![]() However, for a Raspberry Pi Zero, with a single processing core and 512MB RAM, useless services quickly become a performance bottleneck. After all, these computers are designed for GUI interfaces from the ground up. In a computer like a modern PC with multiple CPU cores and lots of RAM, this is not a big consideration. These services do things such as checking for mouse of keyboard events, redraw the screen and handle user notifications.Īll these things take up valuable CPU and memory resources. A regular GUI operating systems contains hundreds of background services that are constantly running. The longest uninterrupted stretch was 9 months, which is amazing.Īnother advantage of headless computers and Lite operating systems is performance. I admit that I had to restart it a few times due to power outages. My Raspberry Pi 1 is still running the original Full Stack application and Raspbian Wheezy (the first version of Raspbian from 2013) since 2014. In this project, you will create an application that operates as an automated service, reliably, non-stop, for ever. Even the best of those must be restarted regularly. This is impossible to ask from a full desktop operating system. Those computers can run for years without a reboot, reliably servicing end user requests. Headless computers typically run minimal operating systems so that the risk software bugs and conflicts between services is minimised. Backing up an 8GByte SD Card (which can easily accommodate Raspbian Lite) take half the amount of time that you need for the same thing when you use a 16GByte SD Card (which is the smallest recommended size for the full Raspbian).Īnother advantage is reliability. In this project I will show you how to backup and restore your work stored on the SD Card. ![]() This means that maintenance and backup/restore operations are faster simply because there are fewer bytes to work with. Apart from those differences I have already mentioned, the table a few additional yet just as important ones.Ī headless operating system without GUI components and applications has a very small footprint on the disk.
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