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Virtualbox

Oracle Virtualbox released a new maintenance update for the 6.1 series a day ago.

The new release features Linux guest with Kernel 5.5 support, and a shared folder fix for loopback mounting of images.

Other changes in the VirtualBox 6.1.4 include:

  • Fixed a rare issue with ICEBP instruction causing guru meditations on Intel hosts.
  • Fixed macOS Catalina guests failing to boot after upgrading to 10.15.2 onwards.
  • Recent NLS integration and bug fixes for GUI and Qt translation tags
  • Fix isochronous transfers to the VM for xHCI
  • Fix buffer handling, avoiding receiving stale data when the receive queue is flushed.
  • Improve host serial port passthrough handling on Windows host
  • Restore old --clipboard option for modifyvm command
  • macOS host: Use hardened runtime and request the needed entitlements, meeting latest notarization rules which also required moving VirtualBoxVM executable
  • macOS host: Update osxfuse to v3.10.4
  • Windows host: Update Italian translation of installer

  • Windows host: Improve shared folder compatibility with POSIX append semantic
  • Windows host: Restore the ability to run VMs through Hyper-V, at the expense of performance
  • BIOS: Always report non-ATA disks as ready
  • BIOS: Report EFI support through DMI table
  • VGA BIOS: Reduce stack space usage for INT 10h handlers

How to Install Virtualbox 6.142 in Ubuntu:

For 64-bit Ubuntu 16.04, Ubuntu 18.04, Ubuntu 19.04, Ubuntu 19.10, and their derivatives, you can either download the official .deb binary from the link below:

Download Virtualbox for Linux

or install VBox from its official apt repository by running following steps:

1. Open terminal (Ctrl+Alt+T), paste below command and run to add the repository:

sudo sh -c 'echo "deb [arch=amd64] https://download.virtualbox.org/virtualbox/debian $(lsb_release -sc) contrib" >> /etc/apt/sources.list.d/virtualbox.list'

For Linux Mint, you HAVE to replace $(lsb_release -sc) in the command with bionic for Mint 19.x, or xenial for Mint 18.x.

2. Then download and install the repository key via command:

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -

3. Refresh system package cache via command:

sudo apt update

4. Finally install Virtualbox 6.1:

sudo apt install virtualbox-6.1

Uninstall:

To remove it, simply run command in terminal:

sudo apt remove --autoremove virtualbox-6.1

And go to Software & Updates -> Other Software to remove apt repositories.

This simple tutorial shows how to install the latest drop-down terminal Guake 3.7 in Ubuntu 18.04, or Ubuntu 19.10.

Guake is an open-source drop-down terminal for Gnome desktop. While the software in Ubuntu main repository is old, the latest Guake 3.7 was released with following changes:

  • Add tab selection popover in each notebook
  • Add fullscreen hide tabbar option
  • Set custom colors for each terminal tab.
  • Add --select-terminal and --selected-terminal options to Guake CLI
  • Adds an option to display only the last directory on the current path as the tab name.
  • Reworked the tab name selection to use a drop-down menu.
  • Unfullscreen through D-Bus interface, as well as through CLI.
Guake Split Terminal Screen

Guake Split Terminal Screen

How to Install Guake in Ubuntu:

Linux Uprising team maintains a PPA repository that contains the latest packages for Ubuntu 18.04 and Ubuntu 19.10.

1.) Open terminal and run command to add the PPA:

sudo add-apt-repository ppa:linuxuprising/guake

Type user password, no asterisk feedback, when it prompts and hit Enter to continue.

2.) Then run command to install the drop-down terminal application via commands:

sudo apt update

sudo apt install guake

Once installed, launch Guake Preferences from system application menu and enjoy!

If an old version was installed previously, you may first kill Guake process or just reboot your machine to make it well working.

Uninstall:

To remove the PPA, simply go to Software & Updates -> Other Software, then remove the repository line.

MyPaint 2.0, free open-source raster graphics editor for digital painters, was finally released after more than a year of development.

MyPaint 2.0 is a new major release that features a new layer mode and uses linear compositing by default.

  • Linear compositing and spectral blending (pigment).
  • Full Python3 support
  • Layer views.
  • Brush strokes dependent on view rotation and view zoom.
  • Additional symmetry modes: vertical, vertical+horizontal, rotational, snowflake.
  • Expanded flood fill functionality: offset, feather, gap detection and more.
  • New brush settings: offsets, gridmap, additional smudge settings, posterize, pigment.
  • New brush inputs: barrel rotation, base radius, zoom level, gridmap x/y, direction 360, attack angle.

How to Install MyPaint 2.0 in Ubuntu:

So far, there’s only .appimage available in the Github releases page. Go to the following link, scroll down, and select download the ‘MyPaint-v2.0.0.AppImage‘ package.:

Download MyPaint [.Appimage]

Then right-click on the .appimage file, go to Properties -> Permissions, and finally make it executable by checking the box says ‘Allow executing file as program’.

Finally run the .appimage file from its context menu to launch MyPaint and enjoy!

Cantata, an open-source qt5 graphical MPD Client, released version 2.4.0 a days ago. Here’s how to install it in Ubuntu 18.04, Ubuntu 19.10, and Ubuntu 20.04.

Cantata is now in a bug-fix only state. Version 2.4.0 is likely to be the last feature release. Changes in the release include:

  • Add ‘Read offset’ setting for AudioCDs.
  • Show invalid files in playlists using red text.
  • Add ‘Remove Invalid Tracks’ to playlist context menu.
  • Allow OPML URLs in podcast add URL dialog.
  • Allow to read local RSS/OPML files in podcast search dialog.
  • Add action to export current podcast subscriptions to OPML file.
  • Add searching for radio stations on Community Radio Browser.
  • Show bits in technical info.
  • Add –fullscreen command-line option to start fullscreen.
  • Add ‘aac’ and ‘libfdk_aac’ as supported encoders.

How to Install Cantata 2.4.0 in Ubuntu:

For Ubuntu 18.04, Ubuntu 19.10, and upcoming Ubuntu 20.04, you can install the new release package via the unofficial PPA.

1. Open terminal either by pressing Ctrl+Alt+T on keyboard or by searching for ‘terminal’ from app launcher. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:ubuntuhandbook1/cantata-qt

Type user password (no asterisk feedback while typing) when it prompts and hit Enter.

2. For those who have a previous release installed, upgrade Cantata via Software Updater:

or install it for the first time via commands:

sudo apt update

sudo apt install cantata mpd

Uninstall:

To remove cantata MPD client either use system package manager or run command:

sudo apt-get remove --autoremove cantata

To remove the PPA repository, launch Software & Updates utility and navigate to Other Software tab.

Blender 2.79

Blender 2.82 was released as the second update for the 2.80 series. The snap package has been updated for Ubuntu 18.04 and higher.

Blender 2.82 comes with over a thousand fixes and several important updates. Changes in the new release include:

  • New Mantaflow system allows to create mind-blowing fire and smoke simulations.
  • New FLIP solver to create lifelike liquids
  • Improved Cloth Simulations
  • The popular tiled-based UV mapping system is now fully integrated
  • Pixar’s USD export support.
  • Cycles supports AI-Accelerated Denoiser from OptiX, for NVIDIA RTX graphics cards.
  • AI denoising, Grease Pencil improvements, and much more!

How to Install Blender 2.82 in Ubuntu:

Blender offers official Snap packages (runs in sandbox) for Linux Desktop. If you’ve already installed the snap package, it will be updated automatically.

For Ubuntu 18.04 and higher, simply search for and install it from Ubuntu Software:

Note there are 3 Blender packages in Ubuntu Software: blender snap, native .deb package, and blender-tpaw (abandoned).

Go check the package details, and install the one from Snap store.

For Ubuntu 16.04, first open terminal (Ctrl+Alt+T) and run command to install snapd:

sudo apt install snapd

Then install the official Blender snap package via command:

sudo snap install blender --classic

Once installed, launch it from your system application launcher and enjoy!