eRacks Open Source Systems Blog

Making the world safe for Open Source

We now support the new Ubuntu operating system.

ubuntu-17-04

April 15th, 2017

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The latest OpenMandriva is available from us! https://www.openmandriva.org/

om-300pl

March 1st, 2017

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The newest Mageia is available from us! https://www.mageia.org/en/

mageia-2011

December 30th, 2016

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We now support Mint 18.1!

linux-mint-18-1

December 17th, 2016

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fedorawoman25Fedora 25 is now available on all eRacks Systems –

And Mint 18.1 Serena is coming in the next week or two as well..

If you don’t see what you want, be sure to ask for it in the details field when you request a quote, or contact us on the contact page or via email –

j

November 28th, 2016

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cinnamon-mint-18Linux Mint 18 is now available!

Based on Ubuntu 16.04, which was made available in April, this release of Mint is based on the LTS release of Ubuntu, rather than following the twice-yearly updates – and will have only incremental changes and updates over the next 2 years – thus being more stable and predictable, and avoiding any potential instabilities introduced by the biannual Ubuntu upgrades.

So Mint 18 should now be available in all the eRacks product dropdowns – if you don’t see it on the model you want, please contact us and we’ll fix it or give you a custom quote with Mint 18.

As always, contact us at info@eracks.com for any inquiries or questions regarding the Mint 18 release, or any of our products, and what release we recommend for you and your unique needs.

j

August 3rd, 2016

Posted In: Linux, Mint, News, ubuntu, Upgrades

Tags: , , , ,

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thumb_cinnamonThe latest Linux Mint release, Mint 17 “Qiana”, is now available on most or all eRacks systems.

Either the Cinnamon or Mate editions, or KDE, XFCE, Debian (LMDE) are also available.

Most or all of our dropdown OS choices have been updated,  but if you don’t see what you’re looking for, please ask us by email:  http://eracks.com/contact_us and we will add it or give you a custom live quote.

UPDATE June 30th, 2014: All Mint17 installations are now V2.

http://blog.linuxmint.com/?p=2662

 

 

June 18th, 2014

Posted In: Mint, News, Operating Systems, ubuntu

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eRacks, your premier open-source vendor has been featured in the VAR guys Open Source 50, a compilation of the top 50 open source vendors with partner programs. Its a great honor for us here at eRacks and we are very pleased with it. We are constantly working to increase our partners, and work with like minded individuals and companies to expand the open source movement across the globe. Its been a long road, and we believe we are seeing just the tip of the iceberg in this global movement and we welcome you to join us in our quest! If you are interested in working with us, or if you have any questions please contact us and we will be happy to answer any questions, or work closely with you on any upcoming projects.

banner_eracks_2

Link here:

http://www.thevarguy.com/the-open-source-50/the-open-source-50-listed-a-to-z/

January 19th, 2009

Posted In: Development, News

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I recently purchased a Vidego28 handheld MP4 player with a 2.8” display – which is actually a rebranded ONDA VX858 – and discovered that it has very specific requirements for the videos it plays.

The manufacturer provides a Windows binary-only utility for converting your videos to something the Vidego28 can read, but because I don’t use Windows, and because I prefer using the command line for automating these sorts of tasks, I immediately set out to discover exactly what format my videos should adhere to.

Googling around, I found that the videos it plays should be 12bpp XviD encoded AVIs at or below 24 fps (frames per second) with a maximum bitrate (for the video) of 800kbit/s and a resolution of 320×240 (which is the size of the display, in pixels.) I also found that the audio portion of the AVI should be encoded in the MP2 format. Using mencoder (http://en.wikipedia.org/wiki/MEncoder), I cobbled together the following command to do the job, partly from experiment and partly from what I had found in someone else’s blog (all on one line):

mencoder -mc 0 -noodml inputfile.avi -of avi -o outputfile.avi -ofps 24 -vf-add scale=320:240 -vf-add expand=320:240:-1:-1:1 -srate 44100 -ovc xvid -xvidencopts bitrate=400:max_bframes=0:quant_type=h263 -oac twolame -twolameopts br=160

At this point, I had partial success. I was able to take my videos and convert them to a format the Vidego28 could read. The problem was that almost immediately during playback on either my computer or the MP4 player, the audio and video became so out of sync that it was impossible to make use of the files mencoder produced. I spent hours on Google looking for a solution and tweaking the above command, without success.

