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On RaspPi 3B+..why can’t boot PiStar from USB
Posted: Tue Mar 16, 2021 11:19 am
by KI5MEF
Raspberry Pi 3B+ supports booting from USB drive .. and will using Raspberry Pi OS .. However, a Pi-Star image will not boot the Pi from a USB drive .. Why not?
Re: On RaspPi 3B+..why can’t boot PiStar from USB
Posted: Tue Mar 16, 2021 7:50 pm
by f1rmb
Hi,
None of the Pi can boot USB devices, you need tweak the bootloader config for this:
https://www.raspberrypi.org/documentati ... des/msd.md
I've done that on a Pi 4, to make it boot an SSD.
Cheers.
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Daniel
Re: On RaspPi 3B+..why can’t boot PiStar from USB
Posted: Tue Mar 16, 2021 8:32 pm
by f1rmb
KE7FNS wrote: ↑Tue Mar 16, 2021 8:06 pm
f1rmb wrote: ↑Tue Mar 16, 2021 7:50 pm
None of the Pi can boot USB devices, you need tweak the bootloader config for this:
From the documentation you referenced. Booting from USB mass storage is possible.
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On the Raspberry Pi 2B v1.2, 3A+, 3B, and Compute Module 3, 3+ you must first enable USB host boot mode. This is to allow USB mass storage boot, and network boot.
Yes, after changes to the bootloader config. But by default, a Pi boots the SD card only.
With a Raspbian, you can now use the raspi-config tool, which handles all of this.
Cheers.
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Daniel
Re: On RaspPi 3B+..why can’t boot PiStar from USB
Posted: Tue Mar 16, 2021 9:18 pm
by f1rmb
KE7FNS wrote: ↑Tue Mar 16, 2021 8:50 pm
f1rmb wrote: ↑Tue Mar 16, 2021 8:32 pm
Yes, after changes to the bootloader config. But by default, a Pi boots the SD card only.
With a Raspbian, you can now use the raspi-config tool, which handles all of this.
Not a RPi 3B+. It is listed right in the document you posted.
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Raspberry Pi 3B+
The Raspberry Pi 3B+ supports USB mass storage boot out of the box.
Ah. I might test this tomorrow.