粉碎命令被不相关的和用户引起的系统停止中断。
现在我无法使用lsblk -l.尝试过多个linux系统。
这回答（从检测到外部硬盘，但无法识别。无法挂载、无法格式化、无法分区）指向外部力量，我怀疑这是原因，因为我首先能够撕碎。
journalctl -b
Nov 03 15:48:44 x kernel: usb 1-1.1.4: new high-speed USB device number 7 using ehci-pci
Nov 03 15:48:44 x kernel: usb 1-1.1.4: New USB device found, idVendor=174c, idProduct=55aa, bcdDevice= 1.00
Nov 03 15:48:44 x kernel: usb 1-1.1.4: New USB device strings: Mfr=2, Product=3, SerialNumber=1
Nov 03 15:48:44 x kernel: usb 1-1.1.4: Product: ASMT1051
Nov 03 15:48:44 x kernel: usb 1-1.1.4: Manufacturer: asmedia
Nov 03 15:48:44 x kernel: usb 1-1.1.4: SerialNumber: 123456789012
Nov 03 15:48:44 x kernel: usb-storage 1-1.1.4:1.0: USB Mass Storage device detected
Nov 03 15:48:44 x kernel: usb-storage 1-1.1.4:1.0: Quirks match for vid 174c pid 55aa: 400000
Nov 03 15:48:44 x kernel: scsi host6: usb-storage 1-1.1.4:1.0
Nov 03 15:48:44 x kernel: usbcore: registered new interface driver usb-storage
Nov 03 15:48:44 x kernel: usbcore: registered new interface driver uas
Nov 03 15:48:45 x kernel: scsi 6:0:0:0: Direct-Access ASMT 2105 0 PQ: 0 ANSI: 6
Nov 03 15:48:45 x kernel: sd 6:0:0:0: [sdb] Spinning up disk...
Nov 03 15:50:47 x kernel: sd 6:0:0:0: [sdb] Read Capacity(16) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Nov 03 15:50:47 x kernel: sd 6:0:0:0: [sdb] Sense Key : Not Ready [current]
Nov 03 15:50:47 x kernel: sd 6:0:0:0: [sdb] Add. Sense: Logical unit is in process of becoming ready
Nov 03 15:51:07 x kernel: sd 6:0:0:0: [sdb] Read Capacity(10) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Nov 03 15:51:07 x kernel: sd 6:0:0:0: [sdb] Sense Key : Not Ready [current]
Nov 03 15:51:07 x kernel: sd 6:0:0:0: [sdb] Add. Sense: Logical unit is in process of becoming ready
Nov 03 15:51:07 x kernel: sd 6:0:0:0: [sdb] 0 512-byte logical blocks: (0 B/0 B)
Nov 03 15:51:07 x kernel: sd 6:0:0:0: [sdb] 0-byte physical blocks
Nov 03 15:51:14 x kernel: sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Nov 03 15:51:21 x kernel: sd 6:0:0:0: [sdb] Asking for cache data failed
Nov 03 15:51:21 x kernel: sd 6:0:0:0: [sdb] Assuming drive cache: write through
Nov 03 15:51:21 x kernel: sd 6:0:0:0: [sdb] Spinning up disk...
Nov 03 15:53:22 x kernel: sd 6:0:0:0: [sdb] Read Capacity(16) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Nov 03 15:53:22 x kernel: sd 6:0:0:0: [sdb] Sense Key : Not Ready [current]
Nov 03 15:53:22 x kernel: sd 6:0:0:0: [sdb] Add. Sense: Logical unit is in process of becoming ready
Nov 03 15:53:43 x kernel: sd 6:0:0:0: [sdb] Read Capacity(10) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Nov 03 15:53:43 x kernel: sd 6:0:0:0: [sdb] Sense Key : Not Ready [current]
Nov 03 15:53:43 x kernel: sd 6:0:0:0: [sdb] Add. Sense: Logical unit is in process of becoming ready
Nov 03 15:53:57 x kernel: sd 6:0:0:0: [sdb] Attached SCSI disk
Nov 03 15:56:15 x kernel: sd 6:0:0:0: [sdb] Spinning up disk...
Nov 03 15:58:16 x kernel: sd 6:0:0:0: [sdb] Read Capacity(16) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Nov 03 15:58:16 x kernel: sd 6:0:0:0: [sdb] Sense Key : Not Ready [current]
Nov 03 15:58:16 x kernel: sd 6:0:0:0: [sdb] Add. Sense: Logical unit is in process of becoming ready
Nov 03 15:58:37 x kernel: sd 6:0:0:0: [sdb] Read Capacity(10) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Nov 03 15:58:37 x kernel: sd 6:0:0:0: [sdb] Sense Key : Not Ready [current]
Nov 03 15:58:37 x kernel: sd 6:0:0:0: [sdb] Add. Sense: Logical unit is in process of becoming ready
粉碎命令：
sudo shred -vzn 0 /dev/sdb
lsblk-l
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 119.2G 0 disk
sda1 8:1 0 100M 0 part /boot/efi
sda2 8:2 0 250M 0 part /boot
sda3 8:3 0 118.9G 0 part
luks 254:0 0 118.9G 0 crypt
Arch-swap 254:1 0 512M 0 lvm [SWAP]
Arch-root 254:2 0 118.4G 0 lvm /