Linux Journal Contents #188, December 2009
Linux Journal Issue #188/December 2009
If last month's Infrastrucuture issue was too "big" for you then try on this month's Embedded issue. Find out how to use Player for programming mobile robots, build a humidity controller for your root cellar, find out how to reduce the boot time of your embedded system, and if you're new to embedded systems find out the basics that go into one. You can also read about the Beagle Board, the Mesh Potato and a spate of other interestingly named items. And along with our regular columns don't miss our new monthly column: Economy Size Geek.
Features
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Playing with the Player Project
by Kevin Sikorski
Programming mobile robots to interface with sensors, actuators and robots.
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Introduction: a Typical Embedded System
by Johan Thelin
The common parts that go into an embedded Linux system.
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Controlling the Humidity with an Embedded Linux System
by Jeffrey Ramsey
It's not the heat; it's the humidity.
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Reducing Boot Time in Embedded Linux Systems
by Christopher Hallinan
The years fly, but the seconds can drag on forever.
Indepth
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The Mesh Potato
by David Rowe
Everybody loves a good Spud!
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Isolated Multisession Workstations
by Jorge Salgado
Access Ubuntu, Windows, Mac OS and Citrix from the same workstation.
Columns
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Reuven M. Lerner's At the Forge
2009 Book Roundup
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Dave Taylor's Work the Shell
Calculating the Distance between Two Latitude/Longitude Points
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Kyle Rankin's Hack and /
Message for You Sir
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Dirk Elmendorf's Economy Size Geek
A Pico-Sized Platform with Potential
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Doc Searls' EOF
Is “Open Phone” an Oxymoron?
Review
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The Goggles, They Do Something
by Kyle Rankin
In Every Issue
Today’s modular x86 servers are compute-centric, designed as a least common denominator to support a wide range of IT workloads. Those generic, virtualized IT workloads have much different resource optimization requirements than hyperscale and cloud applications. They have resulted in a “one size fits all” enterprise IT architecture that is not optimized for a specific set of IT workloads, and especially not emerging hyperscale workloads, such as web applications, big data, and object storage. In this report, you will learn how shifting the focus from traditional compute-centric IT architectures to an innovative disaggregated fabric-based architecture can optimize and scale your data center.
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| Using Salt Stack and Vagrant for Drupal Development | May 20, 2013 |
| Making Linux and Android Get Along (It's Not as Hard as It Sounds) | May 16, 2013 |
| Drupal Is a Framework: Why Everyone Needs to Understand This | May 15, 2013 |
| Home, My Backup Data Center | May 13, 2013 |
| Non-Linux FOSS: Seashore | May 10, 2013 |
| Trying to Tame the Tablet | May 08, 2013 |
- Using Salt Stack and Vagrant for Drupal Development
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- New Products
- Validate an E-Mail Address with PHP, the Right Way
- Drupal Is a Framework: Why Everyone Needs to Understand This
- A Topic for Discussion - Open Source Feature-Richness?
- Home, My Backup Data Center
- New Products
- Readers' Choice Awards
- RSS Feeds
- Automatically updating Guest Additions
25 min 55 sec ago - I like your topic on android
1 hour 12 min ago - Reply to comment | Linux Journal
1 hour 33 min ago - This is the easiest tutorial
7 hours 48 min ago - Ahh, the Koolaid.
13 hours 26 min ago - git-annex assistant
19 hours 26 min ago - direct cable connection
19 hours 48 min ago - Agreed on AirDroid. With my
19 hours 58 min ago - I just learned this
20 hours 3 min ago - enterprise
20 hours 33 min ago
Enter to Win an Adafruit Prototyping Pi Plate Kit for Raspberry Pi

It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Prototyping Pi Plate Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- Next winner announced on 5-21-13!
Free Webinar: Linux Backup and Recovery
Most companies incorporate backup procedures for critical data, which can be restored quickly if a loss occurs. However, fewer companies are prepared for catastrophic system failures, in which they lose all data, the entire operating system, applications, settings, patches and more, reducing their system(s) to “bare metal.” After all, before data can be restored to a system, there must be a system to restore it to.
In this one hour webinar, learn how to enhance your existing backup strategies for better disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible bare-metal recovery solution for UNIX and Linux systems.




Comments
How Do I download Archives?
I am a subscriber to magazine [hard copy] and registered a user account but the archives do not seem easily accessable
Not Downloadable
The archives are not meant for download, they're meant for online viewing. If you want a local copy the best thing to do would be to get our Archive CD.
Mitch Frazier is an Associate Editor for Linux Journal.
Ok, but what about for
Ok, but what about for subscribers of both the hard-copy and digital download bundle-pack? I didn't download last month's until this month's email came, so now I can't figure out how to get last month's issue.
Thanks!
See your subscription account
Goto your subscription account and login, then look for the digital downloads link.
Mitch Frazier is an Associate Editor for Linux Journal.
Cool! Thanks. That worked
Cool! Thanks. That worked great!
I had previously found the URL, but didn't realize that the "Digital Downloads" was the right link. That url is a little heavily biased towards subscription renewal on first visit. Even clicking on the Digital Downloads link (hidden in that rather tiny menu at the bottom of the page) doesn't visually change the page enough. It's dominated by the LJ-number/Zip-Code explanation, so the relatively subtle mid-page sub-title change seems a lot like those "Find Six Differences in These Two Pictures" games from the Saturday funny papers :)
But, then, difficulty in finding the proper Login/Download link for the Digital Downloads is a charge that could also be fairly leveled at another Linux publication (of the "Pro" persuasian, in the USA at least), too.
Luckily, the Linux Journal magazine issues are awesome, once the heiroglyphics are decoded to get it!
Thanks much to you and the Linux Journal staff for all the hard work!
will see what can be done
I will see what I can do to make better process.
Mark Irgang is Associate Publisher at Linux Journal