Writing the Image to a USB Stick

The downloaded file is a full compressed drive image with all partions.


Decompress and copy to a blank / unused USB Stick using a command such as dd: (Note that all previous contents on the USB stick will be wiped!)

gzip -dc IMAGENAME.img.gz | sudo dd of=/dev/YOUR_USB_DEVICE


Download Win32DiskImager (and install it). Then unpack the .img.gz file using something a tool like 7-zip. Run W32DiskImager.exe, and select the unpacked .img file. Choose the drive that corresponds to your USB stick and use “Write” to write the image.

Booting from USB

Insert the USB stick into your Joggler, and turn the power on. It should boot to the Desktop. To run a command with root privileges use “sudo”. The default user and password if/when requested for certain tasks is:

User: joggler
Pass: joggler

You can (and probably should) change this password at your next convenience, either using the Gnome user management tools or from a terminal using “passwd”.

Overheating / Throttling issues

As you may be aware, the Joggler has problems with the cpu throttling when the temperature reaches 70°C making the system pretty unusable. Previously people have solved this by adding larger heatsinks which improve cooling (Often cutting the case to make space etc). Hacking the Joggler hardware is not something everyone wants to do, but fortunately there is an alternative – you can modify the thermal trip point via software. An unmodified Joggler, after being powered up for some time seems to idle at around 60 – 66°C with the LCD on (less with it off), so it doesn’t take a lot of usage to bring the temperature up to 70°C at which point the throttling starts. By increasing the throttling trip point, the device becomes much more usable for longer periods, and for many tasks, doesn’t throttle at all. Read on to find out how.

Note if you make the changes below you are allowing the machine to run hotter than it is set to run by the firmware. You could permanently damage your device by playing with the thermal trip points. Do this at your own risk!

The default throttling trip point is 70°C. I have successfully increased this to 80°C on my Joggler. There is another safety trip point at 100°C where the cpu will halt/stop. We won’t of course be playing with that one. Boot up the image and enter a terminal and type.

sudo nano -w /boot/grub.cfg

At the end of the line that contains “splash” add the parameter “thermal.psv=xx” where xx is the trip point you want for the passive cooling (throttling) – for example to increase the passive throttling point to 80°C use “thermal.psv=80”. This means that your machine will not start throttling until it reaches 80°C rather than 70°C. It is possible this could shorten the life of your device, however I have been running my Jogglers like this for years with no problems.

I also recommend you read up in on the various
thermal.* parameters before trying this so you are familiar with the settings and risks.

Right mouse button / secondary click from touchscreen

For a right-mouse click press and hold your finger on the touchscreen for 1 second.

Moving windows when they do not fit on the screen

Bringing up the on-screen keyboard, and pressing the left alt, and then tapping on a window will allow you to drag it. This is useful in the case where some of the contents of a window are off the screen. You can also configure utilities like “easystroke” to use simple gestures for actions like this.