Sunday, April 9, 2023

How to Fix a VirtualBox Aborted Error with Blank Screen in Ubuntu

Have you ever encountered an issue where your Windows virtual machine just suddenly aborted and left you with a blank screen? This can be a frustrating experience, especially if you were in the middle of an important task or project. Luckily, there's a simple solution to this problem: installing the VirtualBox Extension Pack.

VirtualBox is a free and open-source virtualization software that allows you to run different operating systems on your computer. However, in order for VirtualBox to emulate the VM's devices correctly, it needs the same version of the VirtualBox Extension Pack to be installed. This is why you might have encountered an aborted VM with a blank screen – the extension pack was missing.

To fix this issue, you'll need to follow a few simple steps:

Step 1: Check your VirtualBox version

Open the VirtualBox Manager and go to Help > About VirtualBox. This will show you the version of VirtualBox that's currently installed on your system. Make note of this version number, as you'll need it for the next step.



Step 2: Download and install the VirtualBox Extension Pack from here based on your ubuntu OS version.

Now that you know your VirtualBox version, you need to download the same version of the VirtualBox Extension Pack. You can find the download link for the extension pack on the VirtualBox website. Make sure to download the correct version that matches your VirtualBox installation.

Once the download is complete, double-click the .deb file to start the installation process in Ubuntu. You'll need to accept the license agreement and follow the prompts to complete the installation.

And that's it! Once the VirtualBox Extension Pack is installed, and you restart the VM, your Windows virtual machine should no longer abort with a blank screen. You can now continue working on your projects and tasks without any interruptions.

In conclusion, VirtualBox is a powerful virtualization tool that can greatly improve your productivity by allowing you to run multiple operating systems on a single computer. However, it's important to ensure that you have the correct version of the VirtualBox Extension Pack installed to avoid any issues with your virtual machines. By following the simple steps outlined above, you can quickly and easily fix any aborted VMs with a blank screen.

Wednesday, April 5, 2023

qpois function in R

"The qpois function provides the maximum number of events that can occur within a given time interval, given a certain mean number of events and a 95% confidence level. Essentially, it tells us the upper limit of events that are likely to occur within that time interval based on statistical analysis."