The last message seems to say that the USB device disconnected a couple minutes after it was plugged in.
The sd in sdg stands for scsi disk. Prior to nvme, in Linux, storage tends to be treated as scsi disks because regardless of connection technology (USB, SATA, SAS, etc) the underlying commands sent to devices were scsi commands. On Wed, Jan 3, 2024, 15:48 Rich Shepard <rshep...@appl-ecosys.com> wrote: > On Wed, 3 Jan 2024, Russell Senior wrote: > > > Look in dmesg output after plugging it in: > > dmesg -T (provides decoded timestamps) > > Russell, > > Good idea. Thanks. > > [Wed Jan 3 14:13:21 2024] usb 1-11: new high-speed USB device number 2 > using xhci_hcd > [Wed Jan 3 14:13:21 2024] usb 1-11: New USB device found, idVendor=1f75, > idProduct=0611, bcdDevice= 0.06 > [Wed Jan 3 14:13:21 2024] usb 1-11: New USB device strings: Mfr=4, > Product=5, SerialNumber=6 > [Wed Jan 3 14:13:21 2024] usb 1-11: Product: XT-U33502 > [Wed Jan 3 14:13:21 2024] usb 1-11: Manufacturer: XinTop > [Wed Jan 3 14:13:21 2024] usb 1-11: SerialNumber: 20230921 > [Wed Jan 3 14:13:21 2024] usb-storage 1-11:1.0: USB Mass Storage device > detected > [Wed Jan 3 14:13:21 2024] scsi host10: usb-storage 1-11:1.0 > [Wed Jan 3 14:13:22 2024] scsi host10: scsi scan: INQUIRY result too > short (5), using 36 > [Wed Jan 3 14:13:22 2024] scsi 10:0:0:0: Direct-Access XinTop > XT-U33502 PQ: 0 ANSI: 0 > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] Very big device. Trying to > use READ CAPACITY(16). > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] 7814037168 512-byte logical > blocks: (4.00 TB/3.64 TiB) > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] Write Protect is off > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] Mode Sense: 3b 00 00 00 > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] No Caching mode page found > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] Assuming drive cache: write > through > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] Very big device. Trying to > use READ CAPACITY(16). > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] Very big device. Trying to > use READ CAPACITY(16). > [Wed Jan 3 14:13:22 2024] sd 10:0:0:0: [sdg] Attached SCSI disk > [Wed Jan 3 14:15:17 2024] usb 1-11: USB disconnect, device number 2 > > But, `fdisk -l' didn't display any information for /dev/sdg/. That's what I > looked for. After all the RAM drives, and the M.2 SSD drive, were the SCSI > SSD and HDD drives sda--sdf. > > Why is the device type changed to `sd' from `scsi?' > > I'll continue looking for sdg. > > Regards, > > Rich >
