Error: /dev/sdb: unrecognised disk label
mount: special device /dev/sdb1 does not exist
total 8
drwxr-xr-x 2 root root 4096 okt 25 23:04 .
drwxr-xr-x 3 root root 4096 okt 25 23:04 ..
umount: /dev/sdb1: not found