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Lenovo Thinkpad Edge S430 i7-3520M HD4000: unable to boot Big Sur installer


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Big Sur actually provides support for HD4000, it's just that it officially dropped the Ivy Bridge/HD4000 Mac models. But all the necessary graphics drivers remained included. So it's a simple matter of installing and running Big Sur with a suitable SMBIOS on Ivy Bridge platforms (Haswell MBP11,x or MBA6,x or later for instance).


See here and here.


Ivy Bridge/HD4000 platforms may also run Monterey/Ventura/Sonoma with (OCLP) patching.

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