High Sierra clean install failure
Hello, I am coming back with my same long lasting issue:
I have been trying for days to re-install macOS High Sierra on my iMac27 late 2009
I am booting on a USB key "Install macOS High Sierra"
I erased my HD and formated it Mac OS Extended (journaled)
now, when I click Install macOS in the recovery menu, i get this message "Alert: macOS High Sierra cannot be installed on this computer", and that's it. No additional information about the reason of this message.
I tried the process again after changing the date in the terminal, tried several different date but always get the same result.
I must say that I successfully installed High Sierra last week but decided to re-install it again after I messed up with the inatallation of Office. And I get the issue since then.
Just in case someone would have a helpful dream...
Thank you. I am still digging
iMac, macOS 10.13