Ubuntu

How do we show or hide the GRUB boot menu at boot time in Ubuntu operating systems?

botond published 2022. 05. 23., h - 13:05 time
GRUB is a boot program that starts the selected operating system when you start your computer. For Ubuntu Linux systems, the GRUB menu will only appear by default if you have more than one operating system installed on your computer, giving the user the option to select the system they want to boot. However, sometimes you may need to display the GRUB menu for an instance of Ubuntu. In this short description, we'll look at how to bring up the GRUB menu for a single Ubuntu system.

Ubuntu 22.04 LTS (Jammy Jellyfish) UEFI Mode Installation

botond published 2022/05/21, Sat - 10:35 time
Ubuntu 22.04 LTS (Jammy Jellyfish) was officially released on April 2022, 21, and will receive software support through LTS (Long Term Support) for another 5 years, meaning we won’t have to worry about updates coming until April 2027. The operating system includes the GNOME 42.0 desktop environment. In this description, it is installed on a 64-bit machine running UEFI, where a hard disk with a GPT partitioning scheme is used for this purpose.

Dual boot: Installing Windows 11 and Ubuntu 21.10 (Impish Indri) operating systems in UEFI mode on two partitions on a hard disk (page 2)

botond published 2022/03/19, Sat - 00:31 time
In this dual boot description, we first install a Windows 11 operating system and then an instance of Ubuntu 21.10 (Impish Indri). It is installed on a 64-bit UEFI-based machine, where 64-bit systems are mounted on two partitions on a hard disk with a single GPT partitioning scheme. On this page, we will install the Ubuntu 21.10 (Impish Indri) Linux operating system on the rest of the hard disk, and then check the storage status.

How to install PHP 8 on your Debian or Ubuntu server

botond published 2021/02/06, Sat - 15:49 time
PHP is one of the most common server-side scripting languages ​​for building dynamic web pages, making it an essential part of our web server. The latest major version of this, PHP 2020, was released on November 26, 8. In this tutorial, we will look at how to install PHP 8 on an Ubuntu 20.04 (Focal Fossa) LAMP server and a Debian 10 (Stretch) perfect server, and how to you can configure it to work in both systems in the Apache environment.

How to shrink image files of our VirtualBox virtual machines on Linux and Windows systems

botond published Jan. 2020, 12, 02:20 p.m. time
VirtualBox allows you to run virtual machines on your computer that share the computer's hardware resources with the host operating system. VirtualBox also provides the ability to use dynamically growing storage, which allows you to create drives that are (virtually) the same fixed size inside, but the physical image files themselves are only a few megabytes in size when created and grow depending on the amount of data loaded. This is unfortunately not true backwards, so if you delete something from the virtual machine, for example, the size of the physical image file on the virtual storage device will unfortunately not be reduced. In this description, we will look at how to manually shrink the dynamically growing image files of our VirtualBox virtual machines to the size actually used on Linux and Windows systems.

Install Ubuntu 20.04 LTS (Focal Fossa) LAMP Server v1.0

botond published Jan. 2020, 10, 21:18 p.m. time
With the help of LAMP systems, we can run dynamic web pages on our server or even on our home computer. I have previously built LAMP servers for Debian 8 (Jessie), Debian 9 (Stretch) and Ubuntu 18.04 LTS (Bionic Beaver), and in this description we will install the LAMP server components for the Ubuntu 20.04 LTS (Focal Fossa) Linux distribution.

How to reset our forgotten root password on our Linux system

botond published March 2020, 10, Thu - 08:13 time
It is not common to log in as root, so we do not use its password for a long time. We may forget and the sudo command is not available. If this happens, let's look at two ways to recover your forgotten root password on Debian and Ububtu.