torstai 29. syyskuuta 2016

Raspbian with Pixel Desktop now available for Raspberry Pi

The latest Raspbian (September 2016) has a new Desktop called Pixel. You can download the image of the OS here: . Write the image on a microSD card the same way as before.

So, what's new? The graphics is flattened making everything look 2D - not a bad thing. Epiphany web browser is making room for Chromium and uBlock Origin adblocker. Take a look at more detailed list of all the new features here:  .

torstai 22. syyskuuta 2016

How to make a bootable macOS Sierra setup usb stick

Who needs a bootable setup usb stick with an operating system inside these days? Well, maybe you do :) ! macOS Sierra is the latest OS from Apple. If you own an older Mac and want to run Sierra then a bootable setup usb stick might suit you needs. Read on and remember: you try the following at your own risk!

When preparing macOS Sierra usb stick you can choose between a GUI and CLI (Command Line Interface). It's up to you which one you choose.

First off, open App Store and download macOS Sierra. It's free. When download has completed DON'T run the installer. That would install macOS Sierra on your HD or SSD. It's the usb setup stick we are after. Close the Installer window.

Next, download and run MacDaddy's Install Disk Creator. Find an 8 GB usb stick and place it in your Mac. Click Select the OS X installer. Then navigate to folder /Applications and find Install macOS Click Create Installer and type in root's password. When done eject the usb stick and place in in your Mac again. Edit: I had to use Disk Tool to erase the data on usb stick (Mac OS Extended (Journaled) -formatted). Ok, that was the GUI part of the story. Let's move on!
CLI is always there. GUIs may come and go. CLI (Command Line Interface) stays (the same!). Now that you already have macOS Sierra downloaded you don't need to do it anymore. Off you go and type in (or Copy/Paste) the command below. Where? Open Terminal. Copy/Paste. Type in root's password. That's it!

One more thing. You need to know the name of your usb stick. In the example below the name is Untitled. And make sure your usb stick is formatted the Mac way (Mac OS Extended (Journaled) -formatted). And eject/place usb stick to make it work.

sudo /Applications/Install\ macOS\ --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ --nointeraction

tiistai 20. syyskuuta 2016

macOS Sierra is out! And it runs on these Macs!

macOS Sierra is out and available in App Store for free! Check if your Mac is listed below and among supported devices.
  • MacBook (Late 2009 and later)
  • MacBook Air (2010 and later)
  • MacBook Pro (2010 and later)
  • Mac mini (2010 and later)
  • iMac (Late 2009 and later)
  • Mac Pro (2010 and later)
macOS Sierra is out! Get it while it's hot!

perjantai 9. syyskuuta 2016

A quick test of mind map app (running on a web browser)

Online mind map app (at offers three outputs; an HTML outline and JPG/PNG-images. You can see the results below. The first picture is JPG, then PNG and lastly the HTML outline.

New Mind Map
SBC (Single Board Computer)
Arduino Uno (microcontroller)
Raspberry Pi
created with