Christopher Juckins

Ubuntu 26.04 new install May 2026.

• Use 32MB Video memory for Guest Additions full screen (or more if needed).

Used Default selection for apps. Skip additional software.

Install XFCE with these notes

• Remember to reboot after following the steps.

Set root password

sudo passwd root

Using GUI settings, turn off screensaver

Add my .bashrc and my alias for apt updates:

alias au='apt update; apt -y upgrade'

Install network stuff to run ifconfig, etc:

sudo apt install net-tools

Change hostname

For Guest Additions:

sudo apt install gcc make perl

Installed Guest Additions CD, ran Linux script. Said there was an error but upon VM reboot the guest additions were installed.

Other packages to install:

sudo apt install vim gnome-terminal  

Fix SSH:

sudo apt install openssh-server
sudo systemctl start ssh
sudo systemctl enable ssh

Disable Firewall

Customize grub to show boot options and keep messages on screen during boot:

cd /etc/default
sudo cp grub grub.YYYYMMDD
sudo vi grub

• Comment out: GRUB_TIMEOUT_STYLE=hidden
• Instead of a value of 0, modify GRUB_TIMEOUT=5
• Comment out: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
• Run sudo update-grub and then reboot to test

Set up GMail as a Relay

Install and test crontab

Set alias vim to vi and copy over .vimrc from another machine. Include set mouse=

Enable ESM Apps to receive additional future security updates - see https://ubuntu.com/esm or run: sudo pro status

apt purge light-locker and reboot (disable screensaver / blanking)

Move Unifi Controller using steps below

• Install UniFi using the Easy Installation Script
  • Make Backup of Unifi on old VM using script above
  • Shutdown old VM and new VM
  • Change IP address of new VM to match that of old VM (use MAC if DHCP)
  • Start new VM
  • Restore UniFi config from backup