From High Sierra, I was prompted to upgrade to Mojave; did that, successfully completed (I guess, no errors were reported or something, but I don't remember if I restarted my laptop at that point. Moreover I didn't check if the version was upgraded in "About this Mac".).
Next day, I try to start my laptop, nothing… Eventually it says there was a problem finding the launcher or something. Laptop started successfully (phew!), and High Sierra is still installed.
Now, it asks me to upgrade to Mojave again, but I am afraid. What are the risks in accepting to upgrade? What should I do? Maybe I could stick to High Sierra…
Best Answer
If it were me, and my machine was running at this point, I'd backup the disk, then separately backup my home folder, and put those media aside. Then I'd redo the upgrade.