The same black screen with “You need to restart your computer…” text appeared when I tried to boot from the Snow Leopard DVD holding the C key.
Panic (cpu 0 caller0x55a1eb): Unable to find driver for this platform: “ACPI”
Last week, I have to deal with a MacMini (Mid 2010 with Snow Leopard installed) which worked only 5 months until it froze and gave the following error at startup: I hope this post will help someone in my situation who need an emergency method to backup a non-bootable Mac.
