Не монтируется флешка

mount /dev/sdb

mount: can't find /dev/sdb in /etc/fstab

notebook-0:/home/reedych # fdisk -l

Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 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: 0x0003419f

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sda1  *         2048 230692863 230690816   110G 83 Linux
/dev/sda2       230692864 968382463 737689600 351.8G 83 Linux
/dev/sda3       968382464 976773119   8390656     4G 82 Linux swap / Solaris

Disk /dev/sdb: 3.7 GiB, 3953131520 bytes, 7720960 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: 0x00000000