[Solved] Error loading operating system

[rickysullivan]

I haven't tried installing macOS on my machine for a few years.

Successfully been running 10.10 for a while now.

Finally decided to install 10.14 on a new SSD.

On a MacBook Air (work machine). I downloaded 10.14.1 installer for App Store, Unibeast & Multibeast from tonymacx86.

Formatted my new 32Gb USB stick using Disk Utility, no option to choose the scheme, so went with Mac OS Extended (Journaled) and I assume GUID.

Ran Unibeast choosing UEFI mode with no injections. Pretty standard.

Inserted my USB stick into a USB 2.0 port in my hack machine. Boot selected F12, picked the USB stick and this error shows:

My machine is a UFEI compliant board with a dual UEFI + i74770K CPU.

Never had any issues with 10.10. In fact I can still boot from that drive.

 

[CaseySJ]

This is due to a common mistake when formatting your USB flash disk:

• Run Disk Utility, then select Show All Devices from the top left.
• Now look for the parent name of your USB flash disk and select the parent name.
• Only then will you see the different partition choices: GUID Partition Map, MBR, etc.
• Select GUID Partition Map
• And Erase the Flash disk as MacOS Extended Journaled (GUID)

 

[rickysullivan]

Bingo. Thanks @CaseySJ

 

[CaseySJ]

Now the real fun begins...

 

[DihydrogenMonoxide]

Yes. This. Thanks.

 

[ferachoglou]

always a bit ashamed to say thank you on those kinda posts, but one must admit @CaseySJ I owe you one

 

[cinder92]

lets check if this works, having same problem, thanks!