Promise Pegasus2 R6 on Mac Studio

[chfilm]

Hey, I tried to test my promise pegasus2 R6 on the mac studio and it won't show up or mount. I went through this: https://kb.promise.com/thread/updating-firmware-on-the-pegasus-1-and-pegasus-2/ and flashed the firmware to the latest version successfully on my old mac pro, but still- no pegasus on the studio. Anybody had the same issue?

 

[sundhar1]

Are you using the "user space driver" recommended for M1 or M2 machines? It is the first link in the article of your post. The default drivers installed in macOS are known to cause this issue on Apple Silicon macs.

 

[chfilm]

Are you using the "user space driver" recommended for M1 or M2 machines? It is the first link in the article of your post. The default drivers installed in macOS are known to cause this issue on Apple Silicon macs.

Yes- I installed that driver and this one: https://www.promise.com/DownloadFile.aspx?DownloadFileUID=6798

The driver now shows up in the extensions in the sys profiler:

But no luck with the drive. It works flawlessly on the intel mac pro. I lowered those boot security restrictions too.
I dont know what else to do.. if I delete the extension from the library/extensions folder and reinstall, I don't even get the "allow apps from external developers" cue from system settings anymore..

This document that comes with the Dext driver is SO confusing, I don't get at all what they want from me.

/EDIT: I got it to work with another thunderbolt cable. lol. The cable works on the 2019 mac pro without issues, but not on the mac studio..alright.

 

[sundhar1]

Glad you were able to get it to work.

I am posting the setup instructions for anyone else having this issue in the future.

Promise Pegasus KEXT Driver on M1 Mac Installation Guide

Enable System Extensions M1 Mac running macOS 11 or later requires a one time change to the Boot Policy before

kb.promise.com