That process has finished because in the last line: Install media now available at «/ Volumes / Install macOS Catalina».Wait for the process to finish, which can take up to 30 minutes, during which we will see how the percentage increases.Enter the computer password and press Enter.Copy and paste ” sudo / Applications / Install \ macOS \ Catalina.app/Contents/Resources/createinstallmedia –volume / Volumes / USB –nointeraction ” without the quotes and hit Enter.In “Name” we write “USB” without quotation marks, in “Format” we choose “MacOS Plus (with registration)” and in “Scheme” we choose “GUID partition map”.In the sidebar, we select the USB that we are going to use to create the installer.Once the download is complete, the installer will open, at that moment we touch. ![]() Search for «macOS Catalina» or use the.The first thing we will need is a USB with at least 8GB of space, then the steps are as follows: You can also force the backup to start immediately. In this same menu, you can decide whether to encrypt the backup or exclude certain folders. ![]() If you have an external hard drive, you can back up the system and all your data from System Preferences> Time Machine> Select disk. In the small box that will appear, switch to the tab that says Storage. In this tab, you will see the space in the use of your hard disk and the one you have available for the installation of CatalinaĮven if the idea is to install a clean version of Catalina, sometimes a backup saves you from losing an important file or game save that you didn’t know you would miss.Click on the apple in the upper left corner.Checking if you have the necessary memory is very similar to checking the model of your Mac: To install macOS Catalina you will need at least 12.5 Gb free, and 18.5 Gb if you will update a Mac that still uses OS X Yosemite or some previous OS. Then you will have to verify that you have enough available space on your hard drive. Verify that yours is one of the following models: To check if yours supports this new OS just click on the little apple in the upper left corner of the screen and choose About this Mac. Like every new operating system programmed by Apple, macOS Catalina will not be compatible with all Mac models, especially older ones. Restart The Computer And Erase The DiskĬheck That Your Mac Is Compatible With Catalina.Check That Your Mac Is Compatible With Catalina.When the new owner starts up the Mac, they can use their own information to complete the setup process. To perform a clean re-install in Catalina, once in Recovery Mode, you need to delete your Data volume, that’s the one named Macintosh HD - Data, or something similar if you’re using a custom name, and to erase your System volume. If you’re selling, trading in or giving away your Mac, press Command-Q to exit the setup assistant without completing the setup process, then click Shut Down. When the installation is complete, your Mac may restart to a setup assistant. Your Mac may restart and show a progress bar several times, and the screen may be empty for minutes at a time. Allow installation to complete without putting your Mac to sleep or closing its lid.If the installer offers you the choice between installing on Macintosh HD or Macintosh HD – Data, choose Macintosh HD.If the installer can't see your disk, or it says that it can't install on your computer or volume, you may need to erase your disk first. ![]()
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