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A comment on I'm booting my Raspberry Pi 4 from a USB SSD. Parent comment

Re:I'm booting my Raspberry Pi 4 from a USB SSD by dividuum on Wednesday June 10, 2020 @06:26AM (#23475575)
Yes. The Pi3 could always boot from USB once you enable[1] it. The difference with the Pi4 is that it's initial boot eeprom is now updatable. The first release didn't include the option for USB booting. It has just recently been added [2].

[1] https://www.raspberrypi.org/documentation/hardware/raspberry...

[2] https://github.com/raspberrypi/rpi-eeprom/blob/master/firmwa...

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Re:I'm booting my Raspberry Pi 4 from a USB SSD by geerlingguy on Wednesday June 10, 2020 @07:56AM (#23476070)
The other major difference is the Pi 4 has USB 3.0 and the network interface is not on the same bus. So, while the 3/3+ also benefit from USB boot, the 4 can benefit quite a bit further!
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