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If your Ubuntu installation locks up as the graphical boot screen attempts to initialize, and you can't get access to your system after starting it up, booting into a previous version can be a help.

This can happen after updating to the the latest update to Linux 4.4.0-108 kernel, which included a fix for the Meltdown vulnerability.

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Openclipart extension for Libreoffice in Ubuntu

If you try to install the Openclipart extension for Libreoffice in Ubuntu 16.04, you might get this error:

Failed to register package for vnd.sun.star.expand:$UNO_USER_PACKAGES_CACHE/uno_packages/lu8331jgzjaf.tmp_/openclipart.oxt/python

To fix it, install libreoffice-script-provider-python like this:

Drush back up system for Drupal site

Here is an example of how you can set up a back up system for a Drupal web site with Drush. Daily backups are kept for a week, after which they are deleted, and the weekly, full backups are deleted after 30 days. This script comes with no warranties of any kind, as always, test thoroughly before using it.

Drush commands

To quickly find the most used drush commands, execute this one-liner in your terminal:

history | grep drush | awk '{print $3}' | sort | uniq --count | sort --numeric-sort --reverse | head -30

layout.css.devPixelsPerPx to 1.2

To zoom pages by default in Firefox, open the about:config page via the location/address bar, and change the value of layout.css.devPixelsPerPx to fx 1.2, to zoom in 120% on all pages by default. This will also increase the size of icons and tabs, but this way you don't need an add-on for larger text on all web pages by default.

Firefox add-ons

A few great add-ons for Firefox, which will improve security, download-speed and usability:

qpdfview PDF-reader for Ubuntu

The default PDF-reader in Ubuntu 16.04 is very plain and non-configurable, but it is easy to replace it with a better alternative, such as qpdfview, which is much more configurable.

Custom shortcuts with jumpapp

Custom shortcuts in Ubuntu is a great way to speed up starting up programs, or focusing on them.

Jumpapp is a great tool to use together with custom shortcuts:

Flash install

dr.dk is in the process of phasing out Flash (finally!) and use HTML5 in stead: