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From: druck <news@druck.org.uk>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Pi2 bootcode.bin puzzle
Date: Thu, 27 Mar 2025 13:57:55 +0000
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On 25/03/2025 23:50, bp@www.zefox.net wrote:
> I've even tried different usb-sata bridges. One in particular
> with an ASMT chipset that seemed to work everywhere else I tried
> it fails to boot. Plugged into a running Pi, or any other host,
> the disk seems to work fine with whatever bridge I try.
> 
> Probably this is just a limitation of the Pi2 v1.1 USB system.
> I've got another Pi2v1.1 with an old PATA disk roughly as old
> as the Pi2, that combo seems to work fine.

I didn't try booting from USB drives until the Pi 3B, but it wasn't 
until the Pi 4B with it's USB3 ports did that become really worthwhile 
to use SSDs.

> It just crossed my mind that I have another USB hard disk nearly
> as old as the Pi2. Maybe that could serve as a sanity check.
> Oops, guess not. It's a Western Digital MyBook, a NAS device.
> Rats!

It may still work on the Pi 2B, but being slower you may need to 
increase the value of rootwait in cmdline.txt - particularly if it is a 
spinning disc rather than an SSD - it could take 60 seconds before the 
drive is readable.

---druck