Pegasus2 R4 don't work on Mac Studio Monterey Chip M1 Ultra

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  • Last Post 22 August 2022
Giorgio Olivero posted this 12 July 2022

Hello. I connected my Pegasus2 R4 (raid1) to my new Mac Studio with M1 ultra chip and OS Monterey. I used Apple original Thunderbolt 3 - to Thunderbolt 2 adapter, but it doesn't load volumes ...

Can someone help me?

Thanks!!! 

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Olivier Klencklen posted this 22 July 2022

Bonjour, 

j'avais le même problème sur un M1 (Mac Book Pro, Mac mini). Puis sur un M1 pro, on m'a demandé d'installer un driver : R_Promise_Utility_402000012.dmg si je me souviens bien… j'ai accès au disque, mais j'ai toujours un message système de l'os d'Appel qui me dit qu'il ne sera bientôt plus compatible. C'est préoccupant !  

 

Si quelqu'un à plus d'information à ce sujet, nous sommes preneurs ;-)

 

Gautham Sakthi posted this 25 July 2022

Hi,

For the M1 MAC please install the below Promise Pegasus user space driver and check again,

https://www.promise.com/DownloadFile.aspx?DownloadFileUID=6902

Richard Harris posted this 22 August 2022

Same problem - I've been trying to resolve this with Promise support for more than a year, with no result. I'm close to removing Promise from our list of preferred suppliers for our new data centre build.

R P posted this 22 August 2022

Hi All,

When the M1 macs came out the Pegasus 2 was indeed tested, I know as I tested with the Pegasus 2 myself.

But some investigation has revealed that if the Pegasus has old firmware, like 5.04.0000.17 (FCS release), the Pegasus 2 won't mount on either an Intel or M1 MAC running Monterey. This firmware is from 2013. But when I attached my Pegasus 2 to Catalina it mounted fine. So my testing had obviously been done with the latest firmware.

If the latest Pegasus 2 firmware is loaded (5.04.0000.64) the Pegasus2 will mount on both the M1 (with both the kext and user space driver) and the Intel Monterey. It can be slow to mount, I did not time it, but it might take a minute, then it works fine and can be managed with the latest Pegasus32 Utility.

Since the Pegasus 2 with old firmware won't be recognized by an M1 MAC, a firmware update will have to be done from an older MAC. I used a Catalina MAC Mini, but Big Sur will probably work as well.

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