Squeeze locked my usb key
I was trying to put Squeeze (debian) on my eeepc, via an usb key. I used the command dd -if=***iso -of=mykey and everything worked, apparently. Squeeze was on the key, no problem. However, when I restarted my computer, the usb wasn't detected anymore. I tried on a Windows os, and got only a 200Mb key, in need of partitionning. No trace of my Squeeze (and the 7.8Go missing). I tried to format the key, but nothing execpt the 200Mb, empty.
I have no clue of what went wrong, and how I can get my whole key back.
Any help would be appreciated, I have at disposal Ubuntu 10.04 and Windows Vista or Seven to make whatever is necessary.
Many thank by advance.