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bxs

macrumors 65816
Original poster
Oct 20, 2007
1,144
522
Seattle, WA
I have a Mac mini M1 arriving and do hope I will be able to connect my Promise Pegasus devices without issues. Has anyone tried this yet ? I'm told by Promise that things are compatible with Big Sur, but that is all they say!
 
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Selfie

macrumors newbie
Nov 19, 2020
24
6
I have successfully launched Promise Utility but the new M1 Mini doesn't see my Pegasus R2 at all. I'm still trying to run down the cause. It's not visible in Drive Utility, not on About This Mac under storage tab. It IS visible on the system report (About This Mac: System Report.)
 

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bxs

macrumors 65816
Original poster
Oct 20, 2007
1,144
522
Seattle, WA
I have successfully launched Promise Utility but the new M1 Mini doesn't see my Pegasus R2 at all. I'm still trying to run down the cause. It's not visible in Drive Utility, not on About This Mac under storage tab. It IS visible on the system report (About This Mac: System Report.)
Well, that is very troubling to hear. Please post back if you get it resolved. Have you called Promise Support about this issue? It seems odd this is happening as Apple and Promise have a close business relationship.

I have two Pegasus units I wish to have connected to my mini M1 that arrives today. Are you using the mini's TB4 port(s) ? Are you having to use the Apple's USB-C/TB3-to-TB2 adapter for connecting to your Pegasus2 unit(s) ?
 

Selfie

macrumors newbie
Nov 19, 2020
24
6
I'm guessing that this is possibly a Big Sur issue since I can't imagine there being a problem with the M1 Mini's Thunderbolt system since it's a SOC. Problems with Thunderbolt would have shown up in hardware testing...probably...LOL
 

bias

macrumors newbie
Nov 17, 2007
15
5
For what it's worth, my G-Speed Shuttle TB3 Raid arrays arent showing up on my M1 MBP either. I am assuming it's a Big Sur issue, but G-Tech support wasn't sure.
 
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jgtuna

macrumors newbie
Nov 19, 2020
4
3
Just received Pegasus32 R6 and tried to connect to my M1 mac mini - no joy. "Glad" to see this post to know it isn't me...and not at all happy to see this problem...
 
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s4ru

macrumors newbie
Feb 10, 2020
17
27
My Intel MacBook Pro 16” was updated to Big Sur and running fine so far.
I just tried connecting Pegasus R2 to the 16” and the RAID drive mounted successfully.
FYI, I did not install Pegasus utility because once there was an issue with it where it made Adobe products slow.
 
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Selfie

macrumors newbie
Nov 19, 2020
24
6
My Intel MacBook Pro 16” was updated to Big Sur and running fine so far.
I just tried connecting Pegasus R2 to the 16” and the RAID drive mounted successfully.
FYI, I did not install Pegasus utility because once there was an issue with it where it made Adobe products slow.
Thank you. So it's an M1 Mac issue and not Big Sur. I assume Promise is investigating. If anyone reading is a developer, please send a bug report to Apple.
 

vicmarto

macrumors newbie
Dec 3, 2010
21
5
I have successfully launched Promise Utility but the new M1 Mini doesn't see my Pegasus R2 at all. I'm still trying to run down the cause. It's not visible in Drive Utility, not on About This Mac under storage tab. It IS visible on the system report (About This Mac: System Report.)
I think this is a driver problem. Catalina used to have the promise kext in /Library/Extensions/PromiseSTEX.kext but I think that Apple removed it in the Big Sur build from Apple M1 processor, or maybe moved it to /System/Library/Extensions? I don't know...

Please, can you share the result of this command? Run it in terminal in your M1 Mini:

Bash:
ls -la /System/Library/Extensions

Thanks.
 

Selfie

macrumors newbie
Nov 19, 2020
24
6
I think this is a driver problem. Catalina used to have the promise kext in /Library/Extensions/PromiseSTEX.kext but I think that Apple removed it in the Big Sur build from Apple M1 processor, or maybe moved it to /System/Library/Extensions? I don't know...

Please, can you share the result of this command? Run it in terminal in your M1 Mini:

Bash:
ls -la /System/Library/Extensions

Thanks.
 

vicmarto

macrumors newbie
Dec 3, 2010
21
5
It's there, the kext is installed:

Code:
drwxr-xr-x@ 3 root wheel 96 Jan 1 2020 PromiseSTEX.kext

So, it must be another thing... Sorry, I don't know.
 
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jido

macrumors regular
Oct 11, 2010
226
99
The OS has non-ARM kernel extensions installed by default. You need to check if it has "arm64" architecture:

file /System/Library/Extensions/PromiseSTEX.kext/Contents/MacOS/PromiseSTEX
 

Selfie

macrumors newbie
Nov 19, 2020
24
6
The OS has non-ARM kernel extensions installed by default. You need to check if it has "arm64" architecture:

file /System/Library/Extensions/PromiseSTEX.kext/Contents/MacOS/PromiseSTEX
I'm looking at the strings and can't find anything on that issue.
 

vicmarto

macrumors newbie
Dec 3, 2010
21
5
I'm looking at the strings and can't find anything on that issue.
@Selfie:

You can see that in "System Information":  > About this Mac > System Report > Software (Extensions)

Then look for "PromiseSTEX", and finally "Architectures". It can be "x86_64" only (bad for you, and explains because it's not working), or "arm64e, x86_64" (all good and life is wonderful!) :)

I attach a screen capture from my Intel machine. Maybe helps you to find it.

Or, more easy, like @jido said, in Terminal:

Bash:
file /System/Library/Extensions/PromiseSTEX.kext/Contents/MacOS/PromiseSTEX
 

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Selfie

macrumors newbie
Nov 19, 2020
24
6
file /System/Library/Extensions/PromiseSTEX.kext/Contents/MacOS/PromiseSTEX
/System/Library/Extensions/PromiseSTEX.kext/Contents/MacOS/PromiseSTEX: Mach-O 64-bit kext bundle x86_64

This on my M1 Mini. So, does that explain why it's not mounting?
 

Selfie

macrumors newbie
Nov 19, 2020
24
6
On the Promise Knowledge Base/Forum, one Promise poster declared that Pegasus 2 (among others) are legacy equipment and will not be supported in the ARM Macs! That may have to be argued between Apple (not supporting emulation of x86 drivers in M1 Macs) and Promise (who no doubt have tens of thousands of users who will want to use their legacy Thunderbolt RAIDs in coming Apple silicon Macs!) If anyone has any contacts at Apple HQ or Promise, please outline the issue for them and ask for HELP!
 

Selfie

macrumors newbie
Nov 19, 2020
24
6
Well, that is very troubling to hear. Please post back if you get it resolved. Have you called Promise Support about this issue? It seems odd this is happening as Apple and Promise have a close business relationship.

I have two Pegasus units I wish to have connected to my mini M1 that arrives today. Are you using the mini's TB4 port(s) ? Are you having to use the Apple's USB-C/TB3-to-TB2 adapter for connecting to your Pegasus2 unit(s) ?
I tried contacting Promise Support and, when I entered the name of my device, the automated form stopped with "Legacy device out of warranty," or something to that effect. No joy.
 

Selfie

macrumors newbie
Nov 19, 2020
24
6
Someone else in a different thread, mentioned that Promise estimated December sometime for updated drivers.
 
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