Yuma 2 FAQs

Can I install Linux on my Yuma 2 that is currently running Windows?

If you would like to install Linux on your Yuma 2 please contact SDG Systems at support@sdgsystems.com.

Can I dual-boot Windows 7 and Ubuntu 12.04?

Yes, the SDG Yuma 2 Linux installer will give you the option of resizing the Windows partition and installing as dual-boot or erasing the Windows partition for a Linux-only install.

What are the advantages to running Linux?

Linux offers three main areas of advantage: flexibility, security, and maintenance.

  • Linux is flexible, offering a variety of free office and productivity tools, programming environments, and the ability to configure the OS as needed for a project.
  • For security, Linux includes GNU Privacy Guard (GnuPG or GPG), Open Secure Shell (OpenSSH), and supports a variety of VPNs and other encryption software. Linux is significantly less subject to malware attacks than other operating systems.
  • Linux is also maintainable. It makes better use of hardware resources (uses less RAM and disk space), and performance won’t degrade over time. Standard tools, like SSH, allow secure remote access for administrators to troubleshoot problems.

Will Ubuntu 14 be available for the Yuma 2?

Currently only Ubuntu 12.04 LTS is supported. Other Linux distributions or releases are available by request, with volume commitment or engineering payment.

How do I update my device?

You can apply the latest updates using Synaptic Package Manager or from the Terminal with:

sudo apt-get update
sudo apt-get upgrade

What 802.11 encryption types are supported?

The Yuma 2 supports all the common wireless encryption types such as WEP, WPA-PSK (TKIP), and WPA2-PSK (AES). It does not support Cisco CCX extensions.

Can I capture video with my device?

Video capture is supported, but the frame rate may be low and audio may not be properly recorded. This is a known issue and we hope to address it in a future release.

What is the accuracy of the internal GPS?

The internal GPS has a typical accuracy of 2-4 meters. It also includes integrated real-time SBAS for improved accuracy. An optional 1-2 meter high-accuracy internal GPS is available.

Can I connect the Yuma 2 with Ethernet?

Customers can connect a USB Ethernet adapter to the USB Host port on the Yuma 2 to add Ethernet functionality. The Yuma 2 should automatically recognize most adapters, if not you can look for a Linux driver from the adapter’s manufacturer. SDG Systems sells compatible USB Ethernet adapters.

Does the Yuma 2 support 3G cellular service?

Yes. The Yuma 2 includes a 3.75G HSDPA+ modem for 3G cellular connectivity. In the United States, HSDPA+ is supported on the AT&T network. For T-Mobile, only GSM eGPRS (EDGE) is supported. CDMA is not currently supported in this release, support will be added in an update later this summer.

How can I connect my RS-232 serial device to the Yuma 2?

RS-232 serial is available via the USB-Serial accessory. This port can be accessed from a command line, for example:

sudo screen /dev/ttyUSB0 115200 8N1

What are the button assignments on the Yuma 2?

  • Direction arrows provide Up, Down, Left, and Right keys.
  • OK = Enter
  • Fn = Applications menu
  • F1, F2, F3 = standard F keys
  • Lock = locks the screen
  • Power button activates a Suspend, Restart, Shut Down dialog.

How can I conserve power on my Yuma 2?

The best way to conserve power on any mobile devices is to turn off WiFi, Bluetooth, GPS, and cellular modem when not in use. Turning down the screen brightness or reducing the CPU frequency can also extend battery life.

How much battery life can I expect out of my Yuma 2?

The maximum battery life with standard batteries (3000mAh each) is 8 hours, but will vary depending on usage. Optional extended capacity batteries (6000mAh each) are available that can provide up to 16 hours.

How do I backup (and restore) my files and applications?

Most of your files should be stored in your home folder (Places -> Home folder, or /Users/<username>/). You can simply copy any files fro that folder to another location such as a USB flash drive, USB hard drive, or network location. For automated backups, you can find a list of backup utilities here:


Is there a SDK available?

There is an Ubuntu SDK available for developers who would like to write or port apps to run on Ubuntu. Linux headers are available upon request. Please contact support@sdgsystems.com for details.

What applications can I install and where can I get them?

There are too many applications to list that can be installed on Linux, but many of the most popular applications can be installed using Ubuntu Software Center or Synaptic Package Manager. More details on options for installing software on Linux can be found here: