Code:

~$ sudo fdisk -l Disk /dev/loop0: 81.4 MiB, 85385216 bytes, 166768 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop1: 81.4 MiB, 85348352 bytes, 166696 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop2: 80.5 MiB, 84393984 bytes, 164832 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/loop3: 111.7 MiB, 117141504 bytes, 228792 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/sda: 111.8 GiB, 120034123776 bytes, 234441648 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: 5F8B70C2-E65A-4614-A488-C9B88016925F Device Start End Sectors Size Type /dev/sda1 2048 1050623 1048576 512M EFI System /dev/sda2 1050624 201005055 199954432 95.4G Linux filesystem /dev/sda3 201005056 234440703 33435648 16G Linux swap Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x0002d122 Device Boot Start End Sectors Size Id Type /dev/sdb1 63 1953525167 1953525105 931.5G 83 Linux Partition 1 does not start on physical sector boundary. Disk /dev/sdc: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk /dev/sde: 57.7 GiB, 61983424512 bytes, 121061376 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x44fdc91c Device Boot Start End Sectors Size Id Type /dev/sde1 36112 121061375 121025264 57.7G c W95 FAT32 (LBA) ~$ sudo mkdir /media/usb-drive-0x44fdc91c ~$ sudo mount /dev/sde /media/usb-drive-0x44fdc91c mount: wrong fs type, bad option, bad superblock on /dev/sde, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so. ~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 81.4M 1 loop /snap/core/2898 sdb 8:16 0 931.5G 0 disk └─sdb1 8:17 0 931.5G 0 part /media/user/Backup Data loop2 7:2 0 80.5M 1 loop /snap/core/2462 sde 8:64 1 57.7G 0 disk └─sde1 8:65 1 57.7G 0 part loop0 7:0 0 81.4M 1 loop /snap/core/2774 sdc 8:32 0 931.5G 0 disk sda 8:0 0 111.8G 0 disk ├─sda2 8:2 0 95.4G 0 part / ├─sda3 8:3 0 16G 0 part [SWAP] └─sda1 8:1 0 512M 0 part /boot/efi loop3 7:3 0 111.7M 1 loop /snap/simplenote/2 ~$ sudo parted /dev/sde p Model: Kingston DataTraveler 3.0 (scsi) Disk /dev/sde: 62.0GB Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size Type File system Flags 1 18.5MB 62.0GB 62.0GB primary lba ~$ sudo mount /dev/sde1 /mnt mount: /dev/sde1: can't read superblock ~$ dmesg | tail -n 20 [ 9038.943217] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9039.107206] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9039.279197] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9039.300347] sd 6:0:0:0: [sde] Unaligned partial completion (resid=1011, sector_sz=512) [ 9039.300350] sd 6:0:0:0: [sde] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [ 9039.300352] sd 6:0:0:0: [sde] tag#0 CDB: Read(10) 28 00 00 00 8d 12 00 00 02 00 [ 9039.300353] blk_update_request: I/O error, dev sde, sector 36114 [ 9039.300373] EXT4-fs (sde1): unable to read superblock [ 9039.427168] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9039.591177] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9039.763161] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9039.931155] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9040.099200] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9040.263136] usb 4-1: reset SuperSpeed USB device number 2 using xhci_hcd [ 9040.284304] sd 6:0:0:0: [sde] Unaligned partial completion (resid=1011, sector_sz=512) [ 9040.284307] sd 6:0:0:0: [sde] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [ 9040.284309] sd 6:0:0:0: [sde] tag#0 CDB: Read(10) 28 00 00 00 8d 10 00 00 02 00 [ 9040.284310] blk_update_request: I/O error, dev sde, sector 36112 [ 9040.284329] SQUASHFS error: squashfs_read_data failed to read block 0x0 [ 9040.284331] squashfs: SQUASHFS error: unable to read squashfs_super_block ~$ sudo gparted ====================== libparted : 3.2 ====================== Input/output error during read on /dev/sde Input/output error during read on /dev/sde Input/output error during read on /dev/sde Input/output error during read on /dev/sde /dev/sde: unrecognised disk label Input/output error during read on /dev/sde ~$ sudo cfdisk ~$ sudo cfdisk /dev/sde cfdisk: cannot open /dev/sde: Input/output error ~$ sudo fsck /dev/sde fsck from util-linux 2.27.1 e2fsck 1.42.13 (17-May-2015) fsck.ext2: Attempt to read block from filesystem resulted in short read while trying to open /dev/sde Could this be a zero-length partition?