I have a 2010 Mac Pro 5,1 with a Radeon RX 580 8 GB graphics card. I have been using Martin's opencore for 3 years, upgrading to Mojave and then to Catalina back when I started.
I just added a drive and anticipated updating to Monterey and ran into a bit of a snag. Reading the various posts on this forum has given me some ideas, but no fix.
I got the "
a required firmware update could not be installed" error upon trying to instal Monterey onto a new drive. I am able to install Big Sur, but not Monterey.
I am using opencore 0.9.3 and I did alter the config.plist by a change the cpuid1mask (the A to C), and UpdateSMBIOS to false.
I have searched the forums and found -
You need to "update" the firmware features in PlatformNVRAM (see Complete your setup>Spoofing and enabling missing features in post #1) - so I looked at post #1,
spoofing and enabling missing features, and then under -
For a better experience when installing and updating Monterey, you'll also need to "update" the firmware features: - , but I couldn't understand what lines needed to be changed and what the lines need to be changed to.
Some of the choices were:
Find ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ | Replace ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ ⠀ |
---|
<key>PlatformInfo</key>
<dict>
⋮
<key>PlatformNVRAM</key>
<dict>
⋮
<key>FirmwareFeatures</key>
<data>
</data>
<key>FirmwareFeaturesMask</key>
<data>
</data>
⋮
<dict/>
⋮
<key>UpdateNVRAM</key>
<false/>
⠀
⠀ | <key>PlatformInfo</key>
<dict>
⋮
<key>PlatformNVRAM</key>
<dict>
⋮
<key>FirmwareFeatures</key>
<data>
A1QMwAgAAAA=
</data>
<key>FirmwareFeaturesMask</key>
<data>
P/8f/wgAAAA=
</data>
⋮
<dict/>
⋮
<key>UpdateNVRAM</key>
<true/> |
I wasn't sure if I am supposed to find the line that show in the replace section and make it look like the find section or the other way around.
My apologies for the long post. I would really like to find a way to get to Monterey on my mac, seeing how this may be my last upgrade
Thank you for any assistance.