Pegasus 2 with M1 MBP Ventura?

  • Last Post 19 December 2022
Florian Singer posted this 19 December 2022

Hey Guys,

I have a problem, I have the newest Macbook Pro with M1 chip and OSX Ventura. I installed the driver provided by Promise (R_MacDrv_V6_2_16) with the Kernel extensions etc.  but I just cant get the raid to run :/ 

Is it because i'm on Ventura and the Pegasus is only compatible with Big Sur? I already checked, I cant downgrade that far because my Macbook is not compatible with Big Sur.

Any recommendations? 

Order By: Standard | Latest | Votes
Florian Singer posted this 19 December 2022

I saw that it doesnt even load the kernel extension (see attached picture) I found a terminal prompt on this forum where I can force the kernel to load, but it seemed that didint work either. 

Florian Singer posted this 19 December 2022

I think I loaded the wrong Driver, here I could find the right one:

R P posted this 19 December 2022


We suggest using the Pegasus user space driver with Ventura or Monterey. Please use the Promise Utility from the Pegasus32, as it is backwards compatible with the Pegasus2.

This DEXT driver should be used.

Note that installing this driver will delete the kernel space driver.

The Pegasus 2 firmware was updated in 2020, the latest firmware should be used. But there is an issue with the latest Pegasus32 Promise Utility and it will not update Pegasus2 firmware. But a slightly older Pegasus Utility will work.

Please use this Promise Utility (v4.06.0000.01).

To update with this Pegasus2 firmware (v5.04.0000.64).

Without the latest firmware the Pegasus2 will experience random disconnects and failure to reconnect after a reboot.