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/etc/apt/sources.list for Ubuntu 18.04.1 LTS Bionic Beaver
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So while looking for information on security keys before getting one myself, I got very confused reading about all the different modes and advertised features of Yubikeys and other similar dongles. The official documentation tends to be surprisingly convoluted at times, weirdly organized and oddly shy about a few of the limitations of these keys (which I'm making a point of putting front and center). Now that I have one, I decided to write down everything I figured out in order to help myself (and hopefully some other people reading this) make sense of all this.
Since I'm partly writing these notes for myself, there might be some back and forth between "exp
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Checking your Raspberry Pi's view of its power supply (sometimes it's not the wall-wart)
Checking your Raspberry Pi's view of its power supply
Sometimes it seems like the first (and sometimes only) advice you get offered for almost any problem with a Raspberry Pi is "check your power supply". You think something like:
"hey, I'm using an official power supply sold as being matched with my Pi so how can there be any problem?"
You look up the specs then stick a controlled load across your supply and confirm that it can deliver the required number of Watts.