SecureBootModel in OpenCore 0.7.2

In OpenCore 0.7.1, failsafe value for SecureBootModel is Default, this value sets Apple Secure Boot hardware model as j137 (iMacPro1,1). This means that macOS versions released before the iMacPro1,1 model (December 2017, minimum macOS 10.13.2) cannot be installed with this SecureBootModel value.

In OpenCore 0.7.2, failsafe value for SecureBootModel remains Default, but this value sets Apple Secure Boot hardware model as x86legacy, new value (not existing in previous versions) that corresponds to macOS 12 Monterey on hardware without T2 chips.

Notice that with OpenCore 0.7.2:

  • Monterey requires x86legacy (or Default)
  • j137 doesn't work with Monterey.
  • j137 is the recommended value for macOS 10.13.2 through 10.15.x
  • Big Sur can boot with x86legacy.

Of course, you can also set Secure Boot Model to the value that corresponds to your SMBIOS (example j160 for MacPro7,1).

Valid values in OpenCore 0.7.2:

  • Default — Recent available model, currently set to x86legacy
  • Disabled — No model, Secure Boot will be disabled
  • j137 — iMacPro1,1 (December 2017) Minimum macOS 10.13.2
  • j680 — MacBookPro15,1 (July 2018) Minimum macOS 10.13.6
  • j132 — MacBookPro15,2 (July 2018) Minimum macOS 10.13.6
  • j174 — Macmini8,1 (October 2018) Minimum macOS 10.14
  • j140k — MacBookAir8,1 (October 2018) Minimum macOS 10.14.1
  • j780 — MacBookPro15,3 (May 2019) Minimum macOS 10.14.5
  • j213 — MacBookPro15,4 (July 2019) Minimum macOS 10.14.5
  • j140a — MacBookAir8,2 (July 2019) Minimum macOS 10.14.5
  • j152f — MacBookPro16,1 (November 2019) Minimum macOS 10.15.1
  • j160 — MacPro7,1 (December 2019) Minimum macOS 10.15.1
  • j230k — MacBookAir9,1 (March 2020) Minimum macOS 10.15.3
  • j214k — MacBookPro16,2 (May 2020) Minimum macOS 10.15.4
  • j223 — MacBookPro16,3 (May 2020) Minimum macOS 10.15.4
  • j215 — MacBookPro16,4 (June 2020) Minimum macOS 10.15.5
  • j185 — iMac20,1 (August 2020). Minimum macOS 10.15.6
  • j185f — iMac20,2 (August 2020). Minimum macOS 10.15.6
  • x86legacy — Macs without T2 chip and VMs. Minimum macOS 11.0.1.
submitted by /u/987perez
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