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Old Promise raid not mounting on new Mac mini 2020
I have an old Promise Pegasus R4 raid dating from 2012. It’s working perfectly with my old iMac 2011. I have just purchased a Mac mini 2020 but the raid won’t mount
The old raid has a Thunderbolt 2 connection and I had bought a thunderbolt 3 to thunderbolt 2 adapter. Does anyone know if an old Pegasus raid will work with the new Mac mini?
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2 Replies
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I used to have an R4 and back then they used a MacOS kernel extension. I don’t know about today but an x86 kernel extension will not run on an Apple Silicon Mac, and it might not even run on x86 on Big Sur due to kernel extensions being deprecated.
You can check whether your old system has a Promise kernel extension by typing the below from a terminal window. If that exists, check with Promise support or Promise user forums about whether newer firmware or Promise software exists.
To examine kernel extensions, type this from terminal window. The “|” is the vertical bar, typically above the back slash key on most keyboards.
kextstat | grep -v com.apple
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Thanks for that. Promise has stated that they will be bringing out a driver for the R4 in mid December.
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