download custom busybox whitch chroot applet.You can dowload it from here. Write full patch to your busybox instead of /dtv/usb/sda2 (you could place it in /mtd_rwarea too.)
Full instruction i wrote on russian forum, might it helps you... I going to re-write samygo wiki article about native toolchain in near future...
Compiling Linksys WUSB600N v2 - LE32B65x
Re: Compiling Linksys WUSB600N v2 - LE32B65x
LE40B653T5W,UE40D6750,UE65Q8C
Have questions? Read SamyGO Wiki, Search on forum first!
FFB (v0.8), FFB for CI+ . Get root on: C series, D series, E series, F series, H series. rooting K series, exeDSP/exeTV patches[C/D/E/F/H]
DO NOT EVER INSTALL FIRMWARE UPGRADE
Have questions? Read SamyGO Wiki, Search on forum first!
FFB (v0.8), FFB for CI+ . Get root on: C series, D series, E series, F series, H series. rooting K series, exeDSP/exeTV patches[C/D/E/F/H]
DO NOT EVER INSTALL FIRMWARE UPGRADE