big-sur-micropatcher icon indicating copy to clipboard operation
big-sur-micropatcher copied to clipboard

Install Big Sur on a second hard drive

Open zkSac opened this issue 4 years ago • 9 comments

Hello, I have a MacBook Pro Mid 2012, with two internal SSDs, in the main one I have MacOS High Sierra, can I install MacOS big sur in the other and be able to change from one system to another without problem? thanks!

zkSac avatar Nov 21 '20 08:11 zkSac

I have MacBook Pro Mid 2012 with two internal SSDs. The problem: no driver for WiFi on it, but I don't know, how the MacBook Pro 2012 Late was build.

Snappynator avatar Nov 21 '20 19:11 Snappynator

I have MacBook Pro Mid 2012 with two internal SSDs. The problem: no driver for WiFi on it, but I don't know, how the MacBook Pro 2012 Late was build.

Did you run patch-kexts.sh?

ghost avatar Nov 21 '20 19:11 ghost

In short: no.

What does patch-kexts.sh do?

Snappynator avatar Nov 21 '20 19:11 Snappynator

It replacing the kexts (or drivers) of the system with ones that work with your WiFi card.

  1. Boot into your installer usb
  2. Open Terminal under Utilities.
  3. Type in /Volumes/Image\ Volume/patch-kexts.sh and press enter
  4. Boot back into macOS and enjoy your WiFi!

ghost avatar Nov 21 '20 19:11 ghost

I'll test it later, but at the moment I'm unfortunately formatting my backup hard drive (USB 3.0) 1 TB to secure erase in seven steps. I'll try it later and thanks for the answer.

Snappynator avatar Nov 21 '20 19:11 Snappynator

3. Type in /Volumes/Image\ Volume/patch-kexts.sh and press enter

Well I downloaded the patch-kexts.sh now. And my question now: What do you mean with "Type in /Volume/Image\ Volume/patch-kexts.sh" now?

Did you mean "/Volume/Image", where I installed Big Sur now, or how should I do to understand it?

Snappynator avatar Nov 23 '20 21:11 Snappynator

Type /Volumes/Image\ Volume/patch-kexts.sh /Volumes/Name

This applies the Wifi patch to your installation disk. Replace "name" with the name of your disk

zkSac avatar Nov 23 '20 21:11 zkSac

Type /Volumes/Image\ Volume/patch-kexts.sh /Volumes/Name

This applies the Wifi patch to your installation disk. Replace "name" with the name of your disk

Sorry, for being a noob, but as I restarted my Mac, hold the ALT-Key to start my "USB Big Sur Installer". And now the problem: I choose my Admin-Account and enter my passwort, and after that, my mac just wrote, I would enter my password wrong. And this everytime... . What is the problem, or did I something wrong? it won't let me go in into the reinstall-, and terminal window. It just wrote, I would only enter my password wrong. What is the problem, or did I something wrong?

Snappynator avatar Nov 23 '20 23:11 Snappynator

To answer the OP: that's what I did on my late 2012 iMac. Catalina installed on one SSD and Big Sur installed on the other. When installing macOS, it asks you which (separate) drive to install it on.

fallenartist avatar Dec 15 '20 09:12 fallenartist