The firmware included with the Raspberry Pi 2 Model B version 1.2 introduced the possibility of booting from a USB device: before that, it was only possible to boot from an SD or microSD card. But ...
XDA Developers on MSN
4 reasons you shouldn't boot your Raspberry Pi from a microSD card
Discover the drawbacks of booting Raspberry Pi from SD cards and explore faster, more reliable alternatives for improved performance and longevity.
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