UbuntuHandbook

Ubuntu 20.04.6 Released! Fix Secure Boot & Integrate Ubuntu Pro

Last updated: March 24, 2023 — Leave a comment

The Ubuntu team announced the 6th point release for Ubuntu 20.04 LTS. According to the release note, Ubuntu 20.04.6 fixed the Secure Boot issue for the amd64 installer:

Unlike previous point releases, 20.04.6 is a refresh of the amd64 installer media after recent key revocations, re-enabling their usage on Secure Boot enabled systems.

The release also includes many security updates, and backports from Ubuntu 22.04 LTS. The “Software & Updates” has been updated to replace Livepatch tab with Ubuntu Pro.

Other changes include:

add meta package to improve support for Lenovo ThinkCentre M70t/M80t Gen 3, Lenovo ThinkPad P14s/T14 Gen 2a, Lenovo ThinkPad T14s/X13 Gen 2a, etc devices.
fix slow refresh rate with AMD GPU Screen output in reverse prime mode.
add GSettings power management keys for AD SYStem integration.
fix samba interoperability with Windows 22H2 client.
fix issue that starting a salted session fails when using an RSA key in FIPS mode
add support for open kernel module or driver in nvidia-515
support EM120/160 firmware update
add sdio firmware for qca9377 wifi module

See the changelog for more changes in Ubuntu 20.04.6.

Download Ubuntu 20.04.6

For earlier version of Ubuntu 20.04, just open Software Updater and install all available updates will bring you to the new Ubuntu 20.04.6. For the .iso image, just go to this page.

In Howtos Ubuntu 20.04

The Fourth Point Release Ubuntu 20.04.4 is out with New / Updated Hardware Support

Last updated: February 25, 2022

The Ubuntu team announced the release of Ubuntu 20.04.4 last night, with hardware enablement stacks, many security updates and bug-fixes.

‘Like previous LTS series, 20.04.4 includes hardware enablement stacks for use on newer hardware. This support is offered on all architectures.’

Linux Kernel 5.15 is still in proposed repository at the moment of writing, while Kernel 5.13 has been distributed for a period of time. So I’m kinda confused about the ‘hardware enablement stacks’.

Perhaps they are the following updates:

Update hardware support for Dell XPS 13 9300.
Add support for Alder Lake P graphics (ADL-P).
Add support for AMD’s Yellow Carp.
Update hardware support for Lenovo ThinkStation P340 Tiny, Lenovo ThinkCentre M70q/M80q/M90q.
Update hardware support for HP Z8 G4 Workstation, HP Z2 Mini G5 Workstation, SFF G5 Workstation, TWR G5 Workstation.
Add support for AMD’s Beige Goby.
Support Foxconn SDX55 T99W175 5G sub6 PCIE and Quectel SDX24 EM160R-GL 4G LTE CAT16 PCIE wireless Modem

In the release, it also enabled native Wayland support for thunderbird package, and restored nautilus copying filenames functionality. See the change summary for more.

How to Get Ubuntu 20.04.4:

For Ubuntu 20.04.x, simply run regular system update via either ‘Software Updater‘ or the command below will bring you to the new release.

sudo apt update && sudo apt upgrade

To verify, either run cat /etc/issue or see the ‘About’ page in settings.

Or download Ubuntu 20.04.4 from the official website:

Download Ubuntu

In Howtos Ubuntu 20.04

Ubuntu 20.04.3 LTS, The Third Point Release is Out!

Last updated: August 26, 2021

The Ubuntu Team announced the release of Ubuntu 20.04.3 LTS today for its Desktop, Server, and Cloud products, as well as official flavors.

Ubuntu 20.04.3 includes hardware enablement stack for use on newer hardware. It’s Linux Kernel 5.11 provided via ‘linux-generic-hwe-20.04‘ package. If you have install the package previously, you should have been running on the Kernel for a period of time.

Besides that, the release includes mainly bug-fixes, installation media, security and stability updates, according to the announcement:

Like previous LTS series, 20.04.3 includes hardware enablement stacks for use on newer hardware. This support is offered on all architectures.

Ubuntu Server defaults to installing the GA kernel; however you may select the HWE kernel from the installer bootloader.

