For my Raspberry Pi on my workbench I have a large SD card with NOOBS installed. This gives me the ability to switch between different operating systems without any trouble. But I recently finished a project and had to move the OS from the NOOBS SD to a permanent home on a smaller SD card. Basically, I needed to move the OS created by NOOBS to a new SD card. I did find some instructions in the forums but there are a few extra steps for Arch Linux to make the process smooth. (more…)
In Part 1 I covered the the framework needed to tracking my family data plan use. In the post I will cover the specific script I created. Once again, you will need to get PhantomJS on your Raspberry Pi see this post for the instructions. (more…)
PhantomJS is an awesome tool for web testing, web scraping and complex scripting. In a future post I will be talking about how to use PhantomJS to check and report on cell plan use. Because the Raspberry Pi 2 is new, no one has created a PhantomJS repository entry so before I could use it on my Raspberry Pi 2 I had to compile it from scratch. The PhantomJS team has done a super job automating most of the process (check out the instructions here) but a few tweaks are needed for the RPi2. (more…)
I was not part of the inner circle that was able to preview the Raspberry Pi 2 and my order finally arrived. My first impression is that NOOBS does not have Arch Linux for the Pi2. So I installed Arch based on the simple instructions found here. The result – a perfectly working, faster Arch RPi. More to come on this over the next few weeks.
Recently I was working on a project that required more RAM than my Raspberry Pi has. After all, the model B only shipped with 512MB and part of that needs to be allocated to the video card. But Linux has a method of dealing with running out of memory called the swap. The swap is a file on disk that serves as ‘overflow’ RAM space. It is slower than regular RAM but is a better solution than simply having the program crash. At the time I was using Arch Linux which doesn’t setup any swap by default. Raspbian does setup swap space but doesn’t do it in a recommended manner. (more…)
For advanced users – If you need a minimal distribution that includes a GUI and run entirely out of RAM, TinyCore might be right for you. It includes only a minimal set of tools that you can use to build up a complete system with only what you need. The complete announcement can be found here http://forum.tinycorelinux.net/index.php/topic,16551.msg98689.html and a review is here http://www.linuxuser.co.uk/reviews/picore-5-1-review-tinycore-comes-to-raspberry-pi. I will say that I do not entirely agree with the review and I give TinyCore higher marks than the reviewer.
UPDATE TinyCore v6.0 is now available here
Stack Exchange, the incredibility popular question and answer site now has a board dedicated to the Raspberry Pi. Check it out http://raspberrypi.stackexchange.com/. On this site (and every Stack Exchange site) users post questions and answers. The best answer get voted to the top. There is a sophisticated reputation system to keep spam and worthless exchange to a minimum. So the site always has high quality and fresh information.