BBS:      TELESC.NET.BR
Assunto:  Re: crazy problem with pi4 and ssd
De:       bp
Data:     Fri, 29 May 2026 17:00:02 +1100
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The Natural Philosopher  wrote:
> On 28/05/2026 16:38, Mike Scott wrote:
>> On 28/05/2026 16:27, Mike Scott wrote:
>>> there seems to be no obvious fault with the ssd as such - it was 
>>> working as expected when put into storage, and a scan with badblock -w 
>>> is currently at 80% with no errors.
>>>
>> 
>> I should add, the pi4 is running from the spinner, while checking the 
>> ssd. 89% checked, 0 errors as I write.
>> 
>> Also, a second pi4 has the same issue, so it's not a faulty pi4.
>> 
> Some disks with some USB adapters simply do not work
> 

Two thoughts: 

Try a different USB bridge on the SSD. 
Some behave better than others. 

Maybe try different software on the SSD. I've worked 
quite a bit with FreeBSD, It lets the Pi firmware
start u-boot to find the disk. Maybe that'll work
or give some opportunity to tinker with the disk
probe (changing usb_pgood_delay in uboot.env has
been helpful in some cases). 

You'd want 
https://download.freebsd.org/releases/arm64/aarch64/ISO-IMAGES/15.0/FreeBSD-15.0-RELEASE-arm64-aarch64-RPI.img.xz

FreeBSD won't solve the problem, but it might provide some insights.
You might need a serial console to see what's going on.

hth,

bob prohaska

--- PyGate Linux v1.5.15
 * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

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