As usual, this point release includes many updates, and updated installation media has been provided so that fewer updates will need to be downloaded after installation. These include security updates and corrections for other high-impact bugs, with a focus on maintaining stability and compatibility with Ubuntu 20.04 LTS.

How to Get Ubuntu 20.04.3 LTS:

If you’re running Ubuntu 20.04 now, simply open ‘terminal’ and run command to install all available system updates:

sudo apt update && sudo apt upgrade

Or install all updates via “Software Updater” will bring you to the new point release.

To verify your Ubuntu edition, run cat /etc/issue, lsb_release -d, or open Settings -> About page.

Alternatively, grab the Ubuntu 20.04.3 disc image from the link below:

Download Ubuntu

In News Ubuntu 20.04

How to Change Login Screen Background in Ubuntu 20.04

Last updated: May 6, 2024

UPDATE: For Ubuntu 22.04 and Ubuntu 24.04, there’s now a graphical tool to do the job, see this tutorial for details.

This simple tutorial shows how to easily change the login screen background wallpaper or solid color in Ubuntu 20.04 Gnome desktop.

There’s no setting option to change GDM3 login screen background unless hacking on the the style sheet file, though it was fairly straightforward to edit the content in Ubuntu 18.04 and Ubuntu 19.10.

In Ubuntu 20.04, you have to extract the css file from current theme’s .gresource file, then edit the content and recompile to create the new .gresource file, and finally set it as default.

Change Login screen background via script:

Thankfully, there are a few scripts in Github to make things simple. And here’s the one that works on Ubuntu 20.04, Ubuntu 20.10, and Ubuntu 21.04.

1.) First open terminal via Ctrl+Alt+T key combination and run command to install the required libraries:

sudo apt install wget libglib2.0-dev-bin

2.) Then download the script via wget command line downloader:

wget github.com/thiggy01/change-gdm-background/raw/master/change-gdm-background

you can also download the script in github web page.

3.) After downloaded the script, add executable permission to the file by running command:

chmod +x change-gdm-background

4.) And finally run command to set your photo image as login background:

sudo ./change-gdm-background /PATH/TO/IMAGE

Besides typing the path to image manually, you can type “sudo ./change-gdm-background” in terminal, then hit space bar to input a blank space, and finally drag & drop the image from file manager to terminal window.

Type user password (no visual feedback) when it asks and hit Enter. IMPORTANT: After successfully changed the login screen background, it asks whether to restart GDM to apply changes. Answer yes will log out current session, so it’s important to backup your work before hitting enter!

3.(Optional) To restore changes, run command:

sudo ./change-gdm-background --restore

Save the script for future use:

If you like the script and want to keep it for user later, run command to copy it to /usr/local/bin directory:

sudo cp change-gdm-background /usr/local/bin

After that, you can run the script any time in terminal window via:

sudo change-gdm-background /PATH/TO/IMAGE

In Howtos login screen background, Ubuntu 20.04

How to Upgrade Ubuntu 18.04 to Ubuntu 20.04 Beta

Last updated: April 4, 2020

Ubuntu 18.04

The Beta release of Ubuntu 20.04 LTS is now available to download, and/or upgrade from an old Ubuntu edition.

Ubuntu 20.04 is a Long Term Support release with 5-year support. It’s scheduled to be officially released on April 23rd.

The new LTS features:

Linux 5.4 Kernel.
Gnome 3.36.
New dark mode setting.
Show computer’s vendor logo on startup.
WireGuard Support out of the box.
And WiFi (RTL8723DE) works out of the box in my HP laptop

Download / Upgrade to Ubuntu 20.04:

The 64-bit desktop and sever images are available to download at the link below:

Download Ubuntu 20.04

Though I would recommend to do a fresh install of the new LTS, you can now upgrade to Ubuntu 20.04 beta (then upgrade to final from beta) directly from Ubuntu 18.04 and or Ubuntu 19.10.

The Beta release may contain bugs. Don’t Do This on product machine before Ubuntu 20.04 goes stable!

1.) First make backup of all your important data.

2.) Disable all third-party PPAs (Software & Updates -> Other Software)

3.) open terminal (Ctrl+Alt+T) and run command to install system updates.