[Sticky] Problem updating SoftRAID driver with new iMac Pro

Another bit of info that might be of use:

Secure Boot also seems to disable TRIM on external drives - https://discussions.apple.com/thread/8237086

Seems like you have some volume directory damage. Disk Warrior is your friend for these kinds of issues.

Make sure the volume shows about the correct free space in the volumes tile.

Not yet. We are working on getting an iMac Pro in, as we have been unable to figure this out remotely.

Apple has ignored our bug report so far...

I encountered this problem today when upgrading to SoftRAID 5.6.5. I finally figured out what was happening and disabled SecureBoot per Apple's instructions: https://support.apple.com/en-us/HT208330

At the end of this article, it mentions speculation Apple may force SecureBoot as the only option, but so far they have not: https://twocanoes.com/secureboot-imac-pro/

That would obviously be a grave situation for all iMac Pro users running SoftRAID.

Do you have any update or response from Apple on your bug report? Can you state the bug #?

We have not heard back yet about this issue.

Let me find out if I can publicly post the RADAR number.

Here is the Apple bug number for this issue: 36311786

The new iMac Pro ...

We will update this thread as we learn more. When we are confident we have a permanent solution, we will replace the steps above with the final steps.

This is not working. Please post a fix soonest.

Post 28 has the "fix" i.e, workaround, until Apple fixes this.

What is not working?

OBE. Turns out I had a bad disk. SoftRAID helped to narrow it down and find it.

Please add my name to your list. I'm afraid to depend on my SoftRAID XT and ThunderBay 4 for anything critical with my new iMac Pro due to these issues.

Send an email to support @ softraid and ask to be added, we will.

thanks

It's the end of May, is there really no fix for this yet?

Send an email to support @ softraid and ask to be added, we will.

thanks

This cannot be fixed by us, only Apple. Apple is loading an older driver at boot time, over-riding the installed driver in the system.

We are trying to get a fix in place, but no success. The two workarounds are all there is at present.
(disconnecting the disks at startup, or disabling "enhanced" security.

Oh man, this iMac Pro vs. SoftRAID issue is a big problem in my workflow. I have 3 TB3 Thunderbays that are glitchy and problematic and it's really hurting my work as a professional editor. I'd recommend iMac Pro users look elsewhere for RAID solutions. This problem has been handicapping this system since it was new.

There are two workarounds, changing the "enhanced Security" to none, or connecting your drives after startup.

We hope Apple addresses this soon. We are told there may be a fix in 10.13.6 coming.

Confirming this OS bug on a new iMac Pro running 10.13.4 and SoftRAID 5.6.7.

Both workarounds work, so I'm downgrading security. It works, but sucks.