Following tut

Everything goes good up to u-boot.mot

unrecognized command ???I??@??@??&0Rl*ritten, args[0][0] 0xfa
dbox2:root> ,???2??8???F???L???R?Y? ?
unrecognized command ,???2??8???F???L???R?Y? ?, args[0][0] 0x2c
dbox2:root> ?????B?B?????C???L\C???C???$D??tDD????D???,<E?d??? ???rq??t??
??????B?B?????C???L\C???C???$D??tDD????D???,<E?d?? ????EE?FF??? eo8/ ad 0
2??????B?B?????C???L\C???C???$D??tDD????D???,<E?d? ?????EE?FF??? eo8/ ad
??????B?B?????C???L\C???C???$D??tDD????D???,<E?d?? ????EE?FF??? eo8/ ad 0
??????B?B?????C???L\C???C???$D??tDD????D???,<E?d?? ????EE?FF??? eo8/ ad
??????B?B?????C???L\C???C???$D??tDD????D???,<E?d?? ????EE?FF??? eo8/ ad 0
??????B?B?????C???L\C???C???$D??tDD????D???,<E?d?? ????EE?FF??? eo8/ ad
0y27=e4m?rq??t??#+3;CScs????
unrecognized command ??????B?B?????C???L\C???C???$D??tDD????D???,<E?d??
????EE?FF??? eo8/, args[0][0] 0xa0
dbox2:root>
dbox2:root>
dbox2:root>
unrecognized command , args[0][0] 0xff
dbox2:root> ?j??????@_?? ???B??????
unrecognized command ?j??????@_??, args[0][0] 0xf4
dbox2:root> ??\???O??? ?????? ??N???? ??
unrecognized command ??\???O??? ?????? ??N???? ??, args[0][0] 0x80
dbox2:root> ?????p????????b???????
unrecognized command ?????p????????b???????, args[0][0] 0xd0
dbox2:root> ?X????x???????

On this last line of code the cursor stops midway in the line code

So I copy and paste to host chorus 800000 as soon as this is done this appears

unrecognized command ?X????chx???????, args[0][0] 0xc4

So I try again
dbox2:root> chorus 800000

and this comes up

chorus 0x800000
elfCopy failed: 16
dbox2:root>

Please advise?