Re: [gentoo-user] USB NVMe connection problem

[Peter Humphrey <peter@prh.myzen.co.uk>]

On Sunday, 30 March 2025 14:19:47 British Summer Time Michael wrote:
> On Sunday, 30 March 2025 13:45:09 British Summer Time Peter Humphrey wrote:

--->8

> > sd 2:0:0:0: [sda] Read Capacity(10) failed: Result: hostbyte=DID_OK
> > driverbyte=DRIVER_OK sd 2:0:0:0: [sda] Sense Key : Illegal Request
> > [current]
> 
> This "Sense Key" is the response from the block device.  It means some
> command data sent to it was deemed to be illegal and the device bailed out
> from executing the command.  More details to make sense of this message may
> be in the SCSI specification.

Interesting.

> > sd 2:0:0:0: [sda] Add. Sense: Invalid field in cdb
> > sd 2:0:0:0: [sda] 0 512-byte logical blocks: (0 B/0 B)
> > sd 2:0:0:0: [sda] 0-byte physical blocks
> > sd 2:0:0:0: [sda] Write Protect is off
> > sd 2:0:0:0: [sda] Mode Sense: 37 00 00 08
> > sd 2:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't
> > support DPO or FUA sd 2:0:0:0: [sda] Attached SCSI disk
> 
> Does lsblk -a show the partition(s) on the device?

It shows a disk of size 0. (I keep forgetting to try lsblk, which I haven't 
had to use until this exercise began.)

> Does your Ugreen enclosure come with an external power supply

Nope.

> You've already tried it on different PCs, so this problem is not isolated to
> a single PC.
> 
> Have you removed the SSD and connected it directly to the MoBo without any
> USB intermediary?  This will separate a USB Vs SSD hardware problem.

I've a nasty feeling I damaged the SSD by applying too much force while 
installing it. Cracked track, or something. If so, I don't feel I should 
return it as faulty.

[Slumps shoulders...]

Can I justify starting again and spending yet more hundreds? That's the 
question. Especially as the spinning disk it was to replace hasn't failed yet.

-- 
Regards,
Peter.