Recently got back an older laptop from my dad, it's an Ideapad 720s with r5 2500u. Have been trying to get opencore working on this machine with Nootedred for 2-3 days now, feels like I'm hitting a wall.
When I tried to boot the Big Sur installer I made on another hackintosh, "hpet: map device registers failed" is the last line that appear before rebooting or shutting down.
In the log file, I couldn't find anything similar to that and it seems to die after this error "Err(0xE) <"usr\standalone\OS.dmg.root_hash">"
I have tried the trouble shooting section of Dortania's guide and I have searched both error, none of the solution I tried work. Not sure what to do next.
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