root@OpenWrt:/mnt# ls /mnt/
1wire usbflash
root@OpenWrt:/# lsusb
Bus 001 Device 004: ID 04fa:2490 Dallas Semiconductor DS1490F 2-in-1 Fob, 1-Wire adapter
Bus 001 Device 003: ID 0781:5567 SanDisk Corp. Cruszer Blade
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root@OpenWrt:/# fdisk -l
Disk /dev/sda: 8000 MB, 8000110592 bytes
160 heads, 19 sectors/track, 5139 cylinders
Units = cylinders of 3040 * 512 = 1556480 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 1 5140 7812592 b W95 FAT32
root@OpenWrt:/# mount /dev/sda1 /mnt/usbflash
mount: mounting /dev/sda1 on /mnt/usbflash failed: Invalid argument
root@OpenWrt:/# mount /dev/sda /mnt/usbflash
mount: mounting /dev/sda on /mnt/usbflash failed: Invalid argument
root@OpenWrt:/#