Subj : How to boot from SD but run from USB?
To   : All
From : Chris Green
Date : Thu Jan 23 2025 22:12:39

I'm sure this is basically easy but I can't find a simple description
of how to do it.  If you search for anything about 'boot' and 'USB'
you are immediately flooded with descriptions of how to boot from USB
and that's not what I want.

I have an ancient Pi B+ that does all I need where it is but I'd like
to be less reliant on the SD card.  You can't (easily) boot such an
old Pi from USB and I don't really need to, I just want to make it so
that once booted all activity is on a USB drive.

Is it simply a matter of leaving /boot on the SD card and changing /
to being a USB drive or does one need to edit something in /boot
somewhere?

--
Chris Green
·

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