Problems Downgrading

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while trying downgrade lion, faced issue;
1. after creating lion usb boot key reboot, , hold down option
2. after selecting boot usb instead of booting lion utilities this:

[​img]

can tell me what's going wrong, , how fix it?
 

it doesn't usb key created.
try again.
, next time, install beta os on external usb drive have working system fall too, geez.

can't hold down command-r , restore on internet?
 


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