Just got a new 15" rMBP today (Force Touch, 256 SSD).
I typically do a clean install when I get a new computer.
My usual procedure has been to create a bootable USB flash drive from which to boot the computer and install the latest version of OS X, which I would have previously download from the Mac App Store using another computer.
Needless to say, I'm having problems this time.
I created my installer drive using my 2013 MacBook Air: It boots just fine on the Air and on two Mac Minis.
However, the rMBP will not boot from this drive (it's giving me a black screen with a white "circle with a slash through it" icon).
Thinking perhaps that Apple has done something to prevent the new rMBPs from booting from bootable flash drives created with other/older Macs (...I was already grasping for straws here...), I tried to use the rMBP to download Yosemite from the Mac App Store in order to re-create my bootable flash drive using the Terminal.
However, I was unable to download Yosemite using my account because, according to the error provided by the Mac App Store, Yosemite was already installed on the computer (duh!).
So, my next chosen step was to fallback to the Internet Recovery feature-- at least from there I could swipe my hard disk and move on with life...
...or so I thought.
I've never used Internet Recovery before (and I was rather dismayed by the time it took to load, even with my relatively fast connection).
In any event, I launched Terminal (and not Disk Utility, as I'm somewhat of a caveman) to secureErase, partition, and encrypt my SSD.
I began by typing the diskutil list command—and this is where I stopped.
I stopped because I was surprised to see 15 separate disks listed on a computer that I thought had only 1 256GB SSD.
Three (3) questions:
Many thanks.
I typically do a clean install when I get a new computer.
My usual procedure has been to create a bootable USB flash drive from which to boot the computer and install the latest version of OS X, which I would have previously download from the Mac App Store using another computer.
Needless to say, I'm having problems this time.
I created my installer drive using my 2013 MacBook Air: It boots just fine on the Air and on two Mac Minis.
However, the rMBP will not boot from this drive (it's giving me a black screen with a white "circle with a slash through it" icon).
Thinking perhaps that Apple has done something to prevent the new rMBPs from booting from bootable flash drives created with other/older Macs (...I was already grasping for straws here...), I tried to use the rMBP to download Yosemite from the Mac App Store in order to re-create my bootable flash drive using the Terminal.
However, I was unable to download Yosemite using my account because, according to the error provided by the Mac App Store, Yosemite was already installed on the computer (duh!).
So, my next chosen step was to fallback to the Internet Recovery feature-- at least from there I could swipe my hard disk and move on with life...
...or so I thought.
I've never used Internet Recovery before (and I was rather dismayed by the time it took to load, even with my relatively fast connection).
In any event, I launched Terminal (and not Disk Utility, as I'm somewhat of a caveman) to secureErase, partition, and encrypt my SSD.
I began by typing the diskutil list command—and this is where I stopped.
I stopped because I was surprised to see 15 separate disks listed on a computer that I thought had only 1 256GB SSD.
Three (3) questions:
- With nothing but the power cord attached to the computer, why are there 15 separate disks listed??? (I have /dev/disk0 through /dev/disk14.) I've never seen this before.
- Has anyone else encountered similar problems when attempting to do a clean install on a new rMBP?
- Does anyone have any suggestions as to how I might accomplish what I originally set out to do (completely swipe my SSD and install Yosemite)?
Many thanks.
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