Boot profiling on the RaspberryPi with bootchart

I have recently been playing with bootchart on my desktop and decided to try it out on the Raspberry Pi.

"Bootchart is a tool for performance analysis and visualization of the GNU/Linux boot process. Resource utilization and process information are collected during the boot process and are later rendered in a PNG, SVG or EPS encoded chart." http://www.bootchart.org/


Raspbian - Connecting a bluetooth GPS using the command line

Following on from my earlier article - Connecting a bluetooth keyboard using the command line - I will now look at what is needed to connect a GPS device to my Raspberry Pi via bluetooth.

I covered installing both bluetooth and bluez - the Linux bluetooth stack - in the earlier article, so this is a good place to start if these have not been installed.


Raspbian - Connecting a bluetooth keyboard using the command line


So... I initially had some issues attaching my bluetooth keyboard to my Pi, many articles out there suggested carrying this out using a graphical bluetooth manager, however, I didn't have a spare USB keyboard or mouse that I could "bootstrap" the process with. I finally managed to get it attached using ssh to connect to the command line with the following.


Firstly, we need to install bluetooth and bluez-utils as follows:


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