for download (for 10.10 and 10.04 so I chose 10.10). However, sudo dpkg -i mysql-workbench-gpl-5.2.34-1ubu1010-amd64.deb yields: (Reading…
Jonik
  • 7,448
121
votes
8 answers

What are the system requirements for each flavour of Ubuntu Desktop?

I'm thinking about installing Ubuntu Desktop, but I don't know what flavor is the best for my system. What are the minimum and recommended hardware requirements? What kind of CPU? How much memory? Should I have Hardware Acceleration? What flavor…
Braiam
  • 69,112
121
votes
8 answers

Generate md5 checksum for all files in a directory

I would like to create a md5 checksum list for all files in a directory. I want to cat filename | md5sum > ouptput.txt. I want to do this in 1 step for all files in my directory. Any assistance would be great.
Walter Wayne Leutwyler
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121
votes
2 answers

How can I use RAM storage for the /tmp directory and how to set a maximum amount of RAM usage for it?

After seeing the comment by Anonymous on the question How is the /tmp directory cleaned up?, I found that it would be a great idea to implement on my system, since I have 16GB of RAM and I never used all of it. My temporary files never get written…
Dan
  • 14,180
121
votes
5 answers

What's the difference between a Long Term Support Release and a Normal Release?

What are the differences between an Ubuntu Long Term Support release (LTS) and a normal release?
Olivier Lalonde
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120
votes
4 answers

How do I deal with "unauthenticated sources" errors in the Software Center?

Any install that I'm trying through the Software Center is telling me: Requires installation of untrusted packages: The action would require the installation of packages from not authenticated sources. I did an apt-get update from the command…
b. e. hollenbeck
  • 1,347
120
votes
12 answers

MySQL GUI Tools

Does anyone have any good ideas as to native MySQL GUI clients for Ubuntu? So far I've tried MySQL Workbench, which never seemed to work properly, phpMyAdmin which I found a bit slow, and Navicat which is a windows port and runs under wine, but none…
richzilla
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