Fraoch
Posts: 145
Joined: Thu Mar 07, 2013 11:53 pm
Location: Cambridge, Ontario, Canada

Very strange USB 3 adapter behaviour

Sat Jul 27, 2019 5:58 am

I just got the following:

https://www.amazon.ca/gp/product/B077S6 ... UTF8&psc=1

and put a 2242 M.2 SSD in it.

It tests really well in Linux Mint, but I have very strange behaviour with it in my Pi4.

It was so unstable at first and uses the problematic JMicron controller (152d:0578 JMicron Technology Corp. / JMicron USA Technology Corp. JMS567 SATA 6Gb/s bridge) so I set the USB quirk like so https://www.raspberrypi.org/forums/view ... 8&t=245931.

That allowed me to boot with it inserted, but if I happened to insert it with the Pi4 already booted, it always crashes LXDE.

When I tried to boot from it following these instructions: https://jamesachambers.com/raspberry-pi ... sh-drives/ it behaved like it would on first boot but all USB ports were locked up! No keyboard or mouse would work, including any plugged in during boot. None of the USB 2 or 3 ports would respond.

Even stranger, if you take a look at those instructions, the PARTUUID on both my previous SSD that I was booting from and this new one are the same. That should not happen?

Any advice, or is this just a weird adapter? It's too bad, it's nice & small and self-contained.
Pencoed-made Model 1B, Samsung memory
2B 1.1
3B+
4B 2GB

andrum99
Posts: 1027
Joined: Fri Jul 20, 2012 2:41 pm

Re: Very strange USB 3 adapter behaviour

Sat Jul 27, 2019 10:59 am

Fraoch wrote:
Sat Jul 27, 2019 5:58 am
Even stranger, if you take a look at those instructions, the PARTUUID on both my previous SSD that I was booting from and this new one are the same. That should not happen?
That is normal - the PARTUUID is the same for all installations of Raspbian. This is because the installer images part of the SD card with an exact copy of each partition. It then resizes the root partition to take up all available space.

Sorry I can't help with the rest.

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