need help with usb storage

[Yakamashii]

i have a gl ar150 with 1.1.3 nano firmware on it (http://www.securityaddicted.com/2016/11/17/weaponizing-gl-inet-gl-ar150/) and my fstab is (

config global automount
       option from_fstab 1
       option anon_mount 1

config global autoswap
       option from_fstab 1
       option anon_swap 1

config mount
       option target   /usb
       option device   /dev/sdb1
       option fstype   ext4
       option options  rw,sync
       option enabled  1
       option enabled_fsck 0

config swap
       option device   /dev/sdb2
       option enabled  1

)

i cannot get my usb to work.

it is a 16gb drive, formatted into ext4.

 

i heard about swap space, but have no idea how to set that up or why.

 

 

if anyone has suggestions for me to try please give them to me.