uduntu 22.04px4

### Ubuntu 22.04 LTS x64 Installation and Usage Information #### System Requirements For installing Ubuntu 22.04 LTS on an x86_64 architecture, the system should have at least 4 GB of RAM and 2 vCPUs to ensure smooth operation[^2]. #### Downloading ISO Image To begin with, one needs to download the official Ubuntu 22.04 LTS ISO image from the Canonical website or any trusted mirror site. #### Creating Bootable USB Drive A bootable USB drive can be created using tools like Rufus (on Windows), Etcher (cross-platform), or Startup Disk Creator (on Linux). This step is crucial as it allows users to start the installation process by booting from this USB device. #### Installing Ubuntu 22.04 LTS Once booted into the live environment via USB: - Choose "Install Ubuntu" - Follow through language selection, keyboard layout setup, updates during installation options. - Select type of installation—either alongside existing operating systems or erase disk and install only Ubuntu. - Provide user account details including name, computer's name, username, password etc. #### Post-installation Configuration After completing the installation procedure successfully: ##### Updating Package Lists It’s important to keep software up-to-date. Run these commands after logging in for the first time: ```bash sudo apt update && sudo apt upgrade -y ``` ##### Installing Additional Software Packages Additional packages such as development tools may also need to be installed depending upon requirements. For instance, when setting up cross-compilation toolchains targeting ARM architectures like AArch64 used in Raspberry Pi devices, specific versions of GCC and G++ compilers could be required: ```bash sudo apt install gcc-9-aarch64-linux-gnu g++-9-aarch64-linux-gnu ``` If there are broken dependencies encountered while performing installations, fixing them becomes necessary too: ```bash sudo apt --fix-broken install ``` ##### Setting Up SSL Certificates Using Let's Encrypt When configuring services that require secure connections over HTTPS, obtaining certificates plays a vital role. Tools like `certbot` make acquiring free TLS/SSL certificates easier under certain conditions: ```bash sudo snap install core; sudo snap refresh core sudo snap install --classic certbot sudo certbot --nginx ``` During configuration prompts provided by Certbot, inputting domain names associated with email servers will finalize certificate issuance processes[^3].