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From: The Natural Philosopher <tnp@invalid.invalid>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: How to boot from SD but run from USB?
Date: Fri, 24 Jan 2025 13:16:36 +0000
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On 24/01/2025 12:55, Chris Green wrote:
> The Natural Philosopher <tnp@invalid.invalid> wrote:
>>
>> But frankly its almost always easier to install everything on the USB
>> drive and remove the SDcard altogether.
>>
> As I understand it that's not possible with Pi before Pi 2 version 1.2
> or something like that.  Basically Pi 3 and onwards can simply boot
> from USB, earlier ones can't.
> 

Yes, that is my understanding also. I think there was a time when you 
had to boot from SD and run a comm,and to change a flag in the firmware 
to allow USB only boot.

I have a Pi 4B and its supremely ecstatic booting from USB. And it's a 
totally simple setup



-- 
“Progress is precisely that which rules and regulations did not foresee,”

  – Ludwig von Mises