Installing Lubuntu 20.10 on an old macbook pro

[kalpana]

I went for a disk install and hope it still is a common way about it. It may be a 2012 model. Specs are relatively good and should be up to the job.

I have booted the live disk, I have a working desktop environment, I have no wireless but with cable I was connected to the web. Firefox was working. I ran the installer, and it seemed to go through the steps with out any protests. I have a new SSD in the machine, nothing on it, there is no MacOS. However, I now boot into a folder with a blinking question mark. Lubuntu grub or boot up seems to be there, but no harddisk is found? I have searched around for similar posts, others have had the same, but I can't find any suggestion on what to do about it. Any clever guys who know what to do?