Macos Catalina Reinstall

  

Reinstall

The OS is located on the 'Macintosh HD' volume. User data is located on the 'Macintosh HD - Data' volume.

CatalinaHow


Erase your hard drive and reinstall macOS. This is the hard part. Apple actually explains this in more detail on another page, which might be why it’s a little confusing. This section was tricky for me because I mistakenly assumed the options for erasing a drive on Catalina were the same as my other computer running El Capitan. Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing. Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes. Select the volume containing the bootable installer, then click Continue.

If you erased the drive volume, then why not erase the whole physical drive instead? If the physical drive is not seen in Disk Utility, then click on 'View' and select 'Show all devices' option so that the physical drive appears in the left pane of Disk Utility. I don't know if this is an option when booted from the local Recovery Mode (Command + R), but it should be an option when booted to Internet Recovery Mode (Command + Option + R) or from a bootable macOS USB installer. For Catalina the drive must be erased as GUID partition and APFS (top option).

Macos Catalina Reinstall Safari

Nov 23, 2019 4:26 PM

Macos Catalina Install Stuck

  1. I can see the answers suggested here on how to accomplish that: Mac stuck in restart cycle after failed macOS Catalina update However, when trying to recover / reinstall macOS - the installer also tells me - you don’t have enough free space to reinstall macOS.
  2. Easy & simple way to reinstall Mac if you are thinking about selling your computer or simply need to install a fresh copy macOS Catalina follow the tutorial.