Ola
entre em seu fstab e comente com uma cerquilha "#" a entrada para o sdb1 para testar.
Original
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda7 during installation
UUID=5ae9fffe-c110-467d-987d-9f3ea1654f2d / ext4 errors=remount-ro 0 1
# swap was on /dev/sda6 during installation
UUID=f5fb163e-5398-4756-975f-69afc6ee9ceb none swap sw 0 0
/dev/sdb1 /media/sdb1 vfat defaults 0 0
Modificado:
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda7 during installation
UUID=5ae9fffe-c110-467d-987d-9f3ea1654f2d / ext4 errors=remount-ro 0 1
# swap was on /dev/sda6 during installation
UUID=f5fb163e-5398-4756-975f-69afc6ee9ceb none swap sw 0 0
# /dev/sdb1 /media/sdb1 vfat defaults 0 0
para isto, entre em terminal e digite
sudo cp /etc/fstab /etc/fstab.bak
sudo gedit /etc/fstab
Salve e reinicie para ver.
Se algo der errado basta renomear a copia fstab.bak para fstab novamente.
[]'s