Archive for ‘Linux’ Category
Posted on 13:58, October 31st, 2009 by Many Ayromlou
Downloaded and installed 9.10 yesterday and what do you know, someone decided to take away Ctrl-Alt-Backspace — or what I call “Three Finger Salute for Linux”. Whhhaaattt!!!!
How the heck are you supposed to kill and restart X without that…..A coworker suggested Alt-PrintScreen-K, but that just restarts GDM, not really useful when X decides to go south. Damit!!
The reason given on Ubuntu wiki is that “This is due to the fact that DontZap is no longer an option in the X server and has become an option in XKB instead.”
Well, fear not, whoever disabled it also created a easy way to reenable it again. Here is what you do:
Posted on 12:19, September 28th, 2009 by Many Ayromlou
Okay if you know about gksudo, fine. I just found out about it a little while back when I was trying to run ethereal. You see under Ubuntu (and a lot of other Linux distros) the concept of root user has been removed. There is no root (well there is, but you can’t access it), unless you specifically modify your system to activate it. That’s fine (most of the time), since you can use sudo to accomplish almost anything as the administrator. One thing that doesn’t work properly are the graphical applications that need root access. So here is where gksudo comes to rescue. In the case of ethereal I would issue the following command to get it to prompt me for sudo and run as root user:
Posted on 12:10, September 28th, 2009 by Many Ayromlou
I love Ubuntu, but there is one thing that really bugs the hell out of me. The default configured editor in Ubuntu is nano, a Pico clone. I hate Pico, therefor I hate nano :-). So how would you go about fixing this and changing the default editor to vi (or vim):
Posted on 17:22, September 9th, 2009 by Many Ayromlou
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Yep, those crazy open source hackers over at dvinfo.net have done it again. You thought the RED camera brought about a revolution in dcinema, well, you ain’t seen nothing yet. Apertus is using the Elphel 353, free software and open hardware camera. The Elphel Camera which this entire project is based on is basically an excellent security camera that can do some real magic. The camera uses an Aptina CMOS bayer-pattern sensor with an optical format of 1/2.5″ (5.70mm x 4.28mm) and a native resolution of 2592×1944 (5 Megapixels). It features a 12 bit ADC and supports: region of interest, on-chip binning and decimation. Aptina claims that the chip has 70db of dynamic range at full resolution and 76db when using 2×2 binning.… Read the rest
Posted on 13:54, June 19th, 2009 by Many Ayromlou
So after yesterdays rant, I went back and figured out how to install the Cacti monitoring software (OSS, Free) onto a Ubuntu 9.04 “Jaunty Jackalope” Desktop installation. This guide uses packages only, no compiling, no Makefiles or anything like that…..You should be able to just follow this and get a fully functioning Cacti installation in about 30 minutes. Here are the steps:
Posted on 17:07, May 24th, 2009 by Many Ayromlou
I was looking for a fast small (read: mini-ITX) mobo that had enough power to drive 1080P monitor/panel and I came across Zotac IonITX-A-U board. According to manufacturer’s website:
The mini-ITX form factor ZOTAC® ION combines a high-performance NVIDIA® ION graphics processor with a power-efficient Intel® Atom processor for the ultimate eco-friendly platform that has no troubles handling regular web browsing, e-mail, & productivity and HD video playback tasks.
NVIDIA® PureVideo HD technology harnesses the power of the ION’s 16 high-speed stream processors for high-definition Blu-ray playback capabilities. PureVideo HD technology decodes HD video formats and enhances standard-definition videos with the ION GPU for flawless HD and superior SD video playback.
Sounds and looks very nice and capable. I guess I’d have to pick one up and give it a whirl.… Read the rest
The USB-powered Beagle Board is a low-cost, fan-less single board computer utilizing Texas Instruments’ OMAP3530 application processor that unleashes laptop-like performance and expansion without the bulk, expense, or noise of typical desktop machines.
Beagle Board is based on an OMAP3530 application processor featuring an ARM® Cortex™-A8 running at up to 600MHz and delivering over 1,200 Dhrystone MIPS of performance via superscalar operation with highly accurate branch prediction and 256KB of L2 cache. Focal to Beagle Board experience is the high-speed USB 2.0 on-the-go (OTG) port that can be utilized to provide power to the board or to deliver highly flexible expansion. Standard PC peripherals can be connected to Beagle Board using the USB with a mini-A to standard-A cable adapter, DVI-D using an HDMI to DVI-D adapter, or through the MMC/SD/SDIO connector enabling a complete desktop experience.… Read the rest
Not too sure, but the Zoom OMAP34x-II Mobile Development Platform looks too “finished/flashy” to be a Mobile Development Platform (MDP). I guess time will tell……For now we can all drool over the pics….and btw, if you have $1150, you can beat the crowd and own one today.
Out of the box features of the Zoom OMAP34x-II MDP :
The DLP Pico projector is a interesting critter.… Read the rest
Wow, this little guy is cool. Check out Surveyor Corporation’s Open Source Wireless Mobile Robot . Very neat little package for just $475. While there, you might also want to check out YARB 1.0 (Yet Another Robotic Blimp) robot, also pretty neat. Here is a bit of a description according to their site:
Designed for research, education, and exploration, Surveyor’s SRV-1 internet-controlled robot integrates a 1000MIPS 500MHz Analog Devices Blackfin BF537 processor, a digital video camera with resolution from 160×128 to 1280×1024 pixels, laser pointer ranging, and WLAN 802.11b/g networking on a quad-motor tracked mobile robotic base.
Operating as a remotely-controlled webcam or a self-navigating autonomous robot, the SRV-1 can run onboard interpreted C programs or user-modified firmware, or be remotely managed from a Windows, Mac OS/X or Linux base station with Python or Java-based console software.… Read the rest