我正在尝试通过 USB 电缆将一些数据从外部硬盘复制到我的电脑。似乎设备可见，但分区表未知。
以下是 lsblk、fdisk 和 parted 的输出。我的外部设备是sda
$ lsblk
...
nvme0n1 259:0 0 953.9G 0 disk
├─nvme0n1p3 259:3 0 977M 0 part [SWAP]
├─nvme0n1p1 259:1 0 512M 0 part /boot/efi
└─nvme0n1p2 259:2 0 952.4G 0 part /
sda 8:0 0 465.8G 0 disk
$ sudo fdisk -l
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: ...
Device Start End Sectors Size Type
/dev/nvme0n1p1 2048 1050623 1048576 512M EFI System
/dev/nvme0n1p2 1050624 1998407679 1997357056 952.4G Linux filesystem
/dev/nvme0n1p3 1998407680 2000408575 2000896 977M Linux swap
Disk /dev/sda: 465.8 GiB, 500076404736 bytes, 976711728 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
$ sudo parted -l
Error: /dev/sda: unrecognised disk label
Model: BUFFALO HD-LXU3 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:
Model: NVMe Device (nvme)
Disk /dev/nvme0n1: 1024GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 538MB 537MB fat32 EFI System Partition boot, esp
2 538MB 1023GB 1023GB ext4
3 1023GB 1024GB 1024MB linux-swap(v1)
我还使用该实用程序检查了驱动器Disk，但在卷下我只得到“500 GB 未知”以及：
Size: 500 GB (500,076,404,736 bytes)
Device: /dev/sda
Contents: Unknown
至于尝试安装设备：
$ sudo mount /dev/sda /media/nananana
mount: wrong fs type, bad option, bad superblock on /dev/sda,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so.
任何提示将非常感谢。