我有一个加密的 Seagate 硬盘。插入后它不会自动挂载，因此我尝试使用sudo fdisk -l，这是我得到的输出。
Disk /dev/loop0: 81.7 MiB, 85692416 bytes, 167368 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: 298.1 GiB, 320072933376 bytes, 625142448 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: 0x2785c02a
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 625141759 625139712 298.1G 7 HPFS/NTFS/exFAT
Disk /dev/sdb: 1.8 TiB, 2000398933504 bytes, 3907029167 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 33553920 bytes
Disklabel type: dos
Disk identifier: 0x2a471c67
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 2048 3907029166 3907027119 1.8T 7 HPFS/NTFS/exFAT
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查看显示的驱动器的大小，下一个命令是sudo mount /dev/sdb1 /mnt，我收到的输出是：
mount: /mnt: special device /dev/sbd1 does not exist.
现在我该怎么做？