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Demovx

macrumors member
Original poster
May 12, 2015
65
64
Hello!
I have a qestion.

I have iMac with usb external disk with MacOS High Sierra. ( No APFS ).
When i power up imac, i see black screen. After 10 seconds, the apple logo appears and the booting from the external usb disk. All works fine but i need boot default from external USB ( save the 10 seconds ;p )

My internal disk is clean - no MacOS On this drive.

Can i change in terminal or other app this setting?

In my settings> start disk> i have only my external disk. ( MacintoshHD macOS 10.13.2).
 

m4v3r1ck

macrumors 68030
Nov 2, 2011
2,608
559
The Netherlands
But did you SELECT - flag / highlight - your USB as macOS startup disk, otherwise your Mac will still do a search on all internal/external HDD/SSD ports.

Cheers
 

Demovx

macrumors member
Original poster
May 12, 2015
65
64
But did you SELECT - flag / highlight - your USB as macOS startup disk, otherwise your Mac will still do a search on all internal/external HDD/SSD ports.

Cheers

Xd?

And second screen on my terminal
 

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