mac high sierra updates not installing on raid hd

I'd love to go back to APFS but am afraid it will 'break' things. The iMac runs slower on MacOS Ext, but it is running and the Raid is recognised. The issues persisted so I re-reformatted from a bootable USB - this time to Mac OS Extended (journaled) and the issues seems to be resolved. (Not the physical drive above it.) In this example, it’s called John’s-MacBook. The iMac was formatted to APFS prior to installing OS11 so I reformatted to APFS when returning to Catalina.

Looked into this and discovered that it may be an issue of Mac OS Extended vs APFS This disk uses features that are not supported on this version of MacOS' and my Pegasus2 R4 portion no longer appears on the desktop or in Disk Utility. If LaCie RAID Manager isnt detecting your device, please follow the instructions here to update your firmware. But I keep getting the following message upon restarting: Reformatted my internal drive and reinstalled Catalina 15.5 and reformatted the raid.

IMac 27' 5k late 2015 - 64gb ram and a 16tb Pegasus Promise2 R4 raid5 via Thunderbolt.Īfter trying Big Sur - found issues with Luminar Photo app, decided to return to Catalina on the iMac.

Mac high sierra updates not installing on raid hd