The installer has a go, seems to workm but always reboots and I'm stuck on 10. With the latest macOS high sierra – public beta 4 (Developer Beta 5), it turned into an absolute mess, where install appeared to be going along fine, but the system failed to boot. But, I didn't see an option to install APFS. Parts including high end GPUs can be incredibly cheap via Ebay and the Intel Mac Pro’s 1,1 to 5,1 are still very useable – essentially server class in many respects… a 12 core Xeon 64GB ram with internal RAID, SSD at 6GBs over PCI card and a 4GB GPU for under $1000…. There was a choice to bypass migrating to APFS while installing High Sierra during the beta period. Install macOS High Sierra After setting up BIOS, the next step is to install macOS High Sierra. Apparently it does not install as it keep looping back to the the black and white Apple logo screen: Reinstall macOS High Sierra to resolve Mac won't boot issue. If the installer opens after downloading, quit it without continuing installation. _ Cannot install high sierra on apple raidĬannot install high sierra on apple raid In this article, we’ve covered the problems from the comment section and will solve them here so if you had any of these problems, of course, you can find the.