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+--- Thread: Installing 10.15 Catalina on RAID 0 array (/showthread.php?tid=250335)
Installing 10.15 Catalina on RAID 0 array - Mr645 - 12-13-2020
Can anyone confirm if this will work?
Clone the 2 drive RAID 0 array in a 2012 Mac Mini 10.11.6
Upgrade the external clone to 10.15 Catalina
Clone it back to the internal RAID 0 array
Done
Or not
Re: Installing 10.15 Catalina on RAID 0 array - hal - 12-13-2020
no, it will NOT work
booting from a RAID was last supported with 10.12. It's been said that copying a 10.13 drive to a RAID would work, but you can't run updates and I seem to remember all sorts of problems - I certainly wouldn't trust it. That's when I left RAID booting. I haven't heard of anyone duping 10.14 or 10.15, but I would suggest that it would be a BIG waste of time.
Re: Installing 10.15 Catalina on RAID 0 array - jdc - 12-13-2020
Single SSD is faster.
Re: Installing 10.15 Catalina on RAID 0 array - Sarcany - 12-13-2020
No. Don't even try it.
You might be able to use the DosDude tool or Carbon Copy Cloner to deal with the low-level stuff of making bootable Catalina volumes on a RAID, but...
1. You shouldn't be booting from a striped RAID. It's very VERY risky.
2. It's an unsupported configuration that can be hosed by a system update or crash.
3. You have better options. Like NOT using a striped RAID for your boot vol and instead using a SSD.
Re: Installing 10.15 Catalina on RAID 0 array - Mr645 - 12-14-2020
Thank all. Looks like the upgrade path is going to include a 2TB SSD and a docking station to clone the RAID 0 array. Then disassembly of the Mini to replace the drives.
Not free and a lot more work. Oh well.
Thanks all