The OS is located on the 'Macintosh HD' volume. User data is located on the 'Macintosh HD - Data' volume.
In Catalina, Mojave Big Sur, and potentially High Sierra (depending on your Mac) this will be APFS. But on older Macs running older macOS versions the format needs to be set to Mac OS Extended. When Disk Utility has finished erasing the disk, quit it to return to the macOS Utilities screen. Choose Install macOS. Press Continue and choose the drive you just erased and re-formatted as the destination. MacOS Catalina will start to install. When it’s finished, your Mac will restart and it will look like a brand new Mac. The correct way to reinstall macOS Catalina is to use your Mac’s Recovery Mode: Restart your Mac and then hold down ⌘ + R to activate Recovery Mode. In the first window, select Reinstall macOS ➙ Continue. Agree to the Terms & Conditions. Factory Reset Mac and Reinstall macOS Catalina. I hope the tutorial was able to help you with your Mac resetting problems. The steps are easy-to-follow, and I think everyone will be able to do it without any problem. Still, if you face any issue, comment down below, and we will help you out.
Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions. Follow these guidelines during installation: If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
Mac Catalina Reinstall Tool
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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).
Mac Catalina Reinstall Download
Nov 23, 2019 4:26 PM