Update from Fedora 18 to 20 or 21 in few simple clicks and without (I hope) problems!

Fedora 21Sometimes simple things become hard problems. This happened to me when I discovered that my Fedora 18 OS was obsolete (very old indeed) and I tried to upgrade it to the Fedora 20 version.

Fedora 18 doesn’t support the automatic OS upgrade so I had to spend some hours to find information on Internet and create the right DIY solution for my case. At the end of my little (sic!) research I discovered that I was able not only able to upgrade the PC to Fedora 20 but I also found a good “trick” to upgrade to the latest Fedora 21 following in just a couple of steps with the help of fedup and some other escamotages.

This is how I succeed…

First, you have to open a Terminal and type:

init 3

but you will immediately leave the Fedora GUI and so it’s better if you write the below commands on an -old style, paper notepad- to be sure to have all the right information in you hands and correctly manage the upgrade from Fedora 18 to Fedora 20

sudo su -
yum update
yum install fedup
fedup-cli --network 20 --nogpgcheck

It’s better to add –nogpgcheck because often you are not able to complete your upgrade for the “old”, “bad saved” gpg key in your system.


Now, at the boot-up menu (GRUB 2 menu) you have to choose “System Upgrade (Fedup)”.

Then just to be sure you really have an up to date OS, in Terminal, type:

Yum update

If you have problems with one or more of your “old” repositories don’t forget to deconfigure them. In my case I had to launch this command line in Terminal due to skip an old repository and proceed with the upgrade:

yum-config-manager --save --setopt=home_moritzmolch_gencfsm.skip_if_unavailable=true

At this point, to upgrade from Fedora 20 to Fedora 21 you have to open (again) the Terminal and type:

fedup --network 21 --product=workstation --nogpgcheck


fedup --network 21 --product=server --nogpgcheck

(if your Fedora version is the server one)


fedup --network 21 --product=cloud --nogpgcheck

(for the Fedora cloud edition for generic virtual machines or Container)

Take it easy and go to bed for a long snap because, in my case, the download took some hours as for 2,577 files to be upgraded…

At the end, as before, you have to Reboot and select “System Upgrade (Fedup)” at the boot-up menu (GRUB 2 menu) and all the necessary files will be installed. Again, take a good book to read while you wait the installation.

Good luck and remind you MUST backup all your data before you start any upgrade because unforeseen risks are always around the corner!






How to delete – double – icons on your Android smartphones!

Google Play StoreThe first time I noticed doubled icons appearing on my Android 4.4 smartphone I thought that it was a temporary problem. So I tried to solve that with a simple reboot but I didn’t succeed.

Moreover when I tried to delete just one of the doubled icons I uninstalled the App…. This kind of matter is typical of smartphones and it usually doesn’t happen on tablets or Android PCs where you have a dedicated room (the “menu” page) to uninstall software (Apps) and different “screens” to organize them.

This means that if you delete a App’s icon from one of the “screens” you will still have your software installed into your device. The problem of double icons on smartphones is caused by a wrong configuration of your personal settings on Google Play Store.

To solve it, you have to:

1 – find all the problematic Apps;

2 – go to Google Play — Settings – and deselect “Add icon to home screen”;

3 – uninstall the “problematic” Apps;

4 – reinstall them.

To conclude it’s better to solve this kind of problem as soon as you notice it because, to solve the matter, you will have to waste your time uninstalling and reinstalling all the Apps with doubled icons.

Teenagers are leaving Facebook. Why? Because their parents are on it. [The Guardian]

by Rob Beschizza.

This brief article is interesting because it analyzes a new trend between 16-18 years old EU citizens who prefer alternative social media to Facebook. Moreover, the article describes a new “mood” between young European who “feel embarrassed to even be associated with” Facebook because it is considerate a conservative choice strictly related to their parents relational behaviour. Something to reflect on over the new year!… Tempus fugit!  AddThis

Creativeness vs. Big Data analytics: improvement or delay for human evolution?

ImageAfter more than one month of silence I would like to end this year with a simple thought about the interaction between technology and our society. I know that usually this blog has principally developed topics about Linux and Freeware but the “Christmas season” could be the right occasion for something different.

A recent post by Matthew Yglesias on Slate, focused my attention on the possibility that big data and “new” technologies could influence our society and personal creativeness in a strange, utilitaristic way.

In the above mentioned post, Matthew Yglesias describes some new possibilities, offered by big data, of deeply analyze the readers behaviour when they use e-readers. Some Yglesias’ examples let us know not only what kind of literature is the most popular today but also detailed analytics about the best number of pages that readers want when they read a certain type of book (e.g. biography or fiction).

These squeezed information drive to the possible next step: a writer could prefer to write a new book on the basis of quantitative marketing data instead of creativity.

In few words, we are potentially slowing the evolution of our knowledge curve because writers could prefer to pander “customers” behaviour and maximize earnings instead of spreading new ideas and theories that could be (sic! are) initially less profitable.

The Darwin “evolution by mistake” will be soon replaced by an utilitarian and transitive “involution by big data marketing analytics”?

It’s impossible to predict but, on the other hand, my hope is that big data marketing analytics will be used just as a tool to maximize and speed new ideas through readers than a mere earning factor to tame buyers. AddThis

SliTaz GNU/Linux: The Extremity of Lightweight


SliTaz Linux: a minimalist but effective Linux Distro

Originally posted on The Dubious Disc:

My old desktop was just lying around, and I decided to equip it with a minimalist distro — something just enough to run a web browser. I wanted to use that machine because its screen and keyboard are positioned at just the right elevation.

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