Browsing All posts tagged under »linux«

Moving away from Ubuntu

July 10, 2011

15

I decided to abandon Ubuntu on my home desktop after the upgrade to 11.04 Natty Narwhal. I knew there were some things that I couldn’t like, but I didn’t know it would cripple the very base of the operating system. These are the things that went bad: The upgrade finished with obscure errors. can’t log […]

PyPy as a faster alternative for Python

June 7, 2011

0

It came to my attention today that there’s an alternative interpreter for the Python language which is faster and often viable: it’s called PyPy and uses Just-In-Time compilation to execute Python code. Just-In-Time compilation is a technique that is used successfully in many projects: the .NET Framework, Java, QEMU, … and it has also been […]

QEMU raw images real size

May 8, 2011

2

Today I noticed a nice thing about using “raw” hard disk images with QEMU: the images are sparse files. What does it mean? Sparse files are an useful feature of many file system formats that saves space in case of files that contain chunks of zero data. My host’s file system is formatted with ext4, […]

I’m seeding Ubuntu 11.04 Natty Narwhal

April 30, 2011

3

Ubuntu 11.04 Natty Narwhal has been just released. I’m curently seeding the torrents of the installation images, I feel it’s a small yet effective thing to do to reciprocate the benefits I get for using Ubuntu since 2007, when the release was called Feisty Fawn. I went to the Ubuntu alternative download page, downloaded the […]

Programming Arduino Uno in pure C

March 29, 2011

57

Playing with Arduino board and its graphical development environment I felt the urge to work closer to the hardware, stepping away from the default library and the Java IDE and using the compiler directly from the command line. Fortunately all the tools are there, because the Arduino IDE uses them under the hood. So I […]

Videos of last Embedded Linux Conference are out

March 21, 2011

0

Last October the Embedded Linux Conference Europe (ELCE) 2010 was held in Cambridge  (UK). Today the videos of that conference are available on Free Electrons site. My Top-5 of the most interesting videos is as follows: Panda board demonstration, Rekha Kumar and Nipuna Gunasekera (Texas Instruments): Video Software Considerations When Using High-Performance Memory Systems, Leif […]

Getting started with Arduino Uno on Ubuntu

January 31, 2011

17

I really wanted to try Arduino; Arduino narrates a story where the good guys are winning. Saturday I arranged to buy one, the Arduino Uno, and the first thing that came into my mind was “Wow, it’s really smaller than I thought possible!”. I went home and started unboxing it: the packages comes with a […]

Coding styles comparison in the Open Source Software world

December 28, 2010

19

While looking for existing C coding standards I discovered that the GNU and Linux projects officially suggest very different styles. Inside the Linux kernel documentation, Linus Torvalds goes so far as to mock GNU coding standards: First off, I’d suggest printing out a copy of the GNU coding standards, and NOT read it. Burn them, […]

Using Ubuntu ARM cross-compiler for bare metal programming

December 5, 2010

21

Ubuntu 10.10 Maverick Meerkat includes an ARM cross-compiler to compile programs for Linux. The compiler can also be used for bare-metal programming with a few arrangements.

BloGTK installation on Ubuntu 10.04

November 7, 2010

10

I wanted to try BloGTK to write my WordPress blog posts, as suggested by the Apps for WordPress.com page. I installed it on my Ubuntu 10.04 machine from the Software Center, then launched it from the Applications -> Internet menu, but it didn’t start. I could only see on the task bar that a window […]

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