On regarde dans Gnome Disk, lsblk, lsusb et dmesg.

Exemple de dmesg

[67910.375561] usb 1-1: new high-speed USB device number 21 using xhci_hcd
[67910.578540] usb 1-1: New USB device found, idVendor=1058, idProduct=2621, bcdDevice=10.26
[67910.578557] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[67910.578566] usb 1-1: Product: Elements 2621
[67910.578573] usb 1-1: Manufacturer: Western Digital
[67910.578580] usb 1-1: SerialNumber: 575833324133303145584A52
[67910.582243] usb-storage 1-1:1.0: USB Mass Storage device detected
[67910.582975] scsi host3: usb-storage 1-1:1.0
[67911.592664] scsi 3:0:0:0: Direct-Access     WD       Elements 2621    1026 PQ: 0 ANSI: 6
[67911.593381] sd 3:0:0:0: Attached scsi generic sg1 type 0
[67911.595418] sd 3:0:0:0: [sdb] Spinning up disk...
[67912.615391] .....not responding...
[67917.272353] usb 1-1: USB disconnect, device number 21
[67917.280429] sd 3:0:0:0: [sdb] Read Capacity(10) failed: Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[67917.280451] sd 3:0:0:0: [sdb] Sense not available.
[67917.280481] sd 3:0:0:0: [sdb] 0 512-byte logical blocks: (0 B/0 B)
[67917.280493] sd 3:0:0:0: [sdb] 0-byte physical blocks
[67917.280520] sd 3:0:0:0: [sdb] Write Protect is off
[67917.280534] sd 3:0:0:0: [sdb] Mode Sense: 00 00 00 00
[67917.280553] sd 3:0:0:0: [sdb] Asking for cache data failed
[67917.280570] sd 3:0:0:0: [sdb] Assuming drive cache: write through
[67917.290348] sd 3:0:0:0: [sdb] Attached SCSI disk

Pour installer ftp.gnu.org/gnu/ddrescue