At some point during my experimenting, I discovered that ffmpeg (http://ffmpeg.mplayerhq.hu/) could produce AVI files as well, and decided to give it a shot. Unfortunately, the files it produced were not in a format the Vidego28 could read, but out of curiosity, I decided to see what would happen if I used mencoder to take the output of ffmpeg and re-encode it per the original command I had tried earlier, since the files ffmpeg produced were in sync when played back on my laptop. To my astonishment, for whatever reason, mencoder was able to output an AVI in which the audio and video remained at all times in sync when played on the Vidego28!

Finally, I decided to write a simple script so that I could automate the process of calling ffmpeg, followed by mencoder, the result of which is listed below:

vidego.bash:

#!/bin/bash
FPS=$1
INPUT=$2
OUTPUT=$3

# Make sure all the required arguments were passed
if [ -z $FPS ] || [ -z $INPUT ] || [ -z $OUTPUT ]; then
   echo
   echo "Usage: $0 [fps] [input file] [output file]"
   echo
   exit 1
fi

# Make sure $FPS is valid
if [ $FPS -lt 1 ] || [ $FPS -gt 24 ]; then
   echo
   echo "error: frames per second should be between 1 and 24"
   echo
   exit 1
fi

# Let's do our stuff!
ffmpeg -i $INPUT -r $FPS /tmp/$OUTPUT

mencoder -mc 0 -noodml /tmp/$OUTPUT -of avi -o $OUTPUT -ofps $FPS -vf-add \
scale=320:240 -vf-add expand=320:240:-1:-1:1 -srate 44100 -ovc xvid \
-xvidencopts bitrate=400:max_bframes=0:quant_type=h263 -oac twolame \
-twolameopts br=160

rm /tmp/$OUTPUT

The above script takes as parameters the desired FPS (which should be between 1 and 24), the source file (which can be any format that mencoder supports) and the destination (the file that will go on your MP4 device). A sample call would look like this:

vidego.bash 24 input.file output.avi

Just copy output.avi to your Vidego28 (or ONDA VX858), and you’ll be good to go!

April 28th, 2008

Posted In: multimedia

Tags: , , , , , , , ,

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NOTE: Do NOT install the ports tree during the installation. We’re going to install the latest ports tree (complete with security updates) later on.

*** Step 1: Install FBSD 6.3 or 7.0

1. Insert the CD
2. Choose the standard install
3. When the installation is finished, you’re done!

*** Step 2: Installing the Nvidia Drivers

NOTE: The open source ‘nv’ driver doesn’t work on the GeForce 8 series of cards, so don’t even bother trying.

1. Type the command ‘sysconfig’ and install the ‘compat5x’ package via FTP. This is a pre-requisite for the nvidia driver package.

2. Download the FreeBSD x86 drivers from www.nvidia.com for the GeForce 8 series.

3. Untar, cd to the resulting directory and type the command ‘make install’

4. Type the command ‘nvidia-xconfig.’ You’ll get some errors about Gnome libraries not being installed, but it still manages to create a good xorg.conf anyway.

5. Open /etc/X11/xorg.conf and change the following:

In Section “Input Device:”
Change Option “Device” “/dev/sysmouse” to “/dev/psm0”
Change Option “Emulate3Buttons” “no” to “yes”

6. Test the xorg server by typing ‘startx’ and verify that you get a working display

7. Close xorg and pat yourself on the back for a job well done 😉

*** Step 3: Install the Ports Tree

1. Go to ftp.freebsd.org and download the latest 6.3 or 7.0 ports.tgz file (under /pub/releases/6.3 or /pub/releases/7.0 I believe, but I can’t remember exactly.)

2. Cd to /usr and extract ports.tgz

*** Step 4: Configuring the Soundcard

1. Edit the file /boot/loader.conf and add the line “snd_hda_load=”YES”

2. Reboot and grep dmesg for Realtek. If it shows up, try to play an MP3 to make sure sound is really working.

*** Step 5: Wireless Configuration

We no longer need to do anything. As of FreeBSD 7.0, the wpi driver works by default! Wireless will not work,
however, under 6.3

March 31st, 2008

Posted In: Laptop cookbooks

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