White screen with question mark after installing SSD
I have changed HDD to SDD (Samsung EVO ) on my old iMac 2009 (earlier version, with not pluggable sensor for HDD) and cannot install OS from bootable USB because after clicking on the selected bootable device I see a white screen with a picture of the directory and a question mark in the middle. I was able to install Ubuntu from bootable USB without any problems. So, SSD works fine. And I was able to install Mac OS connecting SSD to macbook and then I have tried to put that SSD to iMac but it does not boot. Command + R or other combinations do nothing, only able to choose bootable device pressing Option button works. Any suggestions or ideas what could be wrong?
Is this a good question?