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

Please help! Locked HD after erasing

Fordornothing

Fordornothing

macrumors newbie
Original poster
Jun 22, 2017
7
1
Hi, I'm lost, I wanted to reset my MacBook Pro retina back to factory reset. However, when I erased the startup disk I did not back up anything because I did not have anything valuble to save. Now, when I try to reinstall macOS Sierra I am unable to select the "OS X Base System" HD. It's says "this disk is locked," and I'm unable to install it. Is there anything that I can do to fix this issue?
 
OS X base system is the recovery OS bit IIRC. Basically sounds like you need to create a new volume in Disk Utility for the OS to install to as you won't be able to install onto that.

Go into Disk Utility and you should see an indented partition under your SSD which is about the size of your total drive. If you don't see anything there you'll need to create a new partition.
 
IMG_1204.JPG
This is what I see appearing on my screen
 
Try clicking the APPLE SSD SM01.. , I reformatted my Mini recently and I think that's where I had to select because I could do any kind of partitioning. To put it simply, the SSD is the base container, while the OS X Base System is just a partition. I think.
 
IMG_1205.JPG
Ok. When I click the Apple SSD everything is greyed out. I'm only able to select first aid, partition, and info.
 
IMG_1207.JPG
I tried to make a new partition but it does not allow me to do so.
 
Last edited:
I think the issue there is you have done a command-r boot to the local disk based recovery, and you cannot format the drive since you are still booted to it.

Reboot and hold command-option-r to get to Internet recovery. After selecting your wifi you will see a spinning globe while the recovery utility downloads. Then you will see the recovery screen. Now use Disk Util to erase the drive by selected where is says Apple SSD at the top there then erasing.
 
  • Like
Reactions: splifingate
Weaselboy said:
I think the issue there is you have done a command-r boot to the local disk based recovery, and you cannot format the drive since you are still booted to it.

Reboot and hold command-option-r to get to Internet recovery. After selecting your wifi you will see a spinning globe while the recovery utility downloads. Then you will see the recovery screen. Now use Disk Util to erase the drive by selected where is says Apple SSD at the top there then erasing.
Click to expand...

Ok, after I restarted my mac using the command-option-r I recieived a message apple.com/support with an error code "-2002F"
 
Fordornothing said:
Ok, after I restarted my mac using the command-option-r I recieived a message apple.com/support with an error code "-2002F"
Click to expand...
That is usually because you are one a type of wifi setup not supported by Internet recovery. Can you just open up the wifi network with no password or anything to get this done?
 
Weaselboy said:
That is usually because you are one a type of wifi setup not supported by Internet recovery. Can you just open up the wifi network with no password or anything to get this done?
Click to expand...
That's going to be a problem because

I'm in a furnished apartment in Colombia and the wifi came already set up. I tried to ask the owner about this before to unlock it but he will not authorize me to do so. It's difficult to persuade him to do so because I don't speak Spanish very well and he doesn't really understand me. Is there no other solution to this problem without a specific wifi setup?
 
Fordornothing said:
Is there no other solution to this problem without a specific wifi setup?
Click to expand...

No sorry. You are going to need to get on wifi that is supported by Internet recovery. WPA (most common) is supported. WPA enterprise and WEP are not supported. I doubt an apartment has WPA enterprise, so they may be on the older and less secure WEP. If that is the case, maybe you can sweet talk them into setting it to WPA by explaining it is better and more secure?
 
ok. Thanks for the help. I will give it a try. If not I will try to find an Apple Store here and see if they can help me out.
 
  • Like
Reactions: Weaselboy
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