- #INSTALL MOUNTAIN LION TARGET DISK MODE HOW TO#
- #INSTALL MOUNTAIN LION TARGET DISK MODE INSTALL#
- #INSTALL MOUNTAIN LION TARGET DISK MODE MANUAL#
- #INSTALL MOUNTAIN LION TARGET DISK MODE PRO#
This is only a short stop on the road, so catch your breath, and let’s move along. Now, and only now have we come to clean installing macOS Big Sur.
#INSTALL MOUNTAIN LION TARGET DISK MODE INSTALL#
This is the file we’ll use later to run the clean install of macOS Big Sur via Disk Utility. We only want to make sure that the app called Install macOS Big Sur.App is now firmly sitting in your Applications. Install the app and click on System Junk to perform the scan.ĭon’t click Continue but for now, close this window by choosing Quit Install. This tool is one of the best-known cleaning utilities for Mac, and it’s been notarized by Apple.ĭownload the free version of CleanMyMac X cleaner here. To clean your machine automatically, you can run CleanMyMac X. Time Machine will make a snapshot of your system.But before that we’ll ensure there's no unwanted leftovers on your entire Mac. After we’ve cleaned your Mac, you’ll end up with a refreshed system ready for a Time Machine backup. And lastly, we’ll use Disk Utility to erase your Mac and install macOS Big Sur using the bootable USB device.Ĭleaning your Mac is generally a healthy practice but since we’re about to back your Mac up, it’s worthwhile to get rid of system junk first.
Next, you’ll need to create a bootable USB installer (involves another external drive). Then, you’ll need to download macOS Big Sur package to your Applications. The first step is to clean and back up your Mac to some external source. You format your hard drive, and therefore, it keeps no leftovers from the previous macOS.īasic steps to clean install macOS Big Sur What is a clean install? (Big Sur or any other macOS)Ī clean install means that you install the macOS onto the erased drive.Ī clean install is the opposite of macOS upgrade.
#INSTALL MOUNTAIN LION TARGET DISK MODE HOW TO#
Here’s how to perform a clean install of macOS Big Sur with pictures and helpful tips along the way. It also sports a refreshed version of Safari that is 50% faster than Chrome. Those who tried it say that it’s more stable.
#INSTALL MOUNTAIN LION TARGET DISK MODE MANUAL#
But if you’re looking for manual solutions, see our ideas below.įeatures described in this article refer to the MacPaw site version of CleanMyMac X.Īpple released macOS Big Sur on November 12, 2020. macOS Big Sur continues the list of Central California landmarks as well as marks the new operating system for Mac. It’s notarized by Apple and is optimized to find issues on macOS Big Sur.
I think that I maybe could erase and reformat the disk through the terminal but I can't figure out how.Here’s a tip for you: Download a free version of CleanMyMac X. It seems that something is wrong on the drive, it says that the disk partition has 500,11 GB in capacity which is weird because the disk has 499 GB in capacity. When I try to unlock the admin password using the terminal I cannot find the disk I want to change the password for. If I try to reinstall macOS X in the Recovery mode I have to unlock the disk, but my fiancee has tried her old password she used to have but that didn't work.
If i try to repair the drive it says "Repar of disk failed: the object is invalid and cannot be serialized". When I try to verify the disk it says that "the disk has incorrect size for logical volume" (Directly translated from swedish). When I start the computer in the macOS Recovery mode I can see the main hard drive (called Macintosh HD) in disk utility. When I start the computer I am greeted with a screen showing a flashing folder with a question mark on it which seems to mean that the disk is damaged.
#INSTALL MOUNTAIN LION TARGET DISK MODE PRO#
I was given an old Mac Book Pro that my fiancee used to have, before it either got corrupted or she forgot her password.