Archives For Howtos

Stellarium, a free and open-source planetarium software, has reached the 0.15.2 release a few days ago with over 100 improvements and bug fixes.

Some new features in Stellarium 0.15.2:

  • an algorithm for DeltaT
  • orbit visualization data for asteroids
  • new option for the InfoString group
  • support for calculating extincted magnitudes of satellites
  • new type of Solar system objects: sednoids
  • read the announcement for more details.

How to Install Stellarium 0.15.2 in Ubuntu / Linux Mint:

The new release has been made into the official PPA, available for Ubuntu 16.04, Ubuntu 16.10, Ubuntu 17.04, Linux Mint 18.

1. Open terminal by pressing Ctrl+Alt+T or searching for “Terminal” from start menu. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:stellarium/stellarium-releases

Type in your password (no visual feedback due to security reason) and hit Enter.

2. If you have an existing Stellarium installation, launch Software Updater (Update Manager) and upgrade the software after checking for updates.

Tip: It’s highly recommended to reset the settings when you will install the new version

Or just run commands in terminal to install / upgrade Stellarium:

sudo apt update

sudo apt install stellarium

Uninstall:

You can easily restore Stellarium to the stock version in your Ubuntu main repository by purging the PPA via command:

sudo apt install ppa-purge && sudo ppa-purge ppa:stellarium/stellarium-releases

Sigil

The Sigil epub editor has reached the 0.9.8 release yesterday. Here’s how to install it in Ubuntu 16.04, Ubuntu 16.10, Linux Mint 18 via PPA.

Sigil 0.9.8 release highlights:

  • PyQt5 support for plugins.
  • New preferences menu to adjust the size of Sigil’s main icons to your liking.
  • An important fix for temp_folder issues on Windows
  • Add manifest properties to Book Browser tooltips and to All Files Reports Widget for epub3
  • Make Sigil’s UI and spellchecker language settings available to plugins
  • Various bug-fixes, read the announcement for details.
Sigil Adjust menu icons' size

Sigil Adjust menu icons’ size

How to Install Sigil 0.9.8 in Ubuntu / Linux Mint:

Sigil does not offer official Linux binaries. Besides building from the source tarball, you may install Sigil 0.9.8 via my personal PPA.

1. Open terminal by pressing Ctrl+Alt+T or searching for “Terminal” from start menu. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:ubuntuhandbook1/sigil

Type in your password (no visual feedback due to security reason) and hit Enter.

2. Then you can upgrade Sigil editor from an existing release via Software Updater:

Or install /upgrade Sigil via commands:

sudo apt update

sudo apt install sigil

In Addition, for Linux libxml2 bug see HERE. Sorry that I can’t build it with DBUILD_PATCHED_LIBXML2=1 option since it requires cloning source from github.com but Launchpad builders do not have internet access.

kodi-icon

Kodi 17.1, the first bug-fix release for the v17 “Krypton”, has been released and made into PPA for Ubuntu 14.04, Ubuntu 16.04, Ubuntu 16.10, and Linux Mint 17 & 18.

According to the changelog, Kodi 17.1 brings a huge list of fixes and here are some of them:

  • Update Estuary and Estouchy with some bugfixes and improvements
  • Fix EDL skipping
  • Fix slow song smartplaylist
  • Several PVR fixes
  • Update Chorus webinterface
  • Fix addons not being marked broken when they are updated with broken flag
  • Add limiter on random songs which should prevent large memory usage on big libraries
  • Improve keyboard mapping during button mapping
  • Improve analog stick handling
  • Improve plugin performance when building the content list
  • Include RTMP inputstream add-on for Windows

Kodi-Wallpaper-15B-1080p_samfisher-600x336

Although the Kodi website does not announced the v17.1 release at the moment, you can now install or upgrade to Kodi 17.1 via following steps:

1. Open terminal by pressing Ctrl+Alt+T or searching for “Terminal” from Unity Dash / Start Menu. When it opens, run command to add Kodi PPA:

sudo add-apt-repository ppa:team-xbmc/ppa

Type in your password (no visual feedback due to security reason) and hit Enter.

kodi ppa

2. Then upgrade Kodi Media Center from a previous release via Software Updater:

upgrade Kodi

Or run the commands below one by one to install or upgrade Kodi:

sudo apt update

sudo apt install kodi

Once installed, you can either launch Kodi from app launcher or select log in Kodi session at login screen.

gscan2pdf-icon

The latest GScan2PDF has recently reached 1.7.3 release. Here’s how to install it in all current Ubuntu releases including Ubuntu 12.04, Ubuntu 14.04, Ubuntu 16.04, and higher.

gscan2pdf is a GUI to ease the process of producing PDFs or DjVus from scanned documents. You scan one or several pages in with File/Scan, and create a PDF of selected pages with File/Save PDF. At maturity, the GUI will have similar features to that of the Windows Imaging program, but with the express objective of writing a PDF, including metadata. Scanning is handled with SANE via scanimage. PDF conversion is done by libtiff. Perl is used for portability and ease of programming, with gtk2-perl for the GUI. This should therefore work more or less out of the box on any system with gtk2-perl, scanimage, and libtiff.

While Ubuntu repositories only provide old versions, you can install the latest GScan2PDF (1.7.3 so far) via the developer’s PPA and keep it up-to-date by receiving updates via Software Updater.

gscan2pdf-173

1. To add the PPA, open terminal by pressing Ctrl+Alt+T, when it opens, run command:

sudo add-apt-repository ppa:jeffreyratcliffe/ppa

Type in your password (no visual feedback due to security reason) and hit Enter.

gscan2pdf ppa

2. Have an old version installed? You can now launch Software Updater (Update Manager) and upgrade the software to the latest:

upgrade gscan2pdf

For the first time, you can either install it via Synaptic Package Manager or by running following commands in terminal:

sudo apt-get update

sudo apt-get install gscan2pdf

How to Restore:

For any reason you can easily restore to the stock version of gscan2pdf in your Ubuntu main repository by purging the PPA via command:

sudo apt-get install ppa-purge && sudo ppa-purge ppa:jeffreyratcliffe/ppa

audacity-icon245

After more than one year of development, the Audacity audio editor has reached the 2.1.3 release. Here’s how to install it in Ubuntu 16.04, Ubuntu 16.10, and their derivatives.

Thanks to an upgrade of the PortAudio library, Audacity 2.1.3 now properly supports Windows 10. It also features:

  • Added support for Magic Mouse/Trackpad on mac OS.
  • New Distortion effect, Rhythm Track (was called Click Track) and Sample Data Import. Also effects are no longer grayed-out when in pause.
  • New scrub ruler and ‘pinned’ option so the waveform moves and the recording/playing head stays still.
  • New features in Timer Record.
  • On Mac, audacity.app is now added to /Applications/ directly rather than adding a folder there.
  • Over 60 bugs fixed, including five longstanding bugs.

Audacity 2.1.3

How to Install Audacity 2.1.3 in Ubuntu via PPA:

The Audacity Team does not offer official builds of DEB packages. Besides building from source, you can install Audacity 2.1.3 from my PPA (unofficial). Ubuntu 14.04 is excluded due to requirement of GCC >= 4.9.

1. Open terminal by pressing Ctrl+Alt+T or searching for “Terminal” from Unity Dash. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:ubuntuhandbook1/audacity

Type in your password (no visual feedback due to security reason) when it asks and hit Enter.

audacity ppa

2. After that, upgrade Audacity via the Software Updater (Update Manager) utility:

upgrade audacity

Or you can run the commands below one by one to install or upgrade the audio editor:

sudo apt update

sudo apt install audacity

Uninstall:

For any reason, you can easily remove the PPA and downgrade Audacity to the stock version in Ubuntu via the ppa-purge tool:

sudo apt install ppa-purge && sudo ppa-purge ppa:ubuntuhandbook1/audacity