On a regular Linux, we would use this command to restart the computer:
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sudo shutdown -r now |
When we try that in WSL (Windows Subsystem for Linux), we end up with this error message: System has not been booted with systemd as init system (PID 1). Can’t operate. Failed to connect to bus: Host is down Failed to …
On my newly upgraded Ubuntu 24.04 LTS I got this error when I started a Java application: Exception in thread “main” java.awt.HeadlessException: No X11 DISPLAY variable was set, or no headful library support was found, but this program performed an operation which requires it, at java.desktop/sun.java2d.HeadlessGraphicsEnvironment.getDefaultScreenDevice(HeadlessGraphicsEnvironment.java:58) at foo.lj.a(Unknown Source) at foo.lj.(Unknown Source) This problem is …
The upgrade from Ubuntu 22.04 to 24.04 took a lot more effort than I am used to. The option to install to the current LTS version did not show up in the graphical update application and the command line tool ended with this error: Checking package manager Reading package lists… Done Building dependency tree… Done …
As long as your application does not use Blazor, upgrading from .Net 7 to .Net 8 is a walk in the park. The only obstacle we run into while upgrading the user group site was the publish task. Microsoft has made some simplifications to the runtime identifiers that are a breaking change. For .Net 7 …
As I tried to update my WSL (Windows Subsystem for Linux) installation, I run into this error message:
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sudo apt-get update |
E: Release file for http://security.ubuntu.com/ubuntu/dists/jammy-security/InRelease is not valid yet (invalid for another 58min 27s). Updates for this repository will not be applied. How could that be? The difference of nearly an hour got me thinking about …
My Ubuntu machine nagged me with notifications like this one: Pending update of chromium snap: Close the app to avoid disruption (5 days left) That went on for days and I did multiple restarts of my machine where Ubuntu could have updated Chromium. Since I did not want to get a restart in the middle …
After we figured out the problem with the AlwaysOn default setting between Terraform and a Linux environment in Azure, we run into the next Problem: Error: expected site_config.0.application_stack.0.dotnet_version to be one of [3.1 5.0 6.0], got 7.0 Should you ever run into a problem like this, make sure that you update the Azure Resource Manager …
As part of the release build of our user group site, we use Terraform to create a BDD environment from scratch, run the acceptance tests and then destroy the environment to keep the cost down. As we recently switched the BDD environment from Windows to Linux, we run into this error: Error: creating Linux Web …
Every 6 months, Ubuntu releases a new version of its Linux distribution. Since I always forget the command to update my installation, I wrote it down this time. And I added two additional steps you should not miss. First, make a backup. If something goes wrong, you keep your data and may only need to …