u-boot oxnas ext4ls usb /

OX820> ext4ls usb 0:1 /
<DIR>       4096 .
<DIR>       4096 ..
<DIR>      16384 lost+found
<DIR>       4096 proc
<DIR>       4096 usr
<DIR>          0 var
<DIR>          0 bin
<DIR>          0 root
<DIR>          0 sys
<DIR>          0 srv
<DIR>          0 sbin
<DIR>          0 opt
<DIR>          0 home
<DIR>          0 run
<DIR>          0 boot
<DIR>          0 lib
<DIR>          0 dev
<DIR>          0 etc
<DIR>          0 tmp
<DIR>          0 media
<DIR>          0 mnt