Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

usb reinstall macOS problem

6

65301361

macrumors member
Original poster
Sep 24, 2018
40
1
toady I was trying to install Sierra on my 2015 MacBook Air and found something confusing. I made a bootable usb driver with Sierra and got to the macOS installer and erase the ssd of my MacBook in Mac OS Extended journaled and of course installed the Sierra on it. but after the process bar ended and reboot automatically it didn't go into the macOS setting screen where you can choose the location and language etc to set up your Mac. Instead it went to the macOS installer again?

so I erased the hard drive again and installed and succeeded. and I found that the ssd was detected as pci ssd or whatever I can't remember when I went into the macOS installer the second time. I assume that is the reason why it failed? acutually I also came across this problem when I used windows laptop like 9 or 10 years ago. I always had to install windows twice to make it. what could be the reason?
 
Installing an OS twice to get it installed. It should never be like this.

Once the installation is completed, it should just boot into the system disk unless mentioned otherwise. If that doesn't happen automatically, do it manually. When it restarts, go to boot options and boot from system disk.

If you are seeing the same problem in windows and macOS for years you are for sure doing something wrong.
 
Sovon Halder said:
Installing an OS twice to get it installed. It should never be like this.

Once the installation is completed, it should just boot into the system disk unless mentioned otherwise. If that doesn't happen automatically, do it manually. When it restarts, go to boot options and boot from system disk.

If you are seeing the same problem in windows and macOS for years you are for sure doing something wrong.
Click to expand...
The problem is even I press option at starting. There is only one disk for me to choose it’s the installer which means the os hasn’t been installed successfully
 
65301361 said:
I think I did. I just choose the disk and erase it in the disk Utility.
Click to expand...
There are guides and thorough tutorials on internet about how to do that. Every step. Check those in case u need to be sure. Also try once more, this time take photos of the steps.
 
Sovon Halder said:
There are guides and thorough tutorials on internet about how to do that. Every step. Check those in case u need to be sure. Also try once more, this time take photos of the steps.
Click to expand...
I have installed it so I don’t bother to do it again. I assume the problem is because of the APFS? Cause I installed it from Mojave. But I’m not sure though. I read the instruction and I think I did everything right.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back