1st gen Promise Pegasus R6 on Catalina or Big Sur

  • Last Post 06 July 2021
Daniel Sieff posted this 11 March 2021

I cant get the drive to load on either OSX, I've used this drive for a long time and it's worked great but now on these two operating systems there is no way to get it working. I made it appear for about 10sec and then disappeared on Catalina. Then on Big Sur I read promise supported Big sur so gave it a try but still nothing. I need help I have a lot of data I need access to but no luck. I've read through other discussions on the forums and tried following some steps but still didnt work. How can I get this drive working in either of these operating systems? I'm on the latest promise utility and driver.

  • Liked by
  • Susan Isaacs
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Ranjith kumar posted this 15 March 2021

Hi Daniel,

Kindly reach thorugh us creating a web support case id at support.promise.com with attaching Mac report to verify the

issue and assist you.

Thank you,


Promise Team

Eric Friday posted this 18 March 2021

Just a follow up. I didn't see any response from my ticket because my browser had pop-ups blocked. The Brave browser did not notify me of this, but switching to chrome I saw a message saying that pop-ups were blocked.

Just in case anyone else has this issue.


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  • Susan Isaacs
Daniel Sieff posted this 01 July 2021

Where I do web support?

Gautham Sakthi posted this 01 July 2021

Hi Daniel,

You can create the web support ticket at support.promise.com.



Daniel Sieff posted this 06 July 2021

Ive created a ticket no one has responded yet caseid 20210630202355S

Gautham Sakthi posted this 06 July 2021

Hello Daniel,

The case has been responded, please login to support.promise.com and then go to view existing support cases under web support.

Click on the case id 20210630202355S to view the update.

Note : If you are unable to open this web support case to reply, it could be because of the pop up blocker in your browser. 

Please disable that and you will be able to reply to the case.

Susan Isaacs posted this 06 July 2021

Pegasus 2 R6 not mounting on Big Sur

Ticket created but why not post solutions for this to save time for users?