Data Recovery and Disk Utilities Forum @R-TT

Thanks for the suggestion. I will give it a go.

Hi everyone,
After creating a rescue bootable USB, I've been able to clone both a MacBook Air and an old Toshiba L-300 without a single problem. However, I simply can't start up a late-2009 iMac using the same procedure. The screen turns black and the cursor starts endlessly blinking.

I find it ...