Install Snow Leopard on a 2011 Mac Mini #

(See also Downgrading from Lion to Snow Leopard on the latest Mac hardware)

  1. Install Snow Leopard via a 10.6.7 universal installer disc (a MacBook Pro or iMac 10.6.7 "Mac OS X Install DVD" can be made universal via Joel Bruner's bash script 💾).

  2. Install all updates*

  3. From a Lion install, copy
    /System/Library/Extensions/:
    AppleIntelHDGraphics.kext
    AppleIntelSNBGraphicsFB.kext
    and
    /System/Library/Extensions/IOPlatformPluginFamily.kext/Contents/Plugins/ACPISMCPlatformPlugin.kext/Contents/Resources/:
    Macmini5_1.plist
    Macmini5_2.plist
    Macmini5_3.plist
    into the same locations on the Mac Mini.

  4. Run this script as root and reboot:
    cd /System/Library/Extensions/IOPlatformPluginFamily.kext/Contents/PlugIns/ACPI_SMC_PlatformPlugin.kext/Contents/Resources
    chown root:wheel Macmini5*
    chmod 644 Macmini5*
    cd /System/Library/Extensions
    chown -R root:wheel AppleIntelHDGraphics.kext
    chown -R root:wheel AppleIntelSNBGraphicsFB.kext
    chmod -R 755 AppleIntelHDGraphics.kext
    chmod -R 755 AppleIntelSNBGraphicsFB.kext
    kextcache -system-prelinked-kernel
    kextcache -system-caches
    exit
    echo 'Finished'

Footnote

* Deuced civil of Apple to keep the old servers humming along:

Sources

Related

/mac | Sep 07, 2020


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