nemo@ithaka:/$ sudo mount /dev/sdb1
mount: can't find /dev/sdb1 in /etc/fstab or /etc/mtab
nemo@ithaka:/$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 931.5G  0 disk 
├─sda1   8:1    0   512M  0 part /boot/efi
├─sda2   8:2    0 915.1G  0 part /
└─sda3   8:3    0  15.9G  0 part [SWAP]
sdb      8:16   0 298.1G  0 disk 
└─sdb1   8:17   0 298.1G  0 part 
sr0     11:0    1  1024M  0 rom