Richard Hayler posted up a nice tutorial for squeezing Raspbrian Jessie onto your 4GB SD card – check it out here.
The promise of sudo-free access to GPIO was just too tempting so, despite the fact that I’d only created the whole club set of fresh SD cards before the start of term, I decided to re-create them with the fab new Jessie image.
The challenge: We have a bunch of original model Bs which are still perfectly good for a lot of the circuit based activities but they all have 4GB SD cards. I could just buy a bunch of 8GB ones, but that seemed like a waste.
But the new Jessie image clocks in at over 4.3GB. Here’s how I made it fit. It might look a little daunting but its actually quite straight forward. the only tricky bit I found was keeping track of the cards at the various steps. There is probably an easier way of doing it, but this worked for me and only took an hour (with most of that time taken by waiting for the cards/partitions to copy).
What you’ll need:
- A 4GB SD card (call it card F) with a working (but un-needed) Wheezy installation (card M) , a blank 8GB SD card and one at least 16GB card with a working Raspbian installation (card S) or another Linux/Mac machine with enough free space to store GBs of images.
- An SD card reader
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