Flash OpenATV onto Dreambox 525 running OpenPLi


Hello ,

I want to flash openatv to install wooshbuild on a DM525 , box is currently running openpli and I want to reflash with OpenATV.
I have downloaded the latest 6.3 openatv build.
Anyone know the command to install from the command prompt. Have ftp the tar.xz file across to the /tmp folder .
Can't seem to locate the command to execute it .
Any